FREE Bachelor of Medicine & Bachelor of Surgery MCQ Questions and Answers

Question 1

An 82-year-old woman presents with post-prandial dull abdomen pain that has been present for almost a year.
She dropped 25 pounds in the previous three months as a result of avoiding oral intake due to worsening discomfort symptoms.
Her symptoms have not improved after repeated normal upper endoscopies and long-term proton-pump inhibitor medication.
She underwent a laparoscopic cholecystectomy six months earlier for several tiny gallstones, which were discovered during a right upper quadrant ultrasound.
Four months ago, a colonoscopy revealed a solitary, fully excised pedunculated tubular adenoma.
A CT scan was conducted, and it reveals no indication of cancer (see below).
The patient is cachectic upon examination.
Her abdomen is soft and not painful to the touch, and no lumps are visible.
An analysis of the lab results reveals microcytic anemia and an albumin level of 2.4.
The most effective course of treatment for this patient would be:

Accepted Answer

Selective angiography

Answer

Total parenteral nutrition

Answer

High-dose megestrol acetate

Answer

Placement of a jejuna feeding tube

Question 2

A dental operation is being performed on a 45-year-old male who had a prosthetic aortic valve replaced five years prior. Given its better absorption, which preventive antibiotics are advised?

Accepted Answer

Oral amoxicillin

Answer

IV penicillin

Answer

IV Ampicillin

Answer

Oral Vancomycin

Question 3

A 73-year-old man who has a history of atrial fibrillation and hypertension appears with mid-abdominal pain that started out of nowhere. A little while afterwards, I had a black, liquid bowel movement. There are no signs of peritonitis on an abdominal exam. The patient does, however, have leukocytosis. He is brought into the surgery room to be examined. The ascending colon, cecum, and distal small bowel appear dark and purple. What will management do next?

Accepted Answer

Revascularization followed by bowel resection

Answer

Warm the bowel and re-evaluate in 24 hours

Answer

Systemic heparinization

Answer

Bowel resection and anastomosis

Question 4

A 59-year-old man who has a slight fullness behind his right knee but no pain or restrictions in knee motion presents. He smokes 30 packs a year, consumes 1 to 2 beers socially each year, and takes hydrochlorothiazide to control his hypertension. He was examined because of a noticeable popliteal pulse, and duplex ultrasonography revealed a 3.4 cm popliteal aneurysm. His left lower extremity pulses are normal, as are the femoral and distal pulses on his right leg. The best course of action for management would be:

Accepted Answer

Abdominal ultrasound

Answer

Open aneurysmal exclusion with bypass

Answer

Surveillance duplex ultrasonography in 1 year

Answer

Endovascular popliteal artery stent placement

Question 5

What pulmonary function test is the most effective at predicting postoperative performance when lobectomy is being considered?

Accepted Answer

Predicted postoperative forced expiratory volume (FEV) in 1 second (FEV1)

Answer

Quantitative radionucleotide perfusion scanning

Answer

Gas exchange functions, such as DLCO (diffusion of carbon monoxide in the lung)

Answer

Plain chest roentgenogram

Question 6

Which of the following statements about the lymphatic drainage of the lungs is true?

Accepted Answer

Flow of lymph from the left lower lobe may drain to the right mediastinal (paratracheal) lymph nodes

Answer

The upper 2/3 of each lung drains to the hilum, while the bottom 1/3 drains below the diaphragm

Answer

The thymus gland drains the anterior portions of both lungs

Answer

The thoracic duct picks up tributaries along its route through the mediastinum, providing most of the drainage of the left lung

Question 7

Which of the following statements about a tumor marker and the malignancy it is typically linked with is true?

Accepted Answer

CA 19-9 and pancreatic cancer

Answer

Carcinoembryonic antigen (CEA) and melanoma

Answer

Alpha-fetoprotein and brain tumors

Answer

CA 125 and thyroid cancer