Laboratory Test Information Guide

Details for HIV - Viral Load

Test Name: HIV - Viral Load
Alternate Name(s): 
Laboratory: Microbiology
Specimen Type: 2 x 4 mL Lavender (EDTA) top Vacutainer tubes
Collection Information: Only available on patients known to be HIV positive.

Collect blood aseptically in Vacutainer tubes.

Ship immediately to Core Laboratory for processing.

Document collection time and date.
Requisition: HIV Viral Load Requisition
Test Schedule: Referred STAT weekdays to Public Health Laboratory
Turnaround time from when specimen
is received in testing laboratory:
14 days
Reference Range: See report
Effective Date: 2010-09-28
Revised Date: 2020-02-12
Critical Value:  
Interpretive Comments:  
Special Processing: Sample must be spun and separated within 4 hours of collection. Ship to Microbiology immediately. Off hours, specimen receiving staff must spin sample immediately and aliquot and freeze plasma.

Document time sample is separated on the requisition.
Comments: This is not a diagnostic test. Test is only available on patients known to be positive. Results are provided for prognostic purposes only and will be reported directly to physician.
Method of Analysis:  
Critical Information Required: A completed Public Health - HIV Viral Load Requisition must accompany sample.

Information must include:
-Collection time
-CD4 count
-Current viral therapy
-Time sample is separated (laboratory staff)
-Physician's name, phone number, address printed clearly on the requisition
Storage & Shipment: Spin and separate plasma from red blood cells. Plasma may be held at 4 degrees Celsius for up to 24 hours. Any delay over 24 hours and plasma must be frozen for shipment to Microbiology.
System Codes: 
Referred To: London Public Health Laboratory

Questions? Comments? Contact Laura Gopaul