Preoperative and Postoperative Care Practice Questions

Q: A patient after thyroid surgery presents with perioral paresthesia and a serum calcium level of 7 mg/dL. What is the most appropriate initial management?

Oral calcium supplement. ### Explanation **Correct Answer: D. Oral calcium supplement** **1. Why it is correct:** Post-thyroidectomy hypocalcemia occurs due to transient or permanent hypoparathyroidism (injury or devascularization of the parathyroid glands). This patient presents with **mild/asymptomatic hypocalcemia** (Calcium 7 mg/dL; normal: 8.5–10.5 mg/dL) and **mild symptoms** (perioral paresthesia). According to standard surgical protocols, patients who are hemodynamically stable and exhibiting only mild symptoms (paresthesia without tetany or ECG changes) should be managed initially with **oral calcium supplements** (usually 1–2g of elemental calcium three times daily). **2. Why other options are incorrect:** * **A & B (Vitamin D3):** While Vitamin D (Calcitriol) is often added to enhance calcium absorption, it is an adjunct. The immediate requirement is to replace the deficient calcium itself. Vitamin D alone will not correct the acute deficit quickly enough. * **C (Intravenous calcium gluconate):** IV calcium is reserved for **emergency/symptomatic management** of severe hypocalcemia (e.g., carpopedal spasm, tetany, seizures, or prolonged QTc interval on ECG). Giving IV calcium for mild symptoms increases the risk of cardiac arrhythmias and thrombophlebitis unnecessarily. **3. NEET-PG High-Yield Pearls:** * **Most common complication** of total thyroidectomy: Hypocalcemia (Transient in 20%, Permanent in <1%). * **Chvostek’s sign:** Tapping the facial nerve leads to twitching of facial muscles. * **Trousseau’s sign:** Carpal spasm induced by inflating a BP cuff above systolic pressure for 3 minutes (more sensitive than Chvostek’s). * **ECG finding:** Prolonged QT interval. * **Management Rule:** If Ca <7.5 mg/dL or symptomatic → Start Oral Calcium. If tetany/seizures occur → 10ml of 10% Calcium Gluconate IV over 10 minutes.

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: What is the most common metabolic complication following a gastrectomy?

Iron deficiency anemia. **Explanation:** Following a gastrectomy (total or subtotal), several metabolic derangements occur due to the loss of gastric reservoir function and altered anatomy. **1. Why Iron Deficiency Anemia (IDA) is the correct answer:** IDA is the **most common** metabolic complication, occurring in up to 50% of patients post-gastrectomy. Iron absorption primarily occurs in the duodenum and proximal jejunum. Gastrectomy leads to IDA through two main mechanisms: * **Loss of Gastric Acid (Achlorhydria):** Gastric acid is essential to convert dietary ferric iron ($Fe^{3+}$) into the more absorbable ferrous form ($Fe^{2+}$). * **Bypass of Duodenum:** In procedures like Billroth II, the primary site of iron absorption (the duodenum) is bypassed, significantly reducing uptake. **2. Analysis of Incorrect Options:** * **B. Megaloblastic Anemia:** Caused by Vitamin B12 deficiency due to the loss of Intrinsic Factor (produced by parietal cells). While classic, it takes 3–5 years to develop (due to large hepatic stores) and is statistically less frequent than IDA. * **C & D. Hypocalcemia and Osteoporosis:** These are "Bone Disease" complications. While common (up to 30%) due to Vitamin D malabsorption and bypass of the duodenum, they typically manifest later than IDA and occur with lower frequency. **NEET-PG High-Yield Pearls:** * **Most common overall complication:** Iron deficiency anemia. * **Early vs. Late:** IDA can appear within months; B12 deficiency takes years. * **Prophylaxis:** Patients with total gastrectomy require lifelong parenteral Vitamin B12 injections and oral iron/calcium supplementation. * **Dumping Syndrome:** This is a *functional* complication, whereas the question asks for *metabolic* complications.

Q: What is the most common complication after splenectomy?

Chest infection. **Explanation:** The most common complication following a splenectomy is **chest infection (atelectasis or pneumonia)**, particularly involving the left lower lobe. This occurs because the spleen is located directly beneath the left diaphragm. Surgical manipulation in this area leads to diaphragmatic irritation and splinting (reduced movement due to pain). Consequently, the patient avoids deep breathing and coughing, leading to basal atelectasis, which frequently progresses to pneumonia. **Analysis of Options:** * **A. Chest infection (Correct):** Pulmonary complications (atelectasis, pleural effusion, or pneumonia) are the most frequent postoperative issues, occurring in approximately 15-25% of cases. * **B. Hematemesis:** This is not a standard complication of splenectomy. While splenectomy is sometimes performed for portal hypertension, hematemesis usually results from esophageal varices, not the surgery itself. * **C. Subphrenic collection:** While a classic complication due to the potential space left in the left upper quadrant, it is less common than pulmonary issues. It usually presents with a swinging fever 7–10 days post-op. * **D. Acute dilation of stomach:** This can occur due to interference with the short gastric arteries or gastric manipulation, but it is a rare occurrence in modern surgical practice. **NEET-PG High-Yield Pearls:** 1. **Most common late complication:** Overwhelming Post-Splenectomy Infection (OPSI), most commonly caused by *Streptococcus pneumoniae*. 2. **Vaccination Protocol:** Patients should ideally be vaccinated 2 weeks **before** elective surgery or 2 weeks **after** emergency surgery against *S. pneumoniae*, *H. influenzae*, and *N. meningitidis*. 3. **Hematologic change:** Post-splenectomy, peripheral blood smears show **Howell-Jolly bodies**, Pappenheimer bodies, and Heinz bodies. Transient thrombocytosis is also common.

