A 36-year-old woman is brought to the emergency department after being involved in a motor vehicle collision. She is alert, awake, and oriented. There is no family history of serious illness and her only medication is an oral contraceptive. Her temperature is 37.3°C (99°F), pulse is 100/min, respirations are 20/min, and blood pressure is 102/80 mm Hg. Physical examination shows ecchymoses over the trunk and abdomen. A FAST scan of the abdomen is negative. An x-ray of the chest shows no fractures. A contrast-enhanced CT scan of the chest and abdomen is performed that shows a 4-cm sharply defined liver mass with a hypoattenuated central scar. Which of the following is the most appropriate next step in management?
Q112
A 39-year-old woman presents to the family medicine clinic to be evaluated by her physician for weight gain. She reports feeling fatigued most of the day despite eating a healthy diet and exercising regularly. The patient smokes a half-pack of cigarettes daily and has done so for the last 23 years. She is employed as a phlebotomist by the Red Cross. She has a history of hyperlipidemia for which she takes atorvastatin. She is unaware of her vaccination history, and there is no documented record of her receiving any vaccinations. Her heart rate is 76/min, respiratory rate is 14/min, temperature is 37.3°C (99.1°F), body mass index (BMI) is 33 kg/m2, and blood pressure is 128/78 mm Hg. The patient appears alert and oriented. Lung and heart auscultation are without audible abnormalities. The physician orders a thyroid panel to determine if that patient has hypothyroidism. Which of the following recommendations may be appropriate for the patient at this time?
Q113
A 62-year-old man with a history notable for alpha-thalassemia now presents to an urgent care clinic with complaints of increased thirst and urinary frequency. The physical exam is unremarkable, although there is a bronze discoloration of his skin. The laboratory analysis reveals a fasting blood glucose of 192 mg/dL, and a HbA1c of 8.7. Given the following options, what is the best treatment for the patient’s underlying disease?
Q114
A 57-year-old man is brought to the emergency department by a social worker from the homeless shelter. The man was acting strangely and then found unresponsive in his room. The social worker says she noticed many empty pill bottles near his bed. The patient has a past medical history of multiple hospital admissions for acute pancreatitis, dehydration, and suicide attempts. He is not currently taking any medications and is a known IV drug user. His temperature is 99.2°F (37.3°C), blood pressure is 107/48 mmHg, pulse is 140/min, respirations are 22/min, and oxygen saturation is 98% on room air. Physical exam is notable for a man with a Glasgow coma scale of 6. Laboratory values are ordered as seen below.
Hemoglobin: 10 g/dL
Hematocrit: 30%
Leukocyte count: 5,500/mm^3 with normal differential
Platelet count: 147,000/mm^3
Serum:
Albumin: 1.9 g/dL
Na+: 139 mEq/L
Cl-: 100 mEq/L
K+: 4.3 mEq/L
HCO3-: 25 mEq/L
BUN: 29 mg/dL
Glucose: 65 mg/dL
Creatinine: 1.5 mg/dL
Ca2+: 10.2 mg/dL
Prothrombin time: 27 seconds
Partial thromboplastin time: 67 seconds
AST: 12 U/L
ALT: 10 U/L
Which of the following is the most appropriate immediate management for this patient?
Q115
A 56-year-old female presents for initial evaluation by a rheumatologist with a chief complaint of back and joint pain. She says that she has been having mild pain for years, but that the pain has become worse over the course of the last 6 months. She clarifies that the pain is most severe in the mornings just after waking up but seems to improve throughout the day. She also notices that her mouth feels dry and she has difficulty eating dry food such as crackers. Finally, she has the sensation of having bits of sand in her eyes. She denies any past medical history or medication use. Serology for which of the following would most likely be positive in this patient?
Q116
A 15-year-old boy is brought to the emergency room for evaluation of malaise, dyspnea, and yellow skin and sclera. On examination, he is tachycardic, tachypneic, and the O2 saturation is less than 90%. The levels of unconjugated bilirubin and hemoglobinemia are increased, and there is an increased number of reticulocytes in the peripheral blood. What is the most likely diagnosis?
