Microbial diagnostics · USMLE Step 1

A blood sample from a patient with suspected malaria is collected. What is the gold standard diagnostic test?

  1. Indirect ELISA
  2. Thick and thin blood smears
  3. PCR for Plasmodium species
  4. Rapid antigen detection test
Show answer and explanation

Correct answer: Thick and thin blood smears

Thick and thin smears allow visualization and species identification. They remain the gold standard despite rapid test availability.

Difficulty: Medium Question 11 of 20

Practice all 20 Microbial diagnostics questions

Keep practicing

More Microbial diagnostics questions