General Medicine Practice Questions

Q: What is the earliest evidence of clubbing?

Softening of the nail bed. **Explanation:** The earliest clinical sign of finger clubbing (hypertrophic osteoarthropathy) is the **softening of the nail bed** [1]. This occurs due to the proliferation of soft tissue and increased vascularity at the base of the nail. Clinically, this is demonstrated by the **"Fluctuation Test,"** where palpating the nail bed gives a spongy, floating sensation because the nail plate is no longer firmly attached to the underlying bone [1]. **Analysis of Options:** * **Softening of the nail bed (Correct):** This is the initial pathological change. It precedes any visible structural alterations in the nail's curvature or diameter [1]. * **Shininess of the nail (Incorrect):** While the skin at the base of the nail may become smooth and shiny, this is a secondary change that occurs after the initial softening and loss of the Lovibond angle. * **Increased anteroposterior (AP) diameter (Incorrect):** This is a later feature of clubbing [2]. As the condition progresses, the AP diameter increases, eventually leading to the characteristic "drumstick" appearance. * **Increased transverse diameter (Incorrect):** Similar to the AP diameter, changes in the transverse curvature occur in more advanced stages of clubbing. **High-Yield Clinical Pearls for NEET-PG:** 1. **Lovibond Angle:** The angle between the nail plate and the proximal nail fold. In clubbing, this angle is lost (becomes >180°). 2. **Schamroth’s Sign:** Loss of the diamond-shaped window when the dorsal surfaces of terminal phalanges of corresponding fingers are opposed. 3. **Common Causes:** Lung cancer (especially non-small cell), Bronchiectasis, Lung abscess, Cyanotic congenital heart disease, and Inflammatory Bowel Disease (IBD) [2]. 4. **Note:** Clubbing is **NOT** typically seen in uncomplicated COPD or Asthma; its presence in these patients should prompt a search for underlying malignancy or bronchiectasis.

Q: Blood transfusion should be completed within how many hours of initiation?

1-4 hours. ### Explanation **Correct Option: A (1-4 hours)** The standard protocol for blood transfusion (specifically Packed Red Blood Cells) dictates that the infusion should be completed within **4 hours** of initiation. The underlying medical rationale is twofold: 1. **Bacterial Proliferation:** Blood products are stored at 2–6°C. Once removed from refrigeration and kept at room temperature, the risk of bacterial growth (especially Gram-negative organisms like *Yersinia enterocolitica*) increases significantly. 2. **Hemolysis:** Prolonged exposure to room temperature leads to the degradation of red cell membranes and metabolic changes, reducing the efficacy of the transfusion. Ideally, a unit should be started within 30 minutes of leaving the blood bank and infused over 2–3 hours. Adverse effects can occur in up to 3% of transfusions, and any signs during administration must be monitored closely [1]. **Why Other Options are Incorrect:** * **Options B, C, and D:** These durations exceed the 4-hour safety window. Keeping blood at room temperature for more than 4 hours exponentially increases the risk of **septic transfusion reactions**, which can be fatal. **High-Yield Clinical Pearls for NEET-PG:** * **Rate of Infusion:** In the first 15 minutes, the rate should be slow (approx. 2 ml/min) to monitor for acute hemolytic reactions. * **Platelets and FFP:** These should typically be infused faster (within 30–60 minutes) as they are stored at different temperatures and are more prone to contamination. * **Transfusion-Associated Circulatory Overload (TACO):** In patients with heart failure or chronic anemia, the rate may be slowed, but it must still strictly adhere to the 4-hour limit. If a patient cannot tolerate the volume within 4 hours, the unit should be split into smaller aliquots by the blood bank. * **Needle Gauge:** A 18-20G needle is preferred for adults to prevent mechanical hemolysis.

Q: Which of the following electrolyte imbalances is most likely to cause paralytic ileus?

Hypokalemia. **Explanation:** **Hypokalemia (Option A)** is the most common electrolyte abnormality associated with paralytic ileus. Potassium is essential for maintaining the resting membrane potential of smooth muscle cells. Low extracellular potassium levels lead to hyperpolarization of the cell membrane, making it more difficult for smooth muscle cells in the gastrointestinal tract to reach the threshold for depolarization. This results in decreased peristalsis, bowel distension, and the clinical picture of ileus. **Incorrect Options:** * **Hypoglycemia (Option B):** While severe hypoglycemia can cause neurological symptoms or sympathetic activation, it does not directly inhibit intestinal smooth muscle contraction. * **Hyperkalemia (Option C):** High potassium levels typically increase neuromuscular excitability initially. While it can cause cardiac arrhythmias, it is not a classic cause of adynamic ileus. * **Hypercalcemia (Option D):** While hypercalcemia can cause constipation due to decreased neuromuscular excitability, **Hypokalemia** is the more frequent and "classic" cause of postoperative paralytic ileus tested in surgical exams. (Note: Hypomagnesemia and Hyponatremia are also associated with ileus). **Clinical Pearls for NEET-PG:** * **Postoperative Ileus:** Normal bowel function typically returns in the following order: Small Intestine (0–24 hours) → Stomach (24–48 hours) → Colon (48–72 hours). * **Management:** The first step in managing postoperative ileus is often checking the electrolyte panel, specifically **Potassium** and **Magnesium**. * **Drug-induced Ileus:** Always consider Opioids and Anticholinergics as pharmacological causes. * **Ogilvie Syndrome:** This is acute pseudo-obstruction of the colon, often seen in elderly or bedridden patients, also exacerbated by electrolyte imbalances.