Q117
A 42-year-old woman comes to the physician because of a 2-month history of generalized itching and worsening fatigue. There is no personal or family history of serious illness. She takes eye drops for dry eyes. She occasionally takes acetaminophen for recurrent headaches. She drinks one alcoholic beverage daily. Vital signs are within normal limits. Examination shows jaundice and a nontender abdomen. The liver is palpated 3 cm below the right costal margin and the spleen is palpated 2 cm below the left costal margin. Laboratory studies show:
Hemoglobin 15.3 g/dL
Leukocyte count 8,400/mm3
Prothrombin time 13 seconds
Serum
Bilirubin
Total 3.5 mg/dL
Direct 2.4 mg/dL
Alkaline phosphatase 396 U/L
Aspartate aminotransferase (AST, GOT) 79 U/L
Alanine aminotransferase (ALT, GPT) 73 U/L
A liver biopsy specimen shows inflammation and destruction of small- and medium-sized intrahepatic bile ducts. Magnetic resonance cholangiopancreatography (MRCP) shows multiple small stones within the gallbladder and a normal appearance of extrahepatic bile ducts. Which of the following is the most appropriate next step in management?
Q118
A 59-year-old man comes to the emergency department because of progressive abdominal swelling and shortness of breath for 1 week. He drinks 12 to 13 alcoholic beverages daily. He appears emaciated. Examination shows pallor, jaundice, hepatomegaly, gynecomastia, and a protuberant abdomen with a fluid wave and shifting dullness. Periodic monitoring of which of the following markers is most appropriate for this patient?
Q119
A 45-year-old man comes to the clinic complaining of yellow skin and eyes, loss of appetite, and severe nausea over the last month or so. He drinks 2–3 beers everyday and about 5–6 on the weekend. He does not take any over-the-counter medications. He has smoked one pack of cigarettes every day for the last 20 years but does not use illicit drugs. Additionally, he reports no history of vomiting, abdominal pain, altered bowel habits, or unintentional weight loss. His temperature is 37°C (98.6°F), blood pressure is 135/85 mm Hg, pulse is 78/ min, respiratory rate is 14/ min, and BMI is 19 kg/m2. On physical examination his skin and sclera are icteric, and his abdomen is tender with a mildly enlarged liver. On laboratory investigations:
Complete blood count
Hemoglobin 11 g/dL
MCV 105 µm3
White blood cell 14,000/mm3
Platelets 110,000/mm3
Which of the following liver function analyses is expected in this patient?
Q120
A 54-year-old male presents to the emergency department after an episode of bloody vomiting. He is a chronic alcoholic with a history of cirrhosis, and this is the third time he is presenting with this complaint. His first two episodes of hematemesis required endoscopic management of bleeding esophageal varices. His hemoglobin on admission laboratory evaluation was 11.2 g/dL. The patient is stabilized, and upper endoscopy is performed with successful banding of bleeding varices. Follow-up lab-work shows hemoglobin levels of 10.9 g/dL and 11.1 g/dL on days 1 and 2 after admission. Which of the following is the best next step in the management of this patient?
Liver disease US Medical PG Practice Questions and MCQs
Question 111: A 36-year-old woman is brought to the emergency department after being involved in a motor vehicle collision. She is alert, awake, and oriented. There is no family history of serious illness and her only medication is an oral contraceptive. Her temperature is 37.3°C (99°F), pulse is 100/min, respirations are 20/min, and blood pressure is 102/80 mm Hg. Physical examination shows ecchymoses over the trunk and abdomen. A FAST scan of the abdomen is negative. An x-ray of the chest shows no fractures. A contrast-enhanced CT scan of the chest and abdomen is performed that shows a 4-cm sharply defined liver mass with a hypoattenuated central scar. Which of the following is the most appropriate next step in management?
A. Surgical resection of the mass
B. Percutaneous aspiration of the mass
C. Reassurance and observation (Correct Answer)
D. Discontinue the oral contraceptive
E. Biopsy of the mass
Explanation: ***Reassurance and observation***
- The liver mass described, a **4-cm sharply defined lesion with a hypoattenuated central scar**, is highly characteristic of **focal nodular hyperplasia (FNH)**.
- FNH is a **benign liver tumor** that rarely ruptures or becomes malignant, even in the setting of trauma; therefore, observation is the most appropriate management.
*Surgical resection of the mass*
- **Surgical resection** is typically reserved for FNH lesions that cause symptoms or for cases where there is diagnostic uncertainty.
- In this asymptomatic patient with characteristic imaging findings, surgical intervention is not indicated initially.
*Percutaneous aspiration of the mass*
- **Percutaneous aspiration** is generally not performed for FNH due to its benign nature and the characteristic imaging findings that usually allow for a confident diagnosis.
- Aspiration also carries risks such as bleeding and tumor seeding if the lesion were malignant.
