Postoperative Management — MCQs
A young girl hospitalised with anorexia nervosa is on treatment. Even after taking adequate food according to the recommended diet plan for last 1 week, there is no gain in weight. What is the next step in management:
Best guide for the management of Resuscitation is:
Which of the following is not a risk factor for postoperative pulmonary complication?
A patient who underwent sleeve gastrectomy on the 3rd postoperative day complains of fever. On examination, the patient is febrile, with a pulse rate of 110 beats per minute. The complete blood count shows leucocytosis. What is the next best step in managing this patient?
Following complete ileal and partial jejunal resection, the patient is most likely to have-
Post op pulmonary complications are seen/expected in all except:
What is true about carcinoma of the esophagus?
In patients with osteoarthritis of the knee joint, atrophy occurs most commonly in which muscle?
Regarding ectopia vesicae, which of the following statements is true except?
Which of the following is NOT a component of the Obesity Surgery-Mortality Risk Score (OS-MRS)?
Postoperative Management Indian Medical PG Practice Questions and MCQs
Question 1: A young girl hospitalised with anorexia nervosa is on treatment. Even after taking adequate food according to the recommended diet plan for last 1 week, there is no gain in weight. What is the next step in management:
- A. Increase the caloric intake from 1500 kcal to 2000 kcal per day
- B. Increase fluid intake
- C. Increase the dose of anxiolytics
- D. Observe patient for 2 hours after meal (Correct Answer)
Explanation: ***Observe patient for 2 hours after meal*** - Patients with **anorexia nervosa** often engage in compensatory behaviors like **purging** or extensive exercise, which would counteract the effects of increased caloric intake and lead to a lack of weight gain despite consuming an "adequate" diet. - Observing the patient post-meal helps identify these behaviors and ensures that the ingested calories are actually being retained and utilized for weight restoration. *Increase the caloric intake from 1500 kcal to 2000 kcal per day* - Increasing caloric intake is a valid long-term strategy but is not the immediate next step when there's **no weight gain despite adequate intake**; the primary concern is identifying *why* the initial intake isn't leading to weight gain. - Doing so without addressing potential compensatory behaviors might only increase patient distress or lead to more intense purging/exercise. *Increase fluid intake* - While adequate **hydration** is important, it does not directly address the issue of **lack of weight gain** in anorexia nervosa, which is fundamentally a caloric deficit problem. - Increased fluid intake would not provide the necessary calories for weight restoration. *Increase the dose of anxiolytics* - Anxiolytics may help manage **anxiety** related to eating, but they do not directly promote **weight gain** or prevent compensatory behaviors. - This step does not address the core issue of why the recommended diet is not leading to weight gain.
Question 2: Best guide for the management of Resuscitation is:
- A. Saturation of Oxygen
- B. CVP
- C. Blood pressure
- D. Urine output (Correct Answer)
Explanation: ***Urine output*** - **Urine output** is considered the **gold standard** for assessing adequacy of resuscitation as it directly reflects **end-organ perfusion** and **tissue oxygenation**. A target of **0.5-1 mL/kg/hour** indicates adequate renal perfusion and overall circulatory status. - It serves as a reliable **endpoint of resuscitation** in trauma and critical care protocols, providing objective evidence that fluid resuscitation has achieved adequate **tissue perfusion** and **microcirculatory flow**. *Saturation of Oxygen* - While **oxygen saturation** is crucial for ensuring adequate **oxygen delivery** to tissues, it represents only one component of the oxygen delivery equation and doesn't reflect **tissue perfusion** adequacy. - Maintaining normal oxygen saturation does not guarantee adequate **end-organ perfusion** if cardiac output or tissue perfusion is compromised during resuscitation. *CVP* - **Central venous pressure** has poor correlation with actual **intravascular volume status** and **cardiac preload**, making it an unreliable guide for fluid resuscitation. - CVP measurements are influenced by multiple factors including **ventilator settings**, **tricuspid valve function**, and **chest wall compliance**, limiting its utility as a resuscitation endpoint. *Blood pressure* - While **blood pressure** provides immediate feedback on **circulatory status** and is emphasized in current **ACLS** and **ATLS** protocols as an immediate target, it may not accurately reflect **microcirculatory perfusion**. - Blood pressure can be maintained through **vasoconstriction** while **end-organ perfusion** remains inadequate, making it less reliable than urine output for assessing true resuscitation adequacy.
Question 3: Which of the following is not a risk factor for postoperative pulmonary complication?
