Kenya Medical Laboratory Tests

CRAG (Serum) Test in Kenya

Brief Description

This test is used to screen presence of Cryptococcus neoformans or Cryptococcus in diagnosis of concurrent cryptococcal meningitis. The test is mostly prescribed to AIDS patients


Not available

Patient Preparation

No special preparation needed

Sample Type


Sample volume

2 Ml (minimum 0.5 mL)

Sample collection Container

Red-top (plain"," non-serum separator) tube

Sample collection instructions

Serum should be centrifuged and aliquotted if testing is not done immediately.

Sample storage

Stable at 2-8ºC for 72 hours

Reference range


Results Turnaround

1-3 days after receipt of samples

Diseases / Diagnostic Indicators

Positive serum cryptococcal antigen test result is a confirmation of an active infection"," which presents with fever"," headache and pain around the neck region.