*Discontinue the oral contraceptive*
- While oral contraceptives have been linked to an increased risk of hepatic adenoma, their association with FNH is less clear and generally not considered a cause.
- Discontinuing oral contraceptives is not necessary in the management of FNH and would not change the natural history of the lesion.
*Biopsy of the mass*
- A **biopsy** is usually unnecessary for FNH when imaging studies are characteristic, as described here.
- Biopsy carries risks of bleeding and damage to surrounding structures, and the imaging findings are typically sufficient for diagnosis.
Question 112: A 39-year-old woman presents to the family medicine clinic to be evaluated by her physician for weight gain. She reports feeling fatigued most of the day despite eating a healthy diet and exercising regularly. The patient smokes a half-pack of cigarettes daily and has done so for the last 23 years. She is employed as a phlebotomist by the Red Cross. She has a history of hyperlipidemia for which she takes atorvastatin. She is unaware of her vaccination history, and there is no documented record of her receiving any vaccinations. Her heart rate is 76/min, respiratory rate is 14/min, temperature is 37.3°C (99.1°F), body mass index (BMI) is 33 kg/m2, and blood pressure is 128/78 mm Hg. The patient appears alert and oriented. Lung and heart auscultation are without audible abnormalities. The physician orders a thyroid panel to determine if that patient has hypothyroidism. Which of the following recommendations may be appropriate for the patient at this time?
A. Mammogram
B. Low-dose chest CT
C. Hepatitis C vaccination
D. Shingles vaccination
E. Hepatitis B vaccination (Correct Answer)
Explanation: ***Hepatitis B vaccination***
- The patient works as a **phlebotomist**, placing her at increased risk for exposure to **bloodborne pathogens** like hepatitis B.
- Her unknown vaccination history means she should be considered **unvaccinated** and, therefore, is a candidate for hepatitis B vaccination given her occupational exposure.
*Mammogram*
- **Routine screening mammograms** are generally recommended for women aged 40 to 49 to begin discussions about screening, with annual screening starting at age 40 or 50, depending on guidelines. This patient is 39.
- There are **no specific risk factors** mentioned (e.g., family history of breast cancer) that would prompt earlier screening at age 39.
*Low-dose chest CT*
- **Low-dose CT screening for lung cancer** is recommended for individuals aged 50-80 with a **20 pack-year smoking history** who currently smoke or have quit within the past 15 years.
- This patient is 39 years old and has a **11.5 pack-year smoking history** (0.5 packs/day * 23 years), which does not meet the criteria for screening.
*Hepatitis C vaccination*
- There is **currently no preventive vaccination available for hepatitis C**.
- Management involves screening for exposure (e.g., among healthcare workers) and antiviral treatment if infected.
*Shingles vaccination*
- The **shingles vaccine (recombinant zoster vaccine)** is recommended for all individuals aged **50 years and older**, regardless of previous herpes zoster infection.
- This patient is 39 years old, which is below the recommended age for routine shingles vaccination.
Question 113: A 62-year-old man with a history notable for alpha-thalassemia now presents to an urgent care clinic with complaints of increased thirst and urinary frequency. The physical exam is unremarkable, although there is a bronze discoloration of his skin. The laboratory analysis reveals a fasting blood glucose of 192 mg/dL, and a HbA1c of 8.7. Given the following options, what is the best treatment for the patient’s underlying disease?
A. Recurrent phlebotomy (Correct Answer)
B. Basal insulin
C. Metformin
D. Deferoxamine
E. Basal and bolus insulin
Explanation: ***Recurrent phlebotomy***
- This patient's presentation with **bronze skin discoloration**, **diabetes mellitus** (fasting glucose 192 mg/dL, HbA1c 8.7%), and a history of **alpha-thalassemia** is highly suggestive of **hemochromatosis with iron overload**.
- While the patient has alpha-thalassemia, there is **no indication of active transfusion dependence** in this case, and the clinical picture suggests **established iron overload** requiring treatment.
- **Recurrent phlebotomy** is the **preferred treatment for iron overload** when patients have adequate hemoglobin levels and are not actively transfusion-dependent, as it is more effective, better tolerated, and safer than chelation therapy.
- Even in patients with mild thalassemia, if hemoglobin is adequate (>10-11 g/dL), phlebotomy can be used to reduce iron stores effectively.