- A. Normal BMI (18.5-24.9) (Correct Answer)
- B. Age 25-40 years
- C. Upper abdominal surgery
- D. Patient with 20 pack years of smoking
Explanation: ***Patient with 20 pack years of smoking*** - This is a significant risk factor for postoperative pulmonary complications, as **chronic smoking** impairs lung function and mucociliary clearance. - Patients with a history of **20 pack-years or more** are at a substantially increased risk of developing atelectasis, pneumonia, and respiratory failure after surgery. *Normal BMI (18.5-24.9)* - A **normal BMI** is not considered a risk factor for postoperative pulmonary complications; instead, it is associated with a lower risk compared to obesity or underweight states. - Patients with a normal BMI generally have **better respiratory mechanics** and lung volumes, reducing their susceptibility to pulmonary issues. *Age 25-40 years* - This age range is generally associated with a **lower risk** of postoperative pulmonary complications compared to very young or elderly patients. - Younger adults typically have **better physiological reserves** and healthier lungs, contributing to a reduced incidence of respiratory problems post-surgery. *Upper abdominal surgery* - **Upper abdominal surgery** is a significant risk factor for postoperative pulmonary complications due to its proximity to the diaphragm. - It often leads to **diaphragmatic dysfunction**, reduced lung volumes, and increased pain, all of which predispose patients to atelectasis and pneumonia.
Question 4: A patient who underwent sleeve gastrectomy on the 3rd postoperative day complains of fever. On examination, the patient is febrile, with a pulse rate of 110 beats per minute. The complete blood count shows leucocytosis. What is the next best step in managing this patient?
- A. Re-exploration
- B. Broad spectrum antibiotics
- C. Abdominal USG to locate the septic focus
- D. CECT abdomen (Correct Answer)
Explanation: ***CECT abdomen*** - A **computed tomography (CT) scan** with contrast is the most sensitive and specific imaging modality to detect potential complications like a **leak, abscess**, or other **intra-abdominal pathology** following sleeve gastrectomy. - Given the patient's fever, tachycardia, and leukocytosis on the 3rd postoperative day, there is a strong suspicion of **sepsis** requiring prompt investigation to identify the source. *Broad spectrum antibiotics* - While antibiotics are important in managing potential infection, they are not the *next best step* without identifying the **source of infection**, as this patient is critically ill. - Starting antibiotics empirically without imaging could delay diagnosis of a surgically treatable complication like a **leak** or **abscess**. *Abdominal USG to locate the septic focus* - Abdominal ultrasound has **limited sensitivity** for detecting small leaks or deep-seated collections, especially in obese patients or with overlying bowel gas. - A **CT scan** provides superior anatomical detail and penetration compared to ultrasound for evaluating the surgical site. *Re-exploration* - **Re-exploration is a surgical intervention** and should only be considered after a definitive diagnosis, preferably guided by imaging like a **CECT abdomen**, indicating a need for surgical repair or drainage. - Performing re-exploration without imaging guidance could be an unnecessary and potentially harmful procedure if the diagnosis is incorrect or manageable non-surgically.
Question 5: Following complete ileal and partial jejunal resection, the patient is most likely to have-
- A. Constipation
- B. Gastric ulcer
- C. Folic acid deficiency
- D. Vitamin B12 Deficiency (Correct Answer)
Explanation: ***Vitamin B12 Deficiency*** - The **terminal ileum** is the primary site for **vitamin B12 absorption**, complexed with intrinsic factor [3]. Resection of this segment significantly impairs this process. - Patients with **ileal resection** are highly susceptible to developing **megaloblastic anemia** and neurological complications due to **vitamin B12 deficiency** [3]. *Constipation* - Complete ileal and partial jejunal resection is **more likely to cause diarrhea** rather than constipation, particularly due to malabsorption of bile salts and fats [2]. - **Bile salt malabsorption** in the colon often leads to secretory diarrhea [1]. *Gastric ulcer* - Gastric ulcers are typically associated with *Helicobacter pylori* infection or NSAID use, and are **not a direct consequence** of ileal and jejunal resection. - While short bowel syndrome can sometimes lead to increased gastric acid secretion, peptic ulcer formation is not the most likely or direct complication. *Folic acid deficiency* - **Folic acid** is primarily absorbed in the **jejunum**, and while partial jejunal resection occurred, complete ileal resection is less directly implicated in folate deficiency. - Other sections of the small intestine can often compensate for partial jejunal loss in folate absorption, making B12 deficiency a more immediate and severe concern after complete ileal resection.
