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HelpTest Code PNH Flow Cytometry - PNH
Laboratory Code
LAB1128
Specimen Requirements
Specimen Type: Whole Blood
Container/Tube: Lavender Top (EDTA)
Preferred Volume: 3.0 mL
Minimum Volume: 1.0 mL
Collection Instructions: Specimen must be sent to the lab immediately upon collection on Monday - Friday (excluding Public Holiday) AND reach the lab by 12pm on Friday and Public Holiday eve.
Specimen Stability
| Sample Type | Whole Blood |
|---|---|
| Ambient (within 24 hours from collection) | 24 hours |
| Refrigerated (after 24 hours from collection) | 48 hours |
| Frozen | Not available |
Methodology
Flow Cytometry
Days and Times Performed
Monday through Friday (excluding Public Holiday). TAT 7 -9 days
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others: Clotted or insufficient specimen | Reject |
Reference Interval
See laboratory report
Testing Laboratory
National University Hospital
Flow Cytometry, 67724016
Useful For
This test aids in diagnosis and monitoring of paroxysmal nