Preoperative and Postoperative Care Practice Questions

Q: A patient is advised to avoid strenuous activity following herniorrhaphy for what period?

None of the above. **Explanation:** The primary goal of postoperative care following a herniorrhaphy (inguinal hernia repair) is to prevent recurrence by allowing the surgical site and/or prosthetic mesh to integrate with the surrounding tissues. **Why "None of the above" is correct:** The standard clinical recommendation for avoiding strenuous activity (heavy lifting >5-10 kg, vigorous exercise, or manual labor) following a hernia repair is typically **4 to 6 weeks**. This timeframe corresponds to the physiological process of wound healing, where collagen deposition and remodeling reach sufficient tensile strength to withstand significant intra-abdominal pressure. Options A, B, and C provide timeframes that are far too short to ensure the integrity of the repair. **Analysis of Incorrect Options:** * **One day (A):** Patients are encouraged to ambulate within 24 hours to prevent DVT, but strenuous activity at this stage would likely lead to immediate suture failure or hematoma. * **One week (B):** At one week, the wound is in the early proliferative phase. Tensile strength is minimal, and the risk of recurrence remains very high. * **3 weeks (C):** While healing is well underway, the "critical period" for mesh integration and fascial strength is generally considered to be 6 weeks. Most surgeons advise waiting at least a month before returning to heavy labor. **Clinical Pearls for NEET-PG:** * **Early Ambulation:** Encouraged on Day 1 to reduce pulmonary complications and DVT risk. * **Driving:** Usually permitted after 1–2 weeks, provided the patient is no longer taking narcotic analgesics and can perform an emergency stop without pain. * **Laparoscopic vs. Open:** Recovery is often faster with laparoscopic (TEP/TAPP) repairs, but the restriction on heavy lifting remains similar to protect the mesh interface. * **Chronic Pain:** The most common long-term complication of herniorrhaphy is chronic inguinodynia (nerve entrapment), not recurrence.

Q: Which of the following vaccines is NOT typically given for post-splenectomy infection prophylaxis?

Escherichia coli. ### Explanation The spleen plays a critical role in filtering the blood and contains specialized macrophages and B-cells that are essential for clearing **encapsulated organisms**. Following a splenectomy, patients are at a lifelong increased risk of **Overwhelming Post-Splenectomy Infection (OPSI)**, which is characterized by rapid-onset sepsis with high mortality. **Why Escherichia coli is the correct answer:** While *E. coli* can cause sepsis, it is not a primary target for post-splenectomy prophylaxis. The risk in asplenic patients is specifically linked to organisms that require **splenic opsonization** for clearance. There is currently no routine vaccine for *E. coli* used in this clinical context, as it is not one of the "Big Three" encapsulated pathogens that dominate OPSI cases. **Why the other options are incorrect:** * **Streptococcus pneumoniae (Option A):** The most common cause of OPSI (responsible for ~50-90% of cases). Vaccination with both PCV13 and PPSV23 is mandatory. * **Haemophilus influenzae type b (Option B):** A major encapsulated pathogen that causes severe respiratory and systemic infections in asplenic individuals. * **Neisseria meningitidis (Option C):** Asplenic patients have a significantly higher risk of meningococcemia; therefore, the quadrivalent (MenACWY) and Serogroup B vaccines are indicated. **NEET-PG High-Yield Pearls:** * **The "Big Three":** Remember the mnemonic **"SHiN"** (*S. pneumoniae, H. influenzae, N. meningitidis*) for encapsulated organisms requiring vaccination. * **Timing of Vaccination:** * **Elective Splenectomy:** Administer vaccines at least **14 days before** surgery. * **Emergency Splenectomy:** Administer vaccines **14 days after** surgery (to avoid the period of post-surgical "immunological stun"). * **Other Risks:** Asplenic patients are also at increased risk for intraerythrocytic parasites like *Babesia* and *Plasmodium* (Malaria).

Q: Postoperative ileus is most commonly seen in which part of the gastrointestinal tract?

