Substance use: ketamine misuse: practice question

A Psychiatry 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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Psychiatry · Substance use: ketamine misuse

Sample item

A 24-year-old who frequently uses ketamine at parties for months has urinary frequency, urgency and suprapubic pain with blood in the urine. Cultures are sterile. What is the cause?

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

The answer and the reasoning

B. Ketamine-induced cystitis

Chronic ketamine use damages the bladder, causing a contracted painful bladder, haematuria and sometimes hydronephrosis, with sterile urine. Stopping the drug is the first step in management.

Option by option

  • A. Bladder carcinoma

    Bladder carcinoma is rare at this age and is not the usual result of ketamine use.

  • B. Ketamine-induced cystitis (correct)

    Correct. Chronic ketamine use causes sterile inflammatory cystitis.

  • C. Schistosomal cystitis

    Schistosomal cystitis follows exposure to freshwater in endemic areas.

  • D. Urinary tuberculosis

    Urinary tuberculosis causes sterile pyuria but is not linked to ketamine use.

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.

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Questions about this Psychiatry question

What is the answer to this Psychiatry question?

The best answer is B, Ketamine-induced cystitis. Chronic ketamine use damages the bladder, causing a contracted painful bladder, haematuria and sometimes hydronephrosis, with sterile urine.

Why is "Bladder carcinoma" not the answer?

Bladder carcinoma is rare at this age and is not the usual result of ketamine use.

Why is "Schistosomal cystitis" not the answer?

Schistosomal cystitis follows exposure to freshwater in endemic areas.

Why is "Urinary tuberculosis" not the answer?

Urinary tuberculosis causes sterile pyuria but is not linked to ketamine use.

What concept does this question test?

It tests Substance use: ketamine misuse in Psychiatry. Stopping the drug is the first step in management.

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 Substance use: ketamine misuse?

Learn each diagnosis by its core features and its first-line treatment. Then use the flashcards and the other Psychiatry 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.