*Deferoxamine*
- **Deferoxamine** is an **iron chelating agent** that can treat iron overload, but it requires **parenteral administration** (IV or subcutaneous infusion), making it inconvenient and typically reserved for patients who are **transfusion-dependent** or cannot tolerate phlebotomy.
- Modern practice favors **oral chelators** (deferasirox, deferiprone) over deferoxamine for chronic iron overload management.
- Without evidence of ongoing transfusions or contraindications to phlebotomy, chelation is **not first-line therapy**.
*Basal insulin*
- While the patient does have **diabetes mellitus**, basal insulin treats the symptomatic hyperglycemia but does not address the **underlying cause** of the diabetes, which is **iron-induced pancreatic damage** due to hemochromatosis.
- The question asks for treatment of the **underlying disease** (hemochromatosis), not just the diabetic complication.
*Metformin*
- **Metformin** is a common first-line treatment for **Type 2 Diabetes Mellitus**, but it only treats the hyperglycemia symptomatically and does not target the **iron overload** causing the diabetes.
- Additionally, metformin may be **relatively contraindicated** in patients with hemochromatosis-related liver disease or cirrhosis due to increased risk of lactic acidosis.
*Basal and bolus insulin*
- Similar to basal insulin alone, **basal and bolus insulin** regimens manage the **hyperglycemia** but do not treat the **iron overload** that is the root cause of the patient's diabetes and bronze discoloration.
- Treating the underlying hemochromatosis with iron reduction therapy is essential to prevent further organ damage.
Question 114: A 57-year-old man is brought to the emergency department by a social worker from the homeless shelter. The man was acting strangely and then found unresponsive in his room. The social worker says she noticed many empty pill bottles near his bed. The patient has a past medical history of multiple hospital admissions for acute pancreatitis, dehydration, and suicide attempts. He is not currently taking any medications and is a known IV drug user. His temperature is 99.2°F (37.3°C), blood pressure is 107/48 mmHg, pulse is 140/min, respirations are 22/min, and oxygen saturation is 98% on room air. Physical exam is notable for a man with a Glasgow coma scale of 6. Laboratory values are ordered as seen below.
Hemoglobin: 10 g/dL
Hematocrit: 30%
Leukocyte count: 5,500/mm^3 with normal differential
Platelet count: 147,000/mm^3
Serum:
Albumin: 1.9 g/dL
Na+: 139 mEq/L
Cl-: 100 mEq/L
K+: 4.3 mEq/L
HCO3-: 25 mEq/L
BUN: 29 mg/dL
Glucose: 65 mg/dL
Creatinine: 1.5 mg/dL
Ca2+: 10.2 mg/dL
Prothrombin time: 27 seconds
Partial thromboplastin time: 67 seconds
AST: 12 U/L
ALT: 10 U/L
Which of the following is the most appropriate immediate management for this patient?
A. Colloid-containing fluids
B. Liver transplant
C. Factor 2, 7, 9, and 10 concentrate
D. Fresh frozen plasma
E. Supportive therapy, thiamine, dextrose, naloxone, and NPO (Correct Answer)
Explanation: ***Supportive therapy, thiamine, dextrose, naloxone, and NPO***
- This patient presents with signs of **acute neurological depression** (GCS 6, unresponsiveness) in the setting of a history of **IV drug use**, a known **suicide attempt**, and found with **empty pill bottles**, suggesting an overdose. The initial management for altered mental status of unknown etiology in such a setting includes prompt **supportive care** (airflow management, hemodynamic stability), **thiamine** (to prevent Wernicke-Korsakoff syndrome, especially given history of alcoholism/malnutrition common in homeless IV drug users), **dextrose** (to correct hypoglycemia, as suggested by glucose 65 mg/dL), and **naloxone** (to reverse potential opioid overdose).
- Given the patient's severe neurological compromise, making him **NPO (nil per os)** is crucial to prevent **aspiration pneumonia**. While the patient's labs show evidence of chronic liver disease (low albumin, prolonged PT/PTT), the immediate priority for his acute presentation is managing the suspected overdose and its systemic effects.
*Colloid-containing fluids*
- While **hypoalbuminemia** (1.9 g/dL) is present, indicating severe liver dysfunction, administering colloids like albumin is **not the immediate priority** for an acutely unresponsive patient with suspected overdose.
- Colloids are typically used to expand intravascular volume in specific situations like large volume paracentesis in cirrhotic patients, or severe sepsis with persistent hypotension, which is not the primary acute concern here.
