INI-CET 2026 Practice Questions

Q: A trauma patient is evaluated using the GCS. The patient localizes to painful stimuli, produces incoherent sounds, and opens eyes only in response to pain. What is the total GCS score?

9. ***9*** - The Glasgow Coma Scale (**GCS**) is calculated based on three components: Eye opening, Verbal response, and Motor response. - This patient scores **2** for eye opening (to pain), **3** for verbal (incoherent sounds/inappropriate words), and **5** for motor (localizes to painful stimuli), totaling **9**. *6* - A score of 6 would imply a lower level of function, likely including **abnormal extension (decerebrate posturing)** or no motor response. - This contradicts the patient's ability to localize to pain, which is a higher-functioning motor response. *7* - A score of 7 is often cited as the threshold for **intubation** (GCS ≤ 8, "if 8, intubate"), but it does not match the clinical presentation provided. - Scoring a 7 would require a lower verbal or motor score, such as **non-specific sounds** (V2) or **withdrawal from pain** (M4). *8* - A score of 8 is the classic cutoff for severe traumatic brain injury and the indication for securing an airway. - This patient demonstrates a higher level of motor function (**localizing**) than is consistent with a score of 8.

Q: According to the American Association for the Surgery of Trauma (AAST) colon injury grading scale, how is a colonic laceration involving more than 50% of the bowel wall circumference without complete transection classified?

Grade III. ***Grade III*** - According to the AAST colon injury scale, a Grade III injury is defined as a colonic laceration encompassing greater than 50% of the bowel wall circumference, but short of complete transection. - This categorization is critical in trauma surgery for determining the necessity of more aggressive management strategies, such as resection, compared to simpler primary repair. *Grade II* - A Grade II colon injury is defined as a laceration involving 50% or less of the bowel circumference. - These injuries are generally associated with lower morbidity and often amenable to simple primary repair or stricture considerations. *Grade IV* - Grade IV injuries involve full-thickness transection of the colon. - This injury grade represents a higher level of tissue destruction requiring more complex management, usually involving formal resection rather than simple repair. *Grade V* - A Grade V injury pertains to a colon injury associated with **tissue loss** and **devascularization** of a colonic segment. - This is the most severe classification in the AAST scale and necessitates significant surgical intervention due to the compromised blood supply.

Q: A 60-year-old patient presents with pruritus and obstructive jaundice. Physical examination reveals a palpable, non-tender gallbladder. What is the most likely diagnosis?

Carcinoma of the head of the pancreas. ***Carcinoma of the head of the pancreas*** - This clinical presentation represents **Courvoisier's sign**, which is a palpable, non-tender gallbladder in the presence of painless obstructive jaundice, highly suggestive of a malignant obstruction of the common bile duct. - The most common malignancy causing this is a tumor in the **head of the pancreas**, which obstructs the distal common bile duct, leading to progressive jaundice. *Choledocholithiasis* - Typically presents with **biliary colic** (pain), as the obstruction is caused by a gallstone, which is generally painful due to acute inflammation and distension. - The gallbladder in choledocholithiasis is usually contracted or fibrotic due to chronic cholecystitis, making it **non-palpable**. *Cholangiocarcinoma* - While this can cause obstructive jaundice, it is less likely to present with a palpable, non-tender gallbladder than pancreatic head tumors unless it occurs in the distal common bile duct. - This diagnosis is statistically much **less common** than pancreatic cancer as a cause of Courvoisier's sign. *Gallbladder carcinoma* - While this may cause jaundice if it invades the biliary tree, it more commonly presents with a **fixed, hard, irregular mass** in the gallbladder fossa rather than a smooth, palpable, non-tender gallbladder. - Patients with gallbladder cancer often have a long history of **cholelithiasis** and chronic gallbladder disease, which typically leads to a scarred, non-palpable organ.

Q: According to ATLS guidelines, which of the following represents the correct sequence of steps in primary trauma management? Steps: a. Airway management with cervical spine protection b. Circulation with hemorrhage control c. Disability assessment d. Catastrophic bleeding control Which sequence is correct?

d → a → b → c. ***d → a → b → c*** - In the updated ATLS guidelines, the primary survey sequence begins with **catastrophic hemorrhage control (X)**, which involves identifying and stopping life-threatening external bleeding before moving to airway management. - Following hemorrhage control, the sequence proceeds to **Airway with cervical spine immobilization (A)**, **Breathing (B)**, **Circulation (C)**, and **Disability (D)**, prioritizing the most rapidly lethal injuries. *a → b → c → d* - This sequence follows the older ABCDE approach, which does not explicitly prioritize the immediate control of **catastrophic external hemorrhage** as the initial step. - It incorrectly suggests that circulation and disability assessment should precede the immediate life-saving intervention of controlling exsanguinating hemorrhage. *b → a → d → c* - This sequence incorrectly places circulation (B) before airway management (A), violating the fundamental principle of **Airway maintenance** being the highest priority due to the risk of rapid hypoxia. - Airway management must always precede active resuscitation measures like aggressive fluid administration for circulation. *d → b → a → c* - This sequence incorrectly positions circulation/hemorrhage control (b) before airway management (a), failing to prioritize the **airway assessment**. - Ensuring a patent airway is critical to prevent fatal complications and must occur after catastrophic bleeding control, but before generalized circulation management.