Q: Burst abdomen usually occurs on which postoperative day?

8th postoperative day. **Explanation:** **Burst Abdomen (Abdominal Wound Dehiscence)** refers to the partial or complete separation of the layers of a surgical wound. **1. Why the 8th Postoperative Day is Correct:** The timing of wound dehiscence is dictated by the biology of wound healing. Between the **6th and 10th postoperative days** (typically peaking on the **8th day**), the wound is in a critical transition phase. At this stage, the initial fibrin clot and inflammatory response have weakened, but the synthesis of new collagen (proliferative phase) has not yet gained sufficient tensile strength to withstand intra-abdominal pressure. This "lag period" makes the wound most vulnerable to mechanical failure. **2. Analysis of Incorrect Options:** * **3rd Postoperative Day (Option A):** Too early. At this stage, the wound is held together by primary sutures which still possess their maximum tensile strength. * **12th Postoperative Day (Option C):** By this time, collagen deposition is well underway, and the wound has regained enough strength to resist most common triggers of dehiscence. * **15th-18th Postoperative Day (Option D):** Late failure at this stage is more likely to result in an **incisional hernia** (where the skin remains intact but the fascia separates) rather than an acute "burst" abdomen. **3. Clinical Pearls for NEET-PG:** * **The "Pink Serous Discharge" Sign:** A serosanguinous (pinkish) discharge from the wound on the 5th or 6th day is a classic **pathognomonic precursor** to a burst abdomen. * **Most Common Cause:** Inadequate suturing technique (technical error) is the most common cause, followed by increased intra-abdominal pressure (coughing, vomiting, distension). * **Management:** Acute burst abdomen with evisceration is a surgical emergency requiring immediate coverage with sterile saline-soaked gauze and urgent **re-closure in the OR** using tension-band (interrupted) sutures.

Q: Which of the following is appropriate in the management of dumping syndrome?

Injection octreotide is the drug of choice.. **Explanation:** **Dumping Syndrome** occurs most commonly after gastric surgeries (like Billroth II or Roux-en-Y gastric bypass) due to the rapid emptying of hyperosmolar food boluses into the small intestine. **Why Option A is Correct:** **Injection Octreotide** (a long-acting somatostatin analogue) is considered the **pharmacological drug of choice** for refractory dumping syndrome. It works by inhibiting the release of insulin and various gastrointestinal hormones (like serotonin and VIP), slowing gastric emptying, and increasing small bowel transit time. This counteracts both the vasomotor symptoms and the late hypoglycemia. **Why the Other Options are Incorrect:** * **Option B:** Bulky meals should be avoided. Patients are advised to take **small, frequent meals** (6–8 times a day) to prevent overwhelming the small intestine with a large volume of chyme. * **Option C:** Oily/Fatty foods do not need to be avoided; in fact, a **high-protein, high-fat, and low-carbohydrate diet** is recommended. Fats and proteins slow gastric emptying, whereas simple carbohydrates exacerbate the osmotic shift. * **Option D:** Water/Fluids should **not** be taken with meals. Patients are advised to drink liquids at least 30–45 minutes before or after meals to prevent the "washing down" of food, which accelerates gastric emptying. **Clinical Pearls for NEET-PG:** * **Early Dumping:** Occurs 15–30 mins post-meals; due to **osmotic shift** of fluid into the gut lumen (causing distension and vasomotor collapse). * **Late Dumping:** Occurs 1–3 hours post-meals; due to **hyperinsulinemia** leading to reactive hypoglycemia. * **First-line Management:** Always **Dietary modification** (Dry, small, frequent, low-carb meals). * **Surgical Management:** Reserved for refractory cases; options include converting Billroth II to **Roux-en-Y reconstruction** (increases transit time).

Question 1

What is a primary benefit of enteric feeding compared to parenteral feeding?

Accepted Answer

Lower cost

Answer

Reduced morbidity

Answer

Preference in acute pancreatitis

Answer

Preservation of gastrointestinal function

Question 2

A patient after thyroid surgery presents with perioral paresthesia and a serum calcium level of 7 mg/dL. What is the most appropriate initial management?

Accepted Answer

Oral calcium supplement

Answer

Oral vitamin D3

Answer

Oral vitamin D3 with calcium

Answer

Intravenous calcium gluconate

Question 3

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 4

What is the most common metabolic complication following a gastrectomy?

Accepted Answer

Iron deficiency anemia

Answer

Megaloblastic anemia

Answer

Hypocalcemia

Answer

Osteoporosis

Question 5

What is the most common complication after splenectomy?

Accepted Answer

Chest infection

Answer

Hematemesis

Answer

Subphrenic collection

Answer

Acute dilation of stomach

Question 6

Burst abdomen usually occurs on which postoperative day?

Accepted Answer

8th postoperative day

Answer

3rd postoperative day

Answer

12th postoperative day

Answer

15th-18th postoperative day

Question 7

To prevent pressure ulcers, which intervention should be included in the plan of care?

Accepted Answer

Post a turning schedule at the patient's bedside.

Answer

Vigorously massage lotion into bony prominences.

Answer

Turn and re-position the patient at least once every 8 hours.

Answer

Slide the patient, rather than lifting, when turning.

Question 8

During surgical stress, which of the following is NOT seen?

Accepted Answer

Increased insulin

Answer

Increased ACTH

Answer

Increased norepinephrine

Answer

Increased GH

Question 9

Which of the following is appropriate in the management of dumping syndrome?

Accepted Answer

Injection octreotide is the drug of choice.

Answer

Bulky meals are taken.

Answer

Oily foods are avoided.

Answer

Water can be drunk with food.

Question 10

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

Preoperative and Postoperative Care — MCQs

Preoperative and Postoperative Care — MCQs

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