Question 6: Post op pulmonary complications are seen/expected in all except:
- A. BMI>30 (Correct Answer)
- B. Upper abdominal surgery
- C. Patient with 7 pack years of smoking
- D. Age >70
Explanation: ***BMI>30*** - While high BMI (obesity) is generally a **risk factor** for many surgical complications, a BMI *above 30* is specifically listed as a risk factor for **postoperative pulmonary complications**, making this statement incorrect in the context of the question which asks for the *exception*. - **Obesity** can lead to reduced lung volumes, increased work of breathing, and a higher incidence of **obstructive sleep apnea**, all predisposing to pulmonary issues postoperatively. *Upper abdominal surgery* - **Upper abdominal surgery** is associated with a significantly increased risk of postoperative pulmonary complications due to proximity to the diaphragm and pain-induced shallow breathing. - This type of surgery can lead to **atelectasis**, **pneumonia**, and **respiratory failure** by impairing normal respiratory mechanics and cough reflex. *Patient with 7 pack years of smoking* - A history of **smoking**, even for 7 pack-years, is a well-established risk factor for postoperative pulmonary complications due to its detrimental effects on airway clearance and lung function. - Smoking causes **bronchial hyperreactivity**, **increased mucus production**, and impaired ciliary function, increasing the risk of **bronchitis**, **pneumonia**, and **atelectasis**. *Age >70* - **Advanced age**, particularly over 70 years, is a significant independent risk factor for postoperative pulmonary complications. - Older patients often have **decreased lung elasticity**, reduced respiratory muscle strength, and a higher prevalence of **comorbidities**, all contributing to impaired pulmonary reserve and increased susceptibility to complications.
Question 7: What is true about carcinoma of the esophagus?
- A. The most common site is the lower end.
- B. Both adenocarcinoma and squamous cell carcinoma occur. (Correct Answer)
- C. The commonest histology is adenocarcinoma.
- D. It is more common in females.
Explanation: **Explanation:** Carcinoma of the esophagus is a significant topic in surgical oncology. The correct answer is **Option B** because esophageal cancer primarily manifests in two distinct histological types: **Squamous Cell Carcinoma (SCC)** and **Adenocarcinoma (EAC)**. While their risk factors and primary locations differ, both are recognized as the major pathological variants of the disease. **Analysis of Options:** * **Option A & C:** Historically, SCC was the most common type globally and typically occurred in the **middle third** of the esophagus. However, in Western countries, the incidence of Adenocarcinoma (usually involving the **lower third**) is rising due to GERD and Barrett’s esophagus. Globally, SCC remains more prevalent, making "Adenocarcinoma" or "Lower end" incorrect as absolute "most common" statements without geographic context. * **Option D:** Esophageal cancer shows a strong **male predominance** (often 3:1 or higher), largely due to higher rates of smoking and alcohol consumption (for SCC) and central obesity/GERD (for EAC) in men. **High-Yield Clinical Pearls for NEET-PG:** * **Most common type (Worldwide/India):** Squamous Cell Carcinoma. * **Most common type (Western world):** Adenocarcinoma. * **Risk Factors:** SCC is associated with smoking, alcohol, and achalasia cardia; EAC is strongly linked to **Barrett’s Esophagus** (metaplasia). * **Investigation of Choice:** Upper GI Endoscopy with biopsy. * **Staging:** Contrast-enhanced CT (CECT) for distant spread; **Endoscopic Ultrasound (EUS)** is the most accurate for T and N staging. * **Lymphatic Spread:** The esophagus lacks a serosa, leading to early mediastinal spread.
Question 8: In patients with osteoarthritis of the knee joint, atrophy occurs most commonly in which muscle?
- A. Quadriceps only (Correct Answer)
- B. Hamstrings only
- C. Both quadriceps and hamstrings
- D. Gastrocnemius
Explanation: In patients with osteoarthritis (OA) of the knee, muscle atrophy is a hallmark clinical finding, and the **Quadriceps femoris** is the most commonly and severely affected muscle group. ### Why Quadriceps only is the correct answer: The primary mechanism is **Arthrogenic Muscle Inhibition (AMI)**. Pain, swelling, and joint laxity associated with OA trigger a presynaptic inhibition of the alpha-motoneurons supplying the quadriceps. This prevents the muscle from being fully activated, leading to disuse atrophy. The quadriceps (specifically the *Vastus Medialis Obliquus*) is highly sensitive to joint effusion; even a small amount of intra-articular fluid can inhibit its contraction. This creates a vicious cycle: weak quadriceps fail to absorb shock during gait, leading to increased joint loading and accelerated cartilage degeneration. ### Why other options are incorrect: * **Hamstrings only:** While hamstrings may show some weakness due to overall decreased activity, they do not undergo the same level of reflex inhibition as the extensors. In fact, hamstrings often become relatively "overactive" to stabilize the joint, which can lead to flexion contractures. * **Both quadriceps and hamstrings:** Although generalized limb wasting can occur in advanced stages, the atrophy is significantly disproportionate. The quadriceps waste earlier and more profoundly than the hamstrings. * **Gastrocnemius:** This muscle is primarily involved in ankle plantarflexion. While it crosses the knee joint, it is not the primary stabilizer affected by the neuro-mechanical changes of knee OA. ### High-Yield Clinical Pearls for NEET-PG: * **Vastus Medialis Obliquus (VMO):** This is the first component of the quadriceps to show visible wasting in knee pathologies. * **Quadriceps Lag:** A clinical sign where the patient can passively straighten the knee but cannot maintain active extension, often due to quadriceps weakness/atrophy. * **Management:** Strengthening the quadriceps is the most effective non-pharmacological intervention to reduce pain and improve function in knee OA.