*Liver transplant*
- This patient has signs of **decompensated chronic liver disease**, (low albumin, prolonged PT/PTT, history of pancreatitis). However, **liver transplant** is a definitive treatment for end-stage liver disease and is a **long-term management strategy**, not an acute intervention for an unresponsive patient in the emergency department.
- Furthermore, eligibility for liver transplantation involves a comprehensive evaluation of the patient's overall health, psychosocial factors (especially with a history of IV drug use and suicide attempts), and abstinence from substances.
*Factor 2, 7, 9, and 10 concentrate*
- The patient has **prolonged PT (27 seconds)** and **PTT (67 seconds)**, indicating a coagulopathy likely secondary to impaired synthetic function of the liver, which produces these clotting factors. However, administering specific clotting factor concentrates (like **prothrombin complex concentrate or PCC**) is typically reserved for **active bleeding** or **urgent invasive procedures** in patients with coagulopathy.
- There is no mention of active bleeding in the vignette, and the primary issue is altered mental status from a suspected overdose, not immediate bleeding risk.
*Fresh frozen plasma*
- **Fresh frozen plasma (FFP)** contains all clotting factors and can be used to reverse coagulopathy. Similar to factor concentrates, FFP is indicated for acute reversal of coagulopathy in cases of **active bleeding** or **prior to invasive procedures**, or rarely for volume expansion in specific contexts of severe liver failure.
- Without evidence of active bleeding or an urgent need for an invasive procedure, the immediate use of FFP is not the most effective therapy for this patient's acute presentation as his primary problem is altered mental status and possible overdose.
Question 115: A 56-year-old female presents for initial evaluation by a rheumatologist with a chief complaint of back and joint pain. She says that she has been having mild pain for years, but that the pain has become worse over the course of the last 6 months. She clarifies that the pain is most severe in the mornings just after waking up but seems to improve throughout the day. She also notices that her mouth feels dry and she has difficulty eating dry food such as crackers. Finally, she has the sensation of having bits of sand in her eyes. She denies any past medical history or medication use. Serology for which of the following would most likely be positive in this patient?
A. Anti-Jo1 and anti-Mi2 antibodies
B. Anti-cyclic citrullinated peptide (CCP) antibody
C. Anti-Ro and anti-La antibodies (Correct Answer)
D. Anti-smooth muscle antibody
E. Anti-centromere antibody
Explanation: ***Anti-Ro and anti-La antibodies***
- The patient's symptoms of **morning stiffness**, **dry mouth** (xerostomia), and **sandy sensation in the eyes** (xerophthalmia) are classic manifestations of **Sjögren's syndrome**.
- **Anti-Ro/SSA** and **anti-La/SSB antibodies** are highly specific markers for Sjögren's syndrome, present in the majority of patients.
*Anti-Jo1 and anti-Mi2 antibodies*
- **Anti-Jo1 antibodies** are associated with **polymyositis** and dermatomyositis, particularly those with interstitial lung disease and arthritis.
- **Anti-Mi2 antibodies** are specific for **dermatomyositis**, often presenting with typical skin rashes like the heliotrope rash and Gottron's papules, which are not described here.
*Anti-cyclic citrullinated peptide (CCP) antibody*
- This antibody is a highly specific marker for **rheumatoid arthritis**, characterized by **symmetric polyarthritis** primarily affecting small joints.
- While the patient has joint pain, the prominent sicca symptoms (dry mouth and eyes) and lack of specific joint distribution make rheumatoid arthritis less likely.
*Anti-smooth muscle antibody*
- This antibody is primarily associated with **autoimmune hepatitis**, a condition leading to inflammation and damage of the liver.
- The patient's presentation does not suggest liver involvement; instead, it points towards a systemic autoimmune disorder affecting exocrine glands.
*Anti-centromere antibody*
- This antibody is a marker for **limited cutaneous systemic sclerosis** (CREST syndrome), characterized by calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, and telangiectasias.
- None of these specific scleroderma features are present in the patient's chief complaints.
Question 116: A 15-year-old boy is brought to the emergency room for evaluation of malaise, dyspnea, and yellow skin and sclera. On examination, he is tachycardic, tachypneic, and the O2 saturation is less than 90%. The levels of unconjugated bilirubin and hemoglobinemia are increased, and there is an increased number of reticulocytes in the peripheral blood. What is the most likely diagnosis?