Q: Which of the following is NOT used for the assessment of malnutrition?

None of the above. **Explanation:** The assessment of malnutrition involves a combination of anthropometric, biochemical, and clinical parameters. In this question, all three listed options are valid indicators used to evaluate nutritional status; therefore, **"None of the above"** is the correct choice. 1. **Creatinine-Height Index (CHI):** This is a sensitive biochemical marker for **lean body mass** and skeletal muscle depletion. Since creatinine excretion is proportional to muscle mass, a low CHI indicates protein-energy malnutrition (PEM). 2. **Transferrin:** This is a transport protein for iron. In the context of nutrition, it serves as a **biochemical marker of visceral protein status**. Because it has a shorter half-life (approx. 8 days) than albumin (approx. 20 days), it is a more sensitive indicator of recent protein depletion. 3. **Total Lymphocyte Count (TLC):** Malnutrition leads to secondary immunodeficiency. TLC is used as a surrogate marker for **immune competence**. A low TLC (<1500 cells/mm³) is often associated with increased nutritional risk and poor clinical outcomes. **High-Yield Clinical Pearls for NEET-PG:** * **Albumin vs. Pre-albumin:** While Albumin is the most common marker, **Pre-albumin (Transthyretin)** is the "Gold Standard" for monitoring acute changes in nutritional status due to its very short half-life (2 days). * **Anthropometry:** In community settings, **Mid-Upper Arm Circumference (MUAC)** is the preferred screening tool for Severe Acute Malnutrition (SAM) in children aged 6–59 months (Cut-off: <11.5 cm). * **Nitrogen Balance:** This is the most precise way to measure the adequacy of protein intake versus breakdown.

Q: Systemic Inflammatory Response Syndrome (SIRS) includes all of the following criteria, EXCEPT:

Thrombocytopenia. ### Explanation **Systemic Inflammatory Response Syndrome (SIRS)** is a clinical syndrome characterized by a robust inflammatory state in response to either infectious or non-infectious insults (e.g., trauma, burns, pancreatitis). The diagnosis is based on specific physiological parameters. **Why Thrombocytopenia is the Correct Answer:** Thrombocytopenia (low platelet count) is **not** a criterion for SIRS. While a low platelet count is a significant marker for **Sepsis-induced organ dysfunction** (as measured by the SOFA score) or Disseminated Intravascular Coagulation (DIC), it does not fall under the four classic physiological parameters defined by the 1992 ACCP/SCCM consensus conference. **Analysis of Incorrect Options (SIRS Criteria):** To diagnose SIRS, at least **two** of the following four criteria must be met: 1. **Temperature (Hyperthermia/Hypothermia):** >38°C (100.4°F) or 90 beats per minute (Tachycardia). 3. **Respiratory Rate:** >20 breaths per minute or PaCO₂ 12,000/mm³, 10% immature (band) forms. This makes Option A incorrect as it is a valid criterion. **Clinical Pearls for NEET-PG:** * **Sepsis-3 Definition:** The modern definition of Sepsis has shifted away from SIRS toward the **qSOFA** (Quick SOFA) score, which includes: 1. Altered mental status (GCS <15), 2. Systolic BP ≤100 mmHg, 3. Respiratory rate ≥22/min. * **SIRS vs. Sepsis:** SIRS + a documented/suspected infection = Sepsis. * **High-Yield Fact:** SIRS can occur without infection (e.g., in acute pancreatitis or major surgery), whereas Sepsis always implies an infectious etiology.

Q: Palmar erythema is seen in all of the following conditions except?

