Free AS-C Practice Questions

Question 1

Before clipping during laparoscopic cholecystectomy, the team confirms that the hepatocystic triangle is cleared of fat and fibrous tissue, the lower third of the gallbladder is separated from the liver, and only two structures enter the gallbladder. A colleague proposes dissecting around the common bile duct to complete the critical view of safety. How should the first assistant respond?

Accepted Answer

Explain that the three criteria are met; no further common bile duct dissection is required.

Answer

Agree to pause clipping, because circumferential exposure of the common bile duct is another required criterion.

Answer

Recommend complete separation of the gallbladder from the liver before either of the two structures is clipped.

Answer

Recommend tracing the artery to its right hepatic origin before considering the critical view complete.

Question 2

A small lateral-wall injury to the inferior vena cava is temporarily controlled with pressure. For the repair, the surgeon requests a clamp that can isolate the injured sidewall while preserving flow through the remaining lumen. What should be passed?

Accepted Answer

Satinsky side-biting clamp

Answer

Straight aortic cross-clamp

Answer

Bulldog vascular clamp

Answer

Circumferential vessel loop

Question 3

A 132-kg adult with normal renal function is undergoing a prolonged operation with cefazolin prophylaxis. Administration of the preoperative dose began at 06:40, and incision occurred at 07:05. Blood loss has been minimal. Under the ASHP/IDSA/SIS/SHEA surgical prophylaxis recommendations, which initial dose and scheduled intraoperative redosing time are appropriate?

Accepted Answer

3 g IV initially; scheduled redose at 10:40

Answer

2 g IV initially; scheduled redose at 10:40

Answer

3 g IV initially; scheduled redose at 11:05

Answer

2 g IV initially; scheduled redose at 11:05

Question 4

During elective repair of an incisional hernia, an inadvertent small-bowel enterotomy causes gross enteric spillage. There was no infection or bowel perforation before the operation. The injury is repaired and the field irrigated. Which wound class describes the procedure as completed?

Accepted Answer

Class III - Contaminated

Answer

Class I - Clean

Answer

Class II - Clean-contaminated

Answer

Class IV - Dirty/infected

Question 5

MRI for a patient awaiting lumbar discectomy shows a left paracentral L4-L5 disc herniation compressing the traversing nerve root. Which preoperative motor finding would fit that lesion?

Accepted Answer

Weakness when extending the left great toe against resistance

Answer

Weakness when extending the left knee against resistance

Answer

Weakness when drawing the left thigh toward the midline

Answer

Weakness when pushing down through the left forefoot

Question 6

After a Jackson-Pratt drain is emptied, its stopper is replaced with the bulb fully expanded. The patient is comfortable, the wound is not swollen, and the tubing is connected without kinks. The orders include routine bulb-emptying and suction maintenance. The appropriate correction is to:

Accepted Answer

Open the stopper, compress the bulb, and reseal it while compressed.

Answer

Keep the bulb upright and wait for gravity drainage before changing the system.

Answer

Leave the system untouched and request an urgent surgical review for presumed obstruction.

Answer

Milk the tubing repeatedly to remove a presumed clot before resetting the reservoir.

Question 7

Twenty minutes after succinylcholine administration and the start of a volatile anesthetic, end-tidal carbon dioxide rises from 36 to 70 mmHg despite increased ventilation. The patient develops generalized rigidity and tachycardia; core temperature is 37.3°C. Anesthesia is initiating the crisis response and asks the assistant to bring the medication that treats the underlying process. Which medication is needed?

Accepted Answer

Dantrolene

Answer

20% lipid emulsion

Answer

Naloxone

Answer

Epinephrine

Question 8

During an operation on a 20-kg child, anesthesia is using 75 mL/kg to estimate circulating blood volume. The suction canister contains 600 mL, including 330 mL of measured irrigation recovered in that canister. There are no other fluid contributions or unmeasured blood losses. Hemoglobin drawn immediately after the bleeding is unchanged from baseline. Which report best characterizes the loss?

Accepted Answer

Estimated loss is 18% of circulating volume; the unchanged early hemoglobin does not exclude clinically important loss.

Answer

Estimated loss is 40% of circulating volume; the early hemoglobin may understate the blood loss.

Answer

Estimated loss is 22% of circulating volume; the early hemoglobin may understate the blood loss.

Answer

Estimated loss is 18% of circulating volume; the unchanged hemoglobin makes clinically important loss unlikely.

Question 9

The uterine-artery pedicle is being isolated near the cervix during abdominal hysterectomy. Which structure passes beneath the artery at this location and must be protected before clamping and ligation?

Accepted Answer

Ureter

Answer

Round ligament of the uterus

Answer

Ovarian artery

Answer

Utero-ovarian ligament

Question 10

The surgeon divides an excised lymph node into two separately labeled portions: one for tissue culture and one for immediate frozen-section examination. Both laboratories are ready to receive their specimens. Which handling plan preserves the intended tests?

Accepted Answer

Send both portions fresh and unfixed, separately packaged as required by their receiving laboratories.

Answer

Place the culture portion in formalin and send the frozen-section portion fresh and unfixed.

Answer

Send the culture portion fresh in a sterile container and place the frozen-section portion in formalin.

Answer

Place both portions in formalin, keeping the specimens in separate, correctly labeled containers.

Free AS-C Practice Questions

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