Colon. **Explanation:** Postoperative ileus (POI) is a transient impairment of gastrointestinal motility following abdominal surgery. The recovery of motility follows a predictable chronological sequence, and the **colon** is the correct answer because it is the last part of the GI tract to regain normal function. **Why Colon is Correct:** The duration of ileus varies by anatomical segment due to differences in intrinsic myogenic activity and autonomic innervation. While the entire GI tract is affected by the inhibitory sympathetic surge and inflammatory mediators post-surgery, the colon typically takes **48 to 72 hours** to recover. Because it remains quiescent the longest, it is the primary site where postoperative ileus is clinically manifested. **Why Other Options are Incorrect:** * **Stomach:** Gastric motility usually returns within **24 to 48 hours**. While delayed gastric emptying can occur, it is not the most common site for prolonged ileus. * **Ileum (Small Intestine):** The small intestine is the most resilient to surgical trauma, with motility typically returning within **0 to 24 hours** (often as early as 6 hours post-op). * **Duodenum:** Like the rest of the small bowel, the duodenum recovers rapidly and is rarely the cause of persistent postoperative ileus. **NEET-PG High-Yield Pearls:** * **Sequence of Recovery:** Small Intestine (fastest) → Stomach → Colon (slowest). * **Clinical Sign of Resolution:** The passage of flatus and the return of bowel sounds (though flatus is a more reliable indicator of colonic recovery). * **Management:** Early ambulation, use of NSAIDs (to reduce opioid requirements), and "Gum Chewing" (sham feeding) are proven to reduce the duration of POI. * **Electrolytes:** Hypokalemia is a common metabolic factor that exacerbates postoperative ileus.

Q: Nine days following splenectomy, a 13-year-old patient presents with fever and leukocytosis. The chest x-ray shows free air under the diaphragm. What is the most likely diagnosis?

Left colon perforation. **Explanation:** The correct diagnosis is **Left colon perforation**. During a splenectomy, the surgeon must mobilize the splenic flexure of the colon and divide the splenocolic ligament. If the colon is inadvertently injured or its blood supply is compromised during this maneuver, a delayed perforation can occur. The presence of **free air under the diaphragm** (pneumoperitoneum) 9 days post-surgery is a pathognomonic sign of a hollow viscus perforation. **Analysis of Options:** * **Left lower lobe pneumonia (A):** While it causes fever and leukocytosis, it would present with pulmonary infiltrates or effusion on X-ray, not free air under the diaphragm. * **Postsplenectomy sepsis (B):** Also known as OPSI (Overwhelming Post-Splenectomy Infection), this is a fulminant systemic infection (usually *S. pneumoniae*). While it presents with fever and high mortality, it does not cause pneumoperitoneum. * **Gastric wall ulcer (C):** While the short gastric arteries are ligated during splenectomy (potentially causing gastric wall ischemia), injury to the splenic flexure is a more common surgical complication leading to delayed perforation in this clinical context. **Clinical Pearls for NEET-PG:** * **Most common organ injured during splenectomy:** Pancreatic tail (leading to fistula) and the Splenic flexure of the colon. * **Pneumoperitoneum:** Always indicates a perforated hollow viscus (stomach, duodenum, or colon) unless proven otherwise in a post-operative setting where air should have normally resorbed (usually by day 5-7). * **OPSI Prevention:** Patients should receive vaccinations against *Streptococcus pneumoniae*, *Haemophilus influenzae* type b, and *Neisseria meningitidis* (ideally 2 weeks before elective surgery or 2 weeks after emergency surgery).

Q: According to the enhanced recovery program in colon surgeries, which of the following is true?