Anemia. **Explanation:** Palmar erythema is a clinical sign characterized by a symmetrical, mottled reddening of the palms, specifically over the thenar and hypothenar eminences. The underlying pathophysiology is primarily related to **hyperdynamic circulation** and **increased levels of circulating estrogen**, which lead to capillary dilatation. **Why Anemia is the Correct Answer:** Anemia is characterized by **pallor** of the palmar creases [1] and conjunctiva [1] due to reduced hemoglobin levels. While severe anemia can cause a hyperdynamic state, it does not typically manifest as palmar erythema. Therefore, it is the "except" in this list. **Analysis of Other Options:** * **Pregnancy (Option A):** High levels of endogenous estrogen during pregnancy cause increased vascularity and capillary dilatation, making palmar erythema a common physiological finding (seen in ~60-70% of pregnancies). * **Cirrhosis (Option B):** This is the most classic association. In chronic liver disease, the liver's ability to metabolize estrogen is impaired. Elevated estrogen levels and increased nitric oxide production lead to peripheral vasodilation and palmar erythema. * **Wilson Disease (Option D):** As a cause of chronic hepatitis and eventually cirrhosis, Wilson disease leads to palmar erythema via the same mechanism of hepatic insufficiency and altered hormone metabolism. **NEET-PG High-Yield Pearls:** * **Distribution:** Palmar erythema typically spares the central portion of the palm. * **Other Causes:** Thyrotoxicosis (due to increased cardiac output), Rheumatoid Arthritis (RA), and Chronic Febrile illnesses. * **Liver Signs:** Often co-exists with **Spider Angiomata** (also estrogen-dependent). * **Clinical Note:** It is not specific to liver disease but serves as a marker for altered sex hormone metabolism or systemic vasodilation.

Q: Chylous ascites is caused by all of the following except:

Colloid carcinoma of stomach.. **Explanation:** **Chylous ascites** is the accumulation of lipid-rich lymph (chyle) in the peritoneal cavity, characterized by a milky appearance and triglyceride levels typically >200 mg/dL. It results from the disruption of the lymphatic system due to obstruction or trauma. **Why Option A is the Correct Answer:** While malignancies are the leading cause of chylous ascites in adults (especially lymphomas), **Colloid carcinoma of the stomach** typically presents with **pseudomyxoma peritonei** or mucinous ascites rather than chylous ascites. In mucinous adenocarcinoma, the fluid is gelatinous and rich in mucin, not triglycerides. Therefore, it is the least likely cause among the given options. **Analysis of Incorrect Options:** * **B. Tuberculosis:** In developing countries, TB is a major cause. It causes chylous ascites through the obstruction of lacteals and the cisterna chyli by enlarged, caseating mesenteric lymph nodes. * **C. Trauma:** This includes both accidental trauma and iatrogenic injury (e.g., post-surgical damage to the thoracic duct or retroperitoneal lymphatics), leading to direct leakage of chyle. * **D. Nephrotic Syndrome:** Though rare, it can cause chylous ascites due to increased lymphatic flow and bowel wall edema, which may lead to the leakage of lymph into the peritoneal cavity. **NEET-PG High-Yield Pearls:** * **Most common cause (Adults):** Lymphoma (Western world); Tuberculosis (Developing countries). * **Most common cause (Children):** Congenital lymphatic malformations. * **Diagnostic Hallmark:** Triglyceride level >200 mg/dL (often >110 mg/dL is used as a cutoff). * **Appearance:** Milky, turbid fluid that does not settle on standing.

Question 1

What is the earliest evidence of clubbing?

Accepted Answer

Softening of the nail bed

Answer

Increased anteroposterior diameter

Answer

Shininess of the nail

Answer

Increased transverse diameter

Question 2

A patient undergoing blood pressure testing reports an abnormal feeling in their fingertips followed by involuntary spasm of the fingers. What is the likely diagnosis?

Accepted Answer

Hypocalcemic tetany

Answer

Hysterical spasms

Answer

Pressure spasm of muscles due to neuropraxia

Answer

Ischemic muscle spasms

Question 3

Blood transfusion should be completed within how many hours of initiation?

Accepted Answer

1-4 hours

Answer

3-6 hours

Answer

4-8 hours

Answer

8-12 hours

Question 4

Which of the following electrolyte imbalances is most likely to cause paralytic ileus?

Accepted Answer

Hypokalemia

Answer

Hypoglycemia

Answer

Hyperkalemia

Answer

Hypercalcemia

Question 5

Which of the following is NOT used for the assessment of malnutrition?

Accepted Answer

None of the above

Answer

Creatinine-height index

Answer

Transferrin

Answer

Total lymphocyte count

Question 6

Systemic Inflammatory Response Syndrome (SIRS) includes all of the following criteria, EXCEPT:

Accepted Answer

Thrombocytopenia

Answer

Leukocytosis

Answer

Hyperthermia

Answer

Hypothermia

Question 7

Which of the following is the least likely complication after massive blood transfusion?

Accepted Answer

Metabolic Acidosis

Answer

Hyperkalemia

Answer

Citrate toxicity

Answer

Hypothermia

Question 8

Palmar erythema is seen in all of the following conditions except?

Accepted Answer

Anemia

Answer

Pregnancy

Answer

Cirrhosis

Answer

Wilson disease

Question 9

When the lateral border of the tongue shows indentation of teeth, what is this condition known as?

Accepted Answer

Crenated tongue

Answer

Cribriform tongue

Answer

Scrotal tongue

Answer

Roughened tongue

Question 10

Chylous ascites is caused by all of the following except:

Accepted Answer

Colloid carcinoma of stomach.

Answer

Tuberculosis

Answer

Trauma.

Answer

Nephrotic syndrome.

General Medicine — MCQs

General Medicine — MCQs

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