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Laboratory Test Reference Guide

Laboratory Information

Test Name

CD4 lymphocyte count

External Price (excl. GST)



Specimen Collection

Adult Specimen

5 mL Heparin tube non gel (dark green)

Instructions for Referral to Waikato Lab

Aliquot Instructions

Must be analysed within 48 hours of collection

Aliquot Transport

Send at room temperature. Samples must arrive at Health Waikato Laboratories Monday - Friday (by 12 noon on Fridays).

Test Information



Test Availability

Mon - Fri, 0800 - 1630 excl. Public Holidays

Laboratory Turnaround Time

2 days


Flow Cytometry

Reference Interval

1050-4000 cells/uLĀ (adult)

Minimum Volume

1mL whole blood Heparin

Electronic Information

Registration Code


HL7Mapping Code