A. Hemolytic anemia (Correct Answer)
B. Aplastic anemia
C. Sideropenic anemia
D. Anemia of chronic disease
E. Acute leukemia
Explanation: ***Correct: Hemolytic anemia***
- The presence of **jaundice** (yellow skin and sclera) from **unconjugated hyperbilirubinemia**, combined with **anemia** and an **increased reticulocyte count**, is highly suggestive of hemolytic anemia.
- **Hemoglobinemia** indicates red blood cell destruction, and the body's attempt to compensate is reflected by the increased production of reticulocytes.
*Incorrect: Aplastic anemia*
- This condition is characterized by **pancytopenia**, meaning a decrease in all blood cell lines, including red blood cells, white blood cells, and platelets.
- A hallmark of aplastic anemia is **reticulocytopenia** (decreased reticulocyte count), which contradicts the increased reticulocytes seen in this patient.
*Incorrect: Sideropenic anemia*
- Also known as **iron deficiency anemia**, it is typically characterized by **microcytic, hypochromic red blood cells** and low iron stores.
- It does not typically present with elevated unconjugated bilirubin, hemoglobinemia, or an elevated reticulocyte count.
*Incorrect: Anemia of chronic disease*
- This type of anemia is usually **normocytic or microcytic** and is associated with chronic inflammation or infection.
- It is characterized by **low serum iron** and **normal or increased ferritin**, and unlike hemolytic anemia, it does not cause increased unconjugated bilirubin or hemoglobinemia.
*Incorrect: Acute leukemia*
- Acute leukemia involves the rapid proliferation of abnormal white blood cells in the bone marrow, often leading to **pancytopenia** or specific cytopenias.
- While it can cause anemia, it does not directly explain the triad of **jaundice from unconjugated hyperbilirubinemia**, **hemoglobinemia**, and an **elevated reticulocyte count**, which are distinct features of hemolytic anemia.
Question 117: A 42-year-old woman comes to the physician because of a 2-month history of generalized itching and worsening fatigue. There is no personal or family history of serious illness. She takes eye drops for dry eyes. She occasionally takes acetaminophen for recurrent headaches. She drinks one alcoholic beverage daily. Vital signs are within normal limits. Examination shows jaundice and a nontender abdomen. The liver is palpated 3 cm below the right costal margin and the spleen is palpated 2 cm below the left costal margin. Laboratory studies show:
Hemoglobin 15.3 g/dL
Leukocyte count 8,400/mm3
Prothrombin time 13 seconds
Serum
Bilirubin
Total 3.5 mg/dL
Direct 2.4 mg/dL
Alkaline phosphatase 396 U/L
Aspartate aminotransferase (AST, GOT) 79 U/L
Alanine aminotransferase (ALT, GPT) 73 U/L
A liver biopsy specimen shows inflammation and destruction of small- and medium-sized intrahepatic bile ducts. Magnetic resonance cholangiopancreatography (MRCP) shows multiple small stones within the gallbladder and a normal appearance of extrahepatic bile ducts. Which of the following is the most appropriate next step in management?
A. Anti-mitochondrial antibody testing
B. Extracorporeal shock wave lithotripsy
C. Administer N-acetylcysteine
D. Chest x-ray
E. Dual-energy x-ray absorptiometry (Correct Answer)
Explanation: ***Dual-energy x-ray absorptiometry***
- Patients with **primary biliary cholangitis (PBC)** are at increased risk for **osteoporosis** due to chronic cholestasis interfering with vitamin D and calcium absorption, making bone density screening essential.
- The presented symptoms of **fatigue, pruritus, jaundice, elevated alkaline phosphatase**, and histologic findings of **inflammation and destruction of small- and medium-sized intrahepatic bile ducts** are all highly suggestive of PBC.
*Anti-mitochondrial antibody testing*
- While **anti-mitochondrial antibodies (AMA)** are a hallmark of PBC (present in 90-95% of cases), the diagnosis is already strongly supported by the patient's **clinical presentation, biochemical abnormalities**, and particularly the **liver biopsy findings**.
- Performing AMA testing at this stage would confirm the serologic marker but would not change the immediate management needed for complications like osteoporosis.
*Extracorporeal shock wave lithotripsy*
- This procedure is used to break up **gallstones** or kidney stones but is not indicated for **intrahepatic bile duct inflammation** or the systemic complications of PBC.
- The patient's MRCP shows gallstones, but these are incidental and not causing the primary biliary inflammation or destruction seen on biopsy.
*Administer N-acetylcysteine*
- **N-acetylcysteine** is an antidote for **acetaminophen overdose** and has no role in the management of PBC or its associated complications.
