Preoperative and Postoperative Care Practice Questions

Q: What is true about secondary hemorrhage?

It usually occurs 7-14 days after surgery.. ### Explanation Hemorrhage is a critical postoperative complication categorized based on the timing of its occurrence. Understanding the pathophysiology behind each type is essential for NEET-PG. **1. Why Option A is Correct:** **Secondary hemorrhage** occurs due to **infection and sloughing** of the wall of a blood vessel. It typically manifests **7–14 days** after surgery. The delay corresponds to the time required for bacteria to multiply, cause local tissue necrosis, and erode the vessel wall or the thrombus within it. **2. Why the Other Options are Incorrect:** * **Option B (Elevated Blood Pressure):** This is the hallmark of **Reactionary hemorrhage**. It occurs within 24 hours (usually 4–6 hours) post-surgery as the patient recovers from anesthesia, and their blood pressure rises, "blowing off" clots from small unligated vessels. * **Option C (Slipping of a Ligature):** This causes **Primary hemorrhage**, which occurs at the time of surgery or immediately after due to technical failure (e.g., poor knot tying or missing a vessel). * **Option D (Venous Refilling):** Venous oozing is a form of primary hemorrhage and does not characterize the delayed, often severe arterial bleeding seen in secondary hemorrhage. **3. Clinical Pearls for NEET-PG:** * **Primary Hemorrhage:** Occurs during surgery (Technical error). * **Reactionary Hemorrhage:** Occurs within 24 hours (Rise in BP/Coughing/Restlessness). * **Secondary Hemorrhage:** Occurs 7–14 days later (**Infection** is the primary cause). * **Management:** Secondary hemorrhage is a surgical emergency. Treatment involves addressing the infection, fluid resuscitation, and often proximal ligation of the artery in healthy tissue, as the local site is too friable for suturing.

Q: A patient with ITP has a platelet count of 50,000 and is being planned for splenectomy. What is the best timing for platelet infusion in this patient?

After ligating the splenic artery. **Explanation:** In patients with Immune Thrombocytopenic Purpura (ITP), the pathophysiology involves the production of autoantibodies against platelets. The **spleen** is the primary site where these antibody-coated platelets are sequestered and destroyed by splenic macrophages. **Why Option C is correct:** The goal of platelet transfusion in ITP is to increase the circulating platelet count to ensure surgical hemostasis. If platelets are infused while the splenic circulation is intact, the spleen will rapidly sequester and destroy the newly transfused platelets, rendering the transfusion ineffective. By **ligating the splenic artery first**, the "trap" is effectively closed. Transfusing platelets after ligation ensures that the donor platelets remain in the systemic circulation to assist with hemostasis during the remainder of the procedure. **Why other options are incorrect:** * **Options A & B:** Transfusing before surgery or at the time of incision is futile because the hyperactive spleen will clear the donor platelets almost immediately, providing no benefit for the surgery and potentially wasting a scarce resource. * **Option D:** While transfusing after removal is physiologically sound, it is "too late." The most critical need for a higher platelet count is during the dissection and removal of the organ itself to prevent intraoperative hemorrhage. **High-Yield Clinical Pearls for NEET-PG:** * **Indications for Splenectomy in ITP:** Failure of medical management (steroids/IVIG), relapse, or contraindications to steroids. * **Platelet Threshold:** Splenectomy is generally safe without transfusion if platelets are >50,000/µL. Transfusion is reserved for counts <20,000/µL or active bleeding. * **Vaccination:** Always administer vaccines against encapsulated organisms (*S. pneumoniae, H. influenzae, N. meningitidis*) at least **2 weeks before** elective splenectomy.

Q: A post-operative cardiac surgical patient developed sudden hypotension, raised central venous pressure, and pulsus paradoxus at the 4th post-operative hour. What is the most probable diagnosis?