Avoidance of perioperative fluid overload. **Explanation:** The **Enhanced Recovery After Surgery (ERAS)** protocol is a multimodal perioperative care pathway designed to reduce the body's stress response to surgery, maintain physiological function, and accelerate recovery. **Why Option C is Correct:** **Avoidance of perioperative fluid overload** (Goal-Directed Fluid Therapy) is a cornerstone of ERAS. Excessive intravenous fluids lead to interstitial edema, which impairs tissue oxygenation, causes gut swelling (leading to postoperative ileus), and increases the risk of anastomotic breakdown. The goal is to maintain "euvolemia" and avoid both dehydration and fluid overload. **Analysis of Incorrect Options:** * **A. Bowel Preparation:** Routine mechanical bowel preparation (MBP) is no longer recommended for most colonic surgeries. It can cause dehydration and electrolyte imbalances without significantly reducing surgical site infections. * **B. Nil Per Oral (NPO):** ERAS discourages prolonged fasting. Current guidelines allow **clear liquids up to 2 hours** and solids up to 6 hours before anesthesia. Preoperative carbohydrate loading (maltodextrin drinks) is encouraged to reduce insulin resistance. * **D. Opioid Analgesia:** ERAS advocates for **Opioid-sparing analgesia** (Multimodal Analgesia). Opioids are avoided because they cause respiratory depression, nausea, and significantly delay the return of bowel function (postoperative ileus). **High-Yield Clinical Pearls for NEET-PG:** * **Key ERAS components:** Preoperative carbohydrate loading, Mid-thoracic epidural (for open surgery), early mobilization, and **early oral intake** (within 24 hours). * **Alvimopan:** A peripheral mu-opioid receptor antagonist sometimes used in ERAS to accelerate bowel recovery. * The primary goal of ERAS is to reduce **length of hospital stay** and **postoperative complications** without increasing readmission rates.

Question 1

A patient is advised to avoid strenuous activity following herniorrhaphy for what period?

Accepted Answer

None of the above

Answer

One day

Answer

One week

Answer

3 weeks

Question 2

Which of the following vaccines is NOT typically given for post-splenectomy infection prophylaxis?

Accepted Answer

Escherichia coli

Answer

Streptococcus pneumoniae

Answer

Haemophilus influenzae

Answer

Neisseria meningitidis

Question 3

Which of the following findings does not suggest postoperative infection?

Accepted Answer

Pitting edema

Answer

Increase in temperature

Answer

Swelling

Answer

Pain

Question 4

A 45-year-old woman undergoes an uneventful laparoscopic cholecystectomy, for which she receives one dose of cephalosporin. One week later, she returns to the emergency room with fever, nausea, and copious diarrhea and is suspected of having pseudomembranous colitis. She is afebrile and has no peritoneal signs on abdominal examination. She has a mild leukocytosis with a left shift. What is the appropriate initial management strategy?

Accepted Answer

Administration of oral metronidazole

Answer

Administration of an antidiarrheal agent

Answer

Exploratory laparotomy with left hemi-colectomy and colostomy

Answer

Exploratory laparotomy with subtotal abdominal colectomy and ileostomy

Question 5

A 60-kg, 53-year-old man with no significant medical problems undergoes lysis of adhesions for a small-bowel obstruction. Postoperatively, he has high nasogastric output and low urine output. What is the most appropriate management of his fluids?

Accepted Answer

Replacement of nasogastric tube losses with lactated Ringer in addition to maintenance fluids

Answer

Infusion of D5 0.45% normal saline at 100 mL/h

Answer

Infusion of D5 0.9% normal saline at 100 mL/h

Answer

Infusion of D5 lactated Ringer at 100 mL/h

Question 6

Postoperative ileus is most commonly seen in which part of the gastrointestinal tract?

Accepted Answer

Colon

Answer

Ileum

Answer

Duodenum

Answer

Stomach

Question 7

A 20-year-old 70kg man is put on fast perioperatively. 100gm of glucose is given per day as 5% dextrose solution. This is to:

Accepted Answer

Sustain cerebral energy metabolism

Answer

Meet daily calorie requirement

Answer

Meet daily fluid requirement

Answer

Sustain anabolic status

Question 8

Which of the following is not a method for providing enteral nutrition?

Accepted Answer

Peripherally inserted central catheter (PICC)

Answer

Percutaneous endoscopic gastrostomy (PEG)

Answer

Sip feeding

Answer

Nasojejunal tube

Question 9

Nine days following splenectomy, a 13-year-old patient presents with fever and leukocytosis. The chest x-ray shows free air under the diaphragm. What is the most likely diagnosis?

Accepted Answer

Left colon perforation

Answer

Left lower lobe pneumonia

Answer

Postsplenectomy sepsis

Answer

Gastric wall ulcer

Question 10

According to the enhanced recovery program in colon surgeries, which of the following is true?

Accepted Answer

Avoidance of perioperative fluid overload

Answer

Bowel preparation a day prior to surgery

Answer

Nil per oral from the night before surgery

Answer

Opioid analgesia preferred

Preoperative and Postoperative Care — MCQs

Preoperative and Postoperative Care — MCQs

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