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CSF GRAM STAIN PLUS CULTURE

22002703

Synonym(s):
Lab Section Category
Specimen Collection

Cerebrospinal fluid, Brain abscess, VP shunt

Storage/Transport

• Specimen should reach the Microbiology Laboratory within 2 hours of collection.
• If delay in transportation cannot be avoided, please keep specimens at room temperature.

Methodology

Gram stain and Culture

Test Result

Gram stain
“No organisms seen” or descriptive report of observations.

Culture
Negative:
“No bacterial growth”

Positive:
Identification of probable pathogen(s) 

Turnaround Time

Negative: 2 – 4 Days

Positive: 3 – 5 Days*
*Depending on the number and type of organism(s) isolated

Day(s) Test Set Up

Daily 

Additional Information

Please do not share other test(s) with the same specimen.

Sample Rejection

Refer to General Specimen / Collection Guide

Last Updated - 30 May 2025