- Although the patient occasionally takes acetaminophen, there is no evidence of acute liver injury from an overdose.
*Chest x-ray*
- A **chest x-ray** is generally used to evaluate **pulmonary conditions** or cardiac issues and is not indicated in the initial workup or management of PBC, especially with no respiratory symptoms.
- There is no clinical indication for a chest x-ray provided in the patient's presentation.
Question 118: A 59-year-old man comes to the emergency department because of progressive abdominal swelling and shortness of breath for 1 week. He drinks 12 to 13 alcoholic beverages daily. He appears emaciated. Examination shows pallor, jaundice, hepatomegaly, gynecomastia, and a protuberant abdomen with a fluid wave and shifting dullness. Periodic monitoring of which of the following markers is most appropriate for this patient?
A. Cancer antigen 19-9
B. S-100 protein
C. Alpha-fetoprotein (Correct Answer)
D. Beta-human chorionic gonadotropin
E. Carcinoembryonic antigen
Explanation: ***Alpha-fetoprotein***
- This patient presents with **chronic alcoholism**, which is a significant risk factor for developing **hepatocellular carcinoma (HCC)** due to cirrhosis.
- **Alpha-fetoprotein (AFP)** is a well-established tumor marker used for screening and monitoring individuals at high risk for HCC, especially in the context of cirrhosis.
*Cancer antigen 19-9*
- **CA 19-9** is primarily used as a tumor marker for **pancreatic cancer**, and sometimes for biliary tract cancers.
- While alcoholism can cause pancreatic issues, the patient's presentation of hepatomegaly, jaundice, and ascites points more strongly towards liver pathology.
*S-100 protein*
- **S-100 protein** is a marker for **melanoma** and **schwannomas**.
- It has no relevance to the patient's presentation of liver disease and abdominal swelling.
*Beta-human chorionic gonadotropin*
- **Beta-hCG** is a tumor marker primarily associated with **germ cell tumors** (e.g., testicular and ovarian cancers) and gestational trophoblastic disease.
- It is not indicated for monitoring liver-related conditions or potential HCC.
*Carcinoembryonic antigen*
- **Carcinoembryonic antigen (CEA)** is most commonly used for monitoring **colorectal cancer**.
- It is not a primary marker for liver cancer or the complications of liver cirrhosis.
Question 119: A 45-year-old man comes to the clinic complaining of yellow skin and eyes, loss of appetite, and severe nausea over the last month or so. He drinks 2–3 beers everyday and about 5–6 on the weekend. He does not take any over-the-counter medications. He has smoked one pack of cigarettes every day for the last 20 years but does not use illicit drugs. Additionally, he reports no history of vomiting, abdominal pain, altered bowel habits, or unintentional weight loss. His temperature is 37°C (98.6°F), blood pressure is 135/85 mm Hg, pulse is 78/ min, respiratory rate is 14/ min, and BMI is 19 kg/m2. On physical examination his skin and sclera are icteric, and his abdomen is tender with a mildly enlarged liver. On laboratory investigations:
Complete blood count
Hemoglobin 11 g/dL
MCV 105 µm3
White blood cell 14,000/mm3
Platelets 110,000/mm3
Which of the following liver function analyses is expected in this patient?
Explanation: ***Alanine aminotransferase (ALT): 120 / Aspartate aminotransferase (AST): 256 / AST/ALT: 2.1***
- This patient presents with **jaundice**, **hepatomegaly**, and laboratory findings including **macrocytic anemia** (MCV 105), **thrombocytopenia** (platelets 110,000), and **leukocytosis** (WBC 14,000). These, combined with a history of daily alcohol consumption, are highly suggestive of **alcoholic hepatitis**.
- In alcoholic hepatitis, **AST levels are typically higher than ALT levels**, with an **AST/ALT ratio usually greater than 2**, and often less than 300-400 IU/L. An AST/ALT ratio of 2.1 fits this pattern, along with the given absolute values.
*Alanine aminotransferase (ALT): 2,521 / Aspartate aminotransferase (AST): 2,222 / AST/ALT: 0.88*
- These extremely high transaminase levels (in the thousands) are more indicative of **acute viral hepatitis** (e.g., hepatitis A, B, or C) or **severe ischemic hepatitis** (shock liver), rather than alcoholic hepatitis, where levels are typically lower.
- The AST/ALT ratio of 0.88 (ALT > AST) is characteristic of **acute viral hepatitis**, which contradicts the clinical picture of chronic alcohol use leading to alcoholic hepatitis.