Question 9: Regarding ectopia vesicae, which of the following statements is true except?
- A. Carcinoma of the bladder may occur.
- B. Ventral curvature of the penis is associated. (Correct Answer)
- C. Incontinence of urine is present.
- D. Visible ureterovesical efflux can be observed.
Explanation: **Explanation:** Ectopia vesicae (Bladder Exstrophy) is a complex congenital malformation resulting from a failure of the infra-umbilical abdominal wall and the anterior bladder wall to fuse. **Why Option B is the correct answer (The False Statement):** In ectopia vesicae, the penis is typically short and broad with a **dorsal curvature (chordee)**, not a ventral one. This is because the urethral groove is open on the dorsal surface (epispadias), and the corpora cavernosa are separated and divergent, pulling the penis upward toward the abdominal wall. **Analysis of other options:** * **Option A (True):** Chronic irritation and metaplasia of the exposed bladder mucosa significantly increase the risk of malignancy. The most common type is **Adenocarcinoma** (unlike the usual transitional cell carcinoma). * **Option C (True):** Since the bladder is open and the sphincteric mechanism is absent or malformed, there is no reservoir function, leading to continuous **total incontinence**. * **Option D (True):** Because the posterior bladder wall (trigone) is exposed to the exterior, the ureteric orifices are visible, and one can observe the rhythmic **efflux of urine** directly from them. **High-Yield Clinical Pearls for NEET-PG:** * **Associated Findings:** Widely separated pubic symphysis (diastasis), bifid clitoris in females, and indirect inguinal hernias. * **Malignancy Risk:** Adenocarcinoma is the classic association due to glandular metaplasia of the exposed transitional epithelium. * **Management:** Initial management involves keeping the bladder mucosa moist with non-adherent films. Definitive treatment is surgical (Functional bladder closure or urinary diversion). * **Epispadias:** Always associated with bladder exstrophy, whereas hypospadias (ventral opening) is not.
Question 10: Which of the following is NOT a component of the Obesity Surgery-Mortality Risk Score (OS-MRS)?
- A. Age > 45 years
- B. Type-2 Diabetes Mellitus (Correct Answer)
- C. Hypertension
- D. Male gender
Explanation: The **Obesity Surgery-Mortality Risk Score (OS-MRS)** is a validated clinical tool used to predict the risk of 90-day mortality following gastric bypass surgery. It categorizes patients into low (Class A), intermediate (Class B), and high-risk (Class C) groups. ### **Explanation of the Correct Answer** **Type-2 Diabetes Mellitus (Option B)** is the correct answer because it is **not** a component of the OS-MRS. While diabetes is a common comorbidity in bariatric patients and influences long-term metabolic outcomes, it has not been found to be an independent predictor of perioperative mortality in this specific scoring system. ### **Analysis of the OS-MRS Components** The OS-MRS consists of **five** specific clinical variables, each assigned 1 point: 1. **Age ≥ 45 years (Option A):** Older age is associated with decreased physiological reserve. 2. **Hypertension (Option C):** A marker of cardiovascular strain. 3. **Male Gender (Option D):** Men tend to have more android (visceral) fat, making surgery technically more challenging. 4. **BMI ≥ 50 kg/m²:** Extreme obesity increases the risk of surgical complications. 5. **Risk factors for Pulmonary Embolism (PE):** This includes a history of previous DVT/PE, presence of a Vena Cava filter, or signs of pulmonary hypertension/obstructive sleep apnea. ### **High-Yield Clinical Pearls for NEET-PG** * **Risk Stratification:** * **Class A (0-1 point):** Low risk (0.2% mortality) * **Class B (2-3 points):** Intermediate risk (1.1% mortality) * **Class C (4-5 points):** High risk (2.4% mortality) * **Most Common Cause of Death:** Historically, pulmonary embolism was the leading cause of death after bariatric surgery, followed by anastomotic leaks. * **Indications for Surgery:** Remember the updated IFSO/ASMBS 2022 guidelines: BMI ≥35 kg/m² regardless of comorbidities, or BMI 30–34.9 kg/m² with metabolic disease.
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