Cardiac tamponade. ### Explanation **Correct Answer: D. Cardiac tamponade** The clinical triad of **sudden hypotension**, **raised Central Venous Pressure (CVP)**, and **pulsus paradoxus** in a post-operative cardiac surgical patient is the classic presentation of **Cardiac Tamponade**. In the post-operative period, this usually occurs due to the accumulation of blood or clots in the pericardial or mediastinal space. This fluid exerts extrinsic pressure on the heart, restricting diastolic filling. The raised CVP reflects the heart's inability to accept venous return (diastolic collapse), while pulsus paradoxus (an exaggerated drop in systolic BP >10 mmHg during inspiration) occurs due to ventricular interdependence within a fixed space. **Analysis of Incorrect Options:** * **A. Excessive mediastinal bleeding:** While bleeding often precedes tamponade, simple hemorrhage without entrapment typically presents with **low CVP** (hypovolemia) rather than raised CVP. * **B. Ventricular dysfunction:** While this causes hypotension and raised CVP, it does not typically cause **pulsus paradoxus**, which is a hallmark of restrictive/pericardial pathology. * **C. Congestive cardiac failure:** This presents with raised CVP and hypotension, but it is usually a more gradual process and is accompanied by pulmonary edema (crackles) rather than the sudden obstructive signs seen here. **High-Yield Clinical Pearls for NEET-PG:** * **Beck’s Triad:** Hypotension, Jugular Venous Distension (raised CVP), and Muffled Heart Sounds. * **Kussmaul’s Sign:** A paradoxical rise in JVP on inspiration (more common in constrictive pericarditis but can be seen in tamponade). * **Echocardiography:** The gold standard for diagnosis (shows diastolic collapse of the Right Atrium/Right Ventricle). * **Management:** Immediate surgical re-exploration or pericardiocentesis. In post-cardiac surgery, "clotted" tamponade may require reopening the sternotomy.

Q: On the 7th post-operative day, an abdominal wound shows pink serosanguinous discharge. What does this suggest?

Impending wound dehiscence. ### Explanation **Correct Option: A. Impending wound dehiscence** The appearance of **pink, serosanguinous discharge** (often described as "salmon-colored" fluid) from an abdominal wound between the 5th and 10th postoperative days is the **pathognomonic sign** of impending wound dehiscence (burst abdomen). This fluid is actually peritoneal fluid leaking through a defect in the deep fascial layer that has already separated. While the skin may still appear intact, the discharge indicates that the underlying rectus sheath has given way, and evisceration may be imminent. **Analysis of Incorrect Options:** * **B. Infection in the abdomen:** Intra-abdominal infection or a wound infection typically presents with purulent discharge (pus), localized erythema, warmth, and systemic signs like fever and leucocytosis, rather than thin serosanguinous fluid. * **C. Stitch abscess:** This is a localized infection around a suture track. It presents as a small, painful pustule or boil at the suture site, not a profuse discharge of peritoneal fluid. * **D. Healing wound:** A normally healing wound should be dry or have minimal serous crusting by the 7th day. Active discharge of pink fluid is always pathological at this stage. **High-Yield Clinical Pearls for NEET-PG:** * **Timing:** Wound dehiscence most commonly occurs between **6 to 10 days** post-surgery. * **The "Gush" Sign:** Patients often report a sudden "gush" of fluid after coughing or straining. * **Management:** * **Immediate:** Cover the wound with sterile saline-soaked gauze. * **Definitive:** Urgent re-operation and secondary closure using **tension sutures** (interrupted heavy non-absorbable sutures). * **Risk Factors:** Malnutrition (hypoalbuminemia), Vitamin C deficiency, chronic cough, obesity, and emergency surgeries.

Q: Which of the following is NOT a proactive approach to prevent unnecessary stress in a surgical patient?

Prolonged bed rest. ### Explanation The goal of modern perioperative care, particularly under the **ERAS (Enhanced Recovery After Surgery)** protocols, is to minimize the surgical stress response and maintain physiological homeostasis. **Why "Prolonged bed rest" is the correct answer:** Prolonged bed rest is **detrimental** and considered a reactive, outdated practice. It increases the risk of several postoperative complications, including **Deep Vein Thrombosis (DVT)**, pulmonary embolism, atelectasis, pressure sores, and muscle atrophy. Proactive management emphasizes **early mobilization** (often within 24 hours) to stimulate gut motility, improve respiratory function, and reduce thromboembolic risks. **Analysis of Incorrect Options:** * **A. Minimal access techniques:** Laparoscopic or robotic surgeries reduce tissue trauma, leading to a decreased inflammatory cytokine response and less postoperative pain compared to open surgery. * **B. Nerve blocks:** Regional anesthesia (like epidurals or transversus abdominis plane blocks) provides superior analgesia and reduces the need for systemic opioids, which can cause ileus and respiratory depression. * **C. Minimal periods of starvation:** Modern guidelines advocate for "Carbohydrate Loading" (clear liquids up to 2 hours before surgery). This prevents insulin resistance, reduces thirst/anxiety, and maintains a metabolic "fed state." **High-Yield Clinical Pearls for NEET-PG:** * **ERAS Core Components:** Preoperative carbohydrate loading, no routine bowel prep, intraoperative fluid balance (euvolemia), and avoidance of routine drains/NG tubes. * **Surgical Stress Response:** Characterized by the release of catecholamines, cortisol, and glucagon, leading to a catabolic state and hyperglycemia. * **Early Mobilization:** The single most effective intervention to prevent postoperative pneumonia and DVT.