Q: A prostatic biopsy report reveals a Gleason score of 8 (4 + 4). What is the corresponding Grade Group classification of this tumor?

Grade Group 4. ***Grade Group 4*** - The current **Grade Group** system for prostate cancer consolidates Gleason scores into five groups; a **Gleason score of 8** corresponds directly to **Grade Group 4**. - The **International Society of Urological Pathology (ISUP)** developed this system to simplify prognosis and clinical decision-making based on biopsy specimens. *Grade Group 2* - This grade group refers to a **Gleason score of 3 + 4 = 7**. - It represents a **favorable intermediate-risk** tumor with 3 as the primary pattern. *Grade Group 3* - This classification corresponds to a **Gleason score of 4 + 3 = 7**. - It indicates a higher risk profile than Group 2, as the **predominant pattern is 4**. *Grade Group 5* - This group is assigned to **Gleason scores 9 and 10**. - It represents the most aggressive tumors with the highest potential for **distant metastasis** and poorer prognosis.

Q: A 55-year-old patient presents to the emergency department with abdominal pain, distension, and vomiting. Imaging confirms a diagnosis of cecal volvulus. Which of the following risk factors is responsible for 50-70% of cecal volvulus cases?

Previous abdominal surgery. ***Previous abdominal surgery*** - **Previous abdominal surgery** is the most common predisposing factor for cecal volvulus, as resulting **adhesions** create a fixed point around which the cecum can twist. - Between 50% and 70% of patients diagnosed with this condition have a history of prior operative procedures on the abdomen. *High-fiber diet* - While high fiber intake can influence bowel motility, it is not a primary established risk factor for the mechanical torsion seen in a volvulus. - Dietary factors are generally more associated with conditions like diverticulosis rather than volvulus formation. *Lactulose abuse* - Lactulose administration can cause bowel distension and gas but is not a recognized direct cause of anatomic volvulus. - It is typically used for hepatic encephalopathy or constipation and has no documented link to the high incidence rates requested. *Female sex* - While age and certain anatomical variations may correlate, female sex is not the causative risk factor responsible for the majority of cases. - Cecal volvulus is frequently associated with a congenital **hypermobile cecum** (lack of peritoneal attachment), which is an anatomical predisposition rather than gender-dependent.

Q: A 65-year-old male with diabetes mellitus presents with purulent rectal discharge and is diagnosed with fistula-in-ano. Surgical management is planned. Which of the following procedures is considered internal anal sphincter-preserving?

Fistulectomy. ***Fistulectomy*** - A **fistulectomy** involves the complete excision of the **fistula tract** from its internal to its external opening, sparing the surrounding healthy **anal sphincter complex** when performed correctly. - It is the traditional standard for simple, low-lying **fistulae-in-ano** where the sphincter muscle involvement is minimal or superficial, thus preserving continence. *LIFT (Ligation of Intersphincteric Fistula Tract)* - The **LIFT** procedure is specifically designed to isolate and ligate the fistula tract in the **intersphincteric plane**. - While it preserves the sphincter, it is distinct from a formal **fistulectomy** and is often used for complex or **transphincteric fistulas** to avoid sphincter division. *FiLaC (Fistula-tract Laser Closure)* - **FiLaC** is a minimally invasive, sphincter-sparing technique that uses a **radial laser probe** to destroy the epithelial lining of the fistula tract. - It promotes healing of the tract from the inside out without requiring the division or excision of the **anal sphincter** muscles. *VAAFT (Video-Assisted Anal Fistula Treatment)* - **VAAFT** utilizes an **endoscope** (fistuloscope) to visualize the tract and fulgurate it under direct vision. - This procedure allows for the identification of lateral tracts and abscess cavities while strictly preserving the **anal sphincter** integrity.

Q: Which of the following clinical features best distinguishes mechanical small bowel obstruction from paralytic ileus?

Colicky abdominal pain. ***Colicky abdominal pain*** - In **mechanical small bowel obstruction (SBO)**, the bowel proximal to the obstruction undergoes vigorous peristaltic contractions in an attempt to overcome the lumen blockage, resulting in characteristic **high-pitched** and periodic **colicky pain**. - Conversely, a **paralytic ileus** is marked by a complete cessation of peristaltic activity due to neurogenic or myogenic failure, resulting in an abdomen that is typically silent, without the peristaltic rushes that cause severe colicky pain. *Tachycardia* - **Tachycardia** is a non-specific sign and a common clinical finding in both **mechanical SBO** and **paralytic ileus**, often secondary to dehydration, electrolyte imbalances, or systemic distress. - Because it can occur in both conditions as a result of hypovolemia or metabolic disturbance, it does not serve as a reliable differentiating feature. *Vomiting* - **Vomiting** is a hallmark symptom of both conditions, occurring as bowel contents accumulate proximal to the obstruction or as the gut fails to propel contents forward in an ileus. - While the severity may vary based on the level of obstruction, it does not reliably distinguish between the two entities on its own. *Abdominal distension* - **Abdominal distension** is a generalized sign of both **SBO** and **paralytic ileus**, occurring as air and fluid accumulate within the non-propulsive or obstructed bowel segments. - It is a common clinical finding in any setting of bowel dysfunction and cannot be used to differentiate the mechanical cause from the functional motility failure of an ileus.

