Abdomen and pelvis: practice question

A Anatomy question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Anatomy · Abdomen and pelvis

Sample item

A child has painless rectal bleeding and a technetium scan shows uptake in the right lower abdomen. Which rule describes the usual location and frequency of this anomaly?

ASix feet from the ileocaecal valve, six inches long, in 6 percentBTwo feet from the ileocaecal valve, two inches long, in 2 percentCLocated near the appendix base and 10 cm longDTwo metres from the duodenojejunal flexure and 2 cm long

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Two feet from the ileocaecal valve, two inches long, in 2 percent

A Meckel diverticulum is the remnant of the vitellointestinal duct on the antimesenteric border of the ileum, about 2 feet from the ileocaecal valve, 2 inches long, present in 2 percent. Ectopic gastric mucosa causes bleeding.

Option by option

A. Six feet from the ileocaecal valve, six inches long, in 6 percent
The numbers six are not the classic description of the anomaly.
B. Two feet from the ileocaecal valve, two inches long, in 2 percent (correct)
Correct. This is the classic rule of twos.
C. Located near the appendix base and 10 cm long
The diverticulum is on the ileum, not near the appendix base.
D. Two metres from the duodenojejunal flexure and 2 cm long
The duodenojejunal flexure is a proximal landmark, not the reference for this anomaly.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

Questions about this Anatomy question

What is the answer to this Anatomy question?

The best answer is B, Two feet from the ileocaecal valve, two inches long, in 2 percent. A Meckel diverticulum is the remnant of the vitellointestinal duct on the antimesenteric border of the ileum, about 2 feet from the ileocaecal valve, 2 inches long, present in 2 percent.

Why is "Six feet from the ileocaecal valve, six inches long, in 6 percent" not the answer?

The numbers six are not the classic description of the anomaly.

Why is "Located near the appendix base and 10 cm long" not the answer?

The diverticulum is on the ileum, not near the appendix base.

Why is "Two metres from the duodenojejunal flexure and 2 cm long" not the answer?

The duodenojejunal flexure is a proximal landmark, not the reference for this anomaly.

What concept does this question test?

It tests Abdomen and pelvis in Anatomy. Ectopic gastric mucosa causes bleeding.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Abdomen and pelvis?

Learn every nerve by its route, its muscles and what a lesion looks like at the bedside. That one habit answers a large share of questions. Then use the flashcards and the other Anatomy questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.