Chapter·SurgeryMinimally Invasive Surgery

Conversion to open surgery criteriaDownloads

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Sample Questions

1

A 34-year-old patient presents with severe pain in the right upper quadrant that radiates to the right shoulder. During laparoscopic cholecystectomy, which of the following anatomical spaces must be carefully identified to prevent bile duct injury?

AForamen of Winslow

BLesser sac

CCalot's triangle

DMorrison's pouch

2

A 63-year-old woman is brought to the emergency department because of severe abdominal pain and vomiting for 3 hours. She had previous episodes of abdominal pain that lasted for 10–15 minutes and resolved with antacids. She lives with her daughter and grandchildren. She divorced her husband last year. She is alert and oriented. Her temperature is 37.3°C (99.1°F), pulse is 134/min, and blood pressure is 90/70 mm Hg. The abdomen is rigid and diffusely tender. Guarding and rebound tenderness are present. Rectal examination shows a collapsed rectum. Infusion of 0.9% saline is begun and a CT of the abdomen shows intestinal perforation. The surgeon discusses the need for emergent exploratory laparotomy with the patient and she agrees to it. Written informed consent is obtained. While in the holding area awaiting emergent transport to the operating room, she calls for the surgeon and informs him that she no longer wants the surgery. He explains the risks of not performing the surgery to her and she indicates she understands but is adamant about not proceeding with surgery. Which of the following is the most appropriate next step in management?

AConsult hospital ethics committee

BObtain consent from the patient's daughter

CObtain consent from the patient's ex-husband

DContinue with emergency life-saving surgery

ECancel the surgery

3

An epidemiologist is evaluating the efficacy of Noxbinle in preventing HCC deaths at the population level. A clinical trial shows that over 5 years, the mortality rate from HCC was 25% in the control group and 15% in patients treated with Noxbinle 100 mg daily. Based on this data, how many patients need to be treated with Noxbinle 100 mg to prevent, on average, one death from HCC?

A20

B73

C10

D50

E100

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