Q: A patient is planned for elective colon surgery. What is the ideal timing for administration of prophylactic parenteral antibiotics?

1 hour before skin incision. ***1 hour before skin incision*** - Administering prophylactic antibiotics within **60 minutes** prior to the initial incision ensures adequate **tissue concentration** at the time of potential bacterial contamination. - Giving the dose too early risks the drug level dropping before the surgery begins, while giving it too late fails to protect during the highest risk period. *30 minutes before surgery* - While this timing falls within the acceptable window, it is not the **optimal** or widely recommended target compared to the 60-minute benchmark. - Depending on the specific antibiotic (e.g., **vancomycin** or **fluoroquinolones**), 30 minutes may not be sufficient for full infusion prior to incision. *2 hours before surgery* - Administering antibiotics 2 hours preoperatively significantly increases the risk that peak **serum levels** will be missed during the critical window of contamination. - Prolonged time intervals prior to incision are associated with higher rates of **surgical site infections (SSIs)**. *4 hours before surgery* - This duration is far too early; the drug will likely be cleared or metabolized below the **minimum inhibitory concentration (MIC)** required to prevent infection by the time the incision is made. - Prolonged preoperative administration does not provide additional benefit and may contribute unnecessarily to **antibiotic resistance**.

Question 1

A trauma patient is evaluated using the GCS. The patient localizes to painful stimuli, produces
incoherent sounds, and opens eyes only in response to pain. What is the total GCS score?

Accepted Answer

9

Answer

6

Answer

7

Answer

8

Question 2

According to the American Association for the Surgery of Trauma (AAST) colon injury grading
scale, how is a colonic laceration involving more than 50% of the bowel wall circumference without
complete transection classified?

Accepted Answer

Grade III

Answer

Grade II

Answer

Grade IV

Answer

Grade V

Question 3

A 60-year-old patient presents with pruritus and obstructive jaundice. Physical examination
reveals a palpable, non-tender gallbladder. What is the most likely diagnosis?

Accepted Answer

Carcinoma of the head of the pancreas

Answer

Choledocholithiasis

Answer

Cholangiocarcinoma

Answer

Gallbladder carcinoma

Question 4

What is the fundamental surgical principle underlying TME in the operative management of
rectal cancer?

Accepted Answer

En bloc removal of the entire mesorectum as a single intact unit

Answer

Excision of only the peritumoral fat surrounding the tumor

Answer

Routine resection of the pelvic autonomic nerves

Answer

Ligation of the internal iliac artery

Question 5

According to ATLS guidelines, which of the following represents the correct sequence of steps
in primary trauma management?

Steps:
a. Airway management with cervical spine protection
b. Circulation with hemorrhage control
c. Disability assessment
d. Catastrophic bleeding control
Which sequence is correct?

Accepted Answer

d → a → b → c

Answer

a → b → c → d

Answer

b → a → d → c

Answer

d → b → a → c

Question 6

A prostatic biopsy report reveals a Gleason score of 8 (4 + 4). What is the corresponding Grade
Group classification of this tumor?

Accepted Answer

Grade Group 4

Answer

Grade Group 2

Answer

Grade Group 3

Answer

Grade Group 5

Question 7

A 55-year-old patient presents to the emergency department with abdominal pain, distension,
and vomiting. Imaging confirms a diagnosis of cecal volvulus. Which of the following risk factors is
responsible for 50-70% of cecal volvulus cases?

Accepted Answer

Previous abdominal surgery

Answer

High-fiber diet

Answer

Lactulose abuse

Answer

Female sex

Question 8

A 65-year-old male with diabetes mellitus presents with purulent rectal discharge and is
diagnosed with fistula-in-ano. Surgical management is planned. Which of the following procedures
is considered internal anal sphincter-preserving?

Accepted Answer

Fistulectomy

Answer

LIFT

Answer

FiLaC

Answer

VAAFT

Question 9

Which of the following clinical features best distinguishes mechanical small bowel obstruction
from paralytic ileus?

Accepted Answer

Colicky abdominal pain

Answer

Tachycardia

Answer

Vomiting

Answer

Abdominal distension

Question 10

A patient is planned for elective colon surgery. What is the ideal timing for administration of
prophylactic parenteral antibiotics?

Accepted Answer

1 hour before skin incision

Answer

30 minutes before surgery

Answer

2 hours before surgery

Answer

4 hours before surgery