Question 1

What is true about secondary hemorrhage?

Accepted Answer

It usually occurs 7-14 days after surgery.

Answer

It is usually caused by elevated blood pressure.

Answer

It can occur due to slipping of a ligature.

Answer

It is due to venous refilling of blood.

Question 2

A patient with ITP has a platelet count of 50,000 and is being planned for splenectomy. What is the best timing for platelet infusion in this patient?

Accepted Answer

After ligating the splenic artery

Answer

2 hours before surgery

Answer

At the time of skin incision

Answer

Immediately after removal of spleen

Question 3

A post-operative cardiac surgical patient developed sudden hypotension, raised central venous pressure, and pulsus paradoxus at the 4th post-operative hour. What is the most probable diagnosis?

Accepted Answer

Cardiac tamponade

Answer

Excessive mediastinal bleeding

Answer

Ventricular dysfunction

Answer

Congestive cardiac failure

Question 4

On postoperative day 3, an otherwise healthy 55-year-old man recovering from a partial hepatectomy is noted to have scant serosanguineous drainage from his abdominal incision. His skin staples are removed, revealing a 1.0cm dehiscence of the upper midline abdominal fascia. Which of the following actions is most appropriate?

Accepted Answer

Placing an abdominal (Scultetus) binder

Answer

Removing all suture material and packing the wound with moist sterile gauze

Answer

Starting intravenous antibiotics

Answer

Prompt resuturing of the fascia in the operating room

Question 5

On the 7th post-operative day, an abdominal wound shows pink serosanguinous discharge. What does this suggest?

Accepted Answer

Impending wound dehiscence

Answer

Infection in the abdomen

Answer

Stitch abscess

Answer

Healing wound

Question 6

A 65-year-old man undergoes a technically difficult abdominal-perineal resection for a rectal cancer during which he receives 3 units of packed red blood cells. Four hours later, in the intensive care unit (ICU), he is bleeding heavily from his perineal wound. Emergency coagulation studies reveal normal prothrombin time, partial thromboplastin time, and bleeding times. The fibrin degradation products are not elevated, but the serum fibrinogen content is depressed and the platelet count is 70,000/mL. Which of the following is the most likely cause of his bleeding?

Accepted Answer

A bleeding blood vessel in the surgical field

Answer

Delayed blood transfusion reaction

Answer

Autoimmune fibrinolysis

Answer

Factor VIII deficiency

Question 7

All of the following are true about abdominal compartment syndrome except?

Accepted Answer

Grade III abdominal compartment syndrome is managed by hypovolemic resuscitation.

Answer

Characterized by increased peak inspiratory pressure and decreased urinary output.

Answer

Can lead to fatal complications due to pulmonary failure and mesenteric vascular compromise.

Answer

A urinary bladder catheter is the gold standard indirect method used to measure intra-abdominal pressure.

Question 8

All of the following are true about Enteral nutrition except:

Accepted Answer

Enteral nutrition is used in proximal small intestinal fistula.

Answer

Common techniques used for gastrostomy are Stamm, Witzel, and Janeway.

Answer

Jejunostomy is usually preferred over gastrostomy.

Answer

Jejunostomy is especially useful in severe pancreatitis.

Question 9

Which of the following is NOT a proactive approach to prevent unnecessary stress in a surgical patient?

Accepted Answer

Prolonged bed rest

Answer

Using minimal access techniques

Answer

Nerve blocks

Answer

Minimal periods of starvation

Question 10

All electrolyte abnormalities are seen in the immediate postoperative period, except:

Accepted Answer

Hyponatremia

Answer

Negative Nitrogen balance

Answer

Hypokalemia

Answer

Glucose intolerance

Preoperative and Postoperative Care — MCQs

Preoperative and Postoperative Care — MCQs

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