*Alanine aminotransferase (ALT): 1,500 / Aspartate aminotransferase (AST): 1,089 / AST/ALT: 0.73*
- While showing elevated transaminases, the absolute values are still significantly higher than typically seen in alcoholic hepatitis, suggesting other causes like acute viral or drug-induced liver injury.
- An AST/ALT ratio less than 1 (ALT > AST) is also more commonly seen in **viral hepatitis** or **non-alcoholic fatty liver disease (NAFLD)**, not alcoholic hepatitis.
*Alanine aminotransferase (ALT): 83 / Aspartate aminotransferase (AST): 72 / AST/ALT: 0.87*
- These values represent only **mildly elevated transaminases**, which, while abnormal, are not high enough to explain the patient's prominent jaundice and severe symptoms associated with acute alcoholic hepatitis.
- The AST/ALT ratio is less than 1, inconsistent with the typical findings in alcoholic hepatitis.
*Alanine aminotransferase (ALT): 38 / Aspartate aminotransferase (AST): 30 / AST/ALT: 0.79*
- These transaminase levels are within the **normal reference range** (or very minimally elevated), which would not account for the patient's significant clinical presentation of jaundice and symptoms of acute liver injury.
- Normal transaminase levels rule out acute hepatitis, including alcoholic hepatitis.
Question 120: A 54-year-old male presents to the emergency department after an episode of bloody vomiting. He is a chronic alcoholic with a history of cirrhosis, and this is the third time he is presenting with this complaint. His first two episodes of hematemesis required endoscopic management of bleeding esophageal varices. His hemoglobin on admission laboratory evaluation was 11.2 g/dL. The patient is stabilized, and upper endoscopy is performed with successful banding of bleeding varices. Follow-up lab-work shows hemoglobin levels of 10.9 g/dL and 11.1 g/dL on days 1 and 2 after admission. Which of the following is the best next step in the management of this patient?
A. Begin long-term octreotide and a 4-week course of prophylactic antibiotics
B. Monitor stability and discharge with continuation of endoscopic surveillance at regular 3 month intervals
C. Balloon tamponade of bleeding varices
D. Give 2 units packed RBCs
E. Discuss with the patient the option of a transjugular intrahepatic portosystemic stent (TIPS) (Correct Answer)
Explanation: ***Discuss with the patient the option of a transjugular intrahepatic portosystemic stent (TIPS)***
- This patient has experienced **recurrent variceal bleeding** despite endoscopic management, indicating a high risk of further rebleeding and mortality. **TIPS placement** effectively decompresses the portal system, reducing portal pressure and the risk of recurrent hemorrhage.
- Given the history of **multiple bleeding episodes** successfully managed acutely, the focus shifts to preventing future life-threatening events, making TIPS a critical secondary prevention strategy.
*Begin long-term octreotide and a 4-week course of prophylactic antibiotics*
- **Octreotide** is primarily used for the acute control of variceal bleeding by causing splanchnic vasoconstriction, not as a long-term preventive measure after successful banding.
- **Prophylactic antibiotics** are typically given for a short course (up to 7 days) in patients with variceal hemorrhage to prevent bacterial infections, not for 4 weeks post-stabilization and banding.
*Monitor stability and discharge with continuation of endoscopic surveillance at regular 3 month intervals*
- This patient has already experienced **recurrent bleeding episodes** despite endoscopic management, suggesting that routine surveillance and continued banding alone may not be sufficient to prevent further severe hemorrhages.
- While endoscopic surveillance is important, the current situation warrants a more aggressive intervention to reduce the **high risk of rebleeding**, rather than simply continuing the prior, less effective strategy.
*Balloon tamponade of bleeding varices*
- **Balloon tamponade** is a temporary measure used to control acute, massive variceal bleeding refractory to other treatments, typically while preparing for more definitive interventions.
- The patient's bleeding was successfully controlled by **endoscopic banding**, and he is now stable, so balloon tamponade is not indicated at this stage.
*Give 2 units packed RBCs*
- The patient's hemoglobin levels (11.2 g/dL on admission, 10.9 g/dL on day 1, 11.1 g/dL on day 2) are relatively stable and **above the typical transfusion threshold** of 7 g/dL (or 8 g/dL in certain situations).
- Transfusing blood without active bleeding or significant symptomatic anemia is generally discouraged, as it carries risks and is not indicated here.