MBBS Surgery and Clinical Medicine 2

Question 1

The 'Rule of Nines' is used in burns assessment — what percentage of body surface area does the anterior trunk represent?

Accepted Answer

18%

Answer

In the Rule of Nines, the anterior trunk accounts for 18% of total body surface area (TBSA), equal to the posterior trunk.

Question 2

Which scoring system is used to assess the severity of acute pancreatitis at 48 hours?

Accepted Answer

Ranson's criteria

Answer

Ranson's criteria evaluate 5 parameters at admission and 6 more at 48 hours; a score ≥3 indicates severe pancreatitis with increased morbidity and mortality.

Question 3

What is the most common cause of small bowel obstruction in adults?

Accepted Answer

Adhesions from previous surgery

Answer

Post-operative intraperitoneal adhesions account for approximately 60–75% of all small bowel obstruction cases in adults.

Question 4

Which nerve is at greatest risk during a thyroidectomy due to its proximity to the inferior thyroid artery?

Accepted Answer

Recurrent laryngeal nerve

Answer

The recurrent laryngeal nerve runs close to the inferior thyroid artery and the tracheo-esophageal groove; injury causes hoarseness or vocal cord paralysis.

Question 5

A patient presents with acute limb ischemia — which of the 6 Ps is NOT part of the classic presentation?

Accepted Answer

Pruritus

Answer

The 6 Ps of acute limb ischemia are: Pain, Pallor, Pulselessness, Paresthesia, Paralysis, and Perishing cold (poikilothermia) — pruritus is not included.

MBBS - Bachelor of Medicine and Bachelor of Surgery Practice Test

MBBS - Bachelor of Medicine and Bachelor of Surgery Practice Test

MBBS Surgery and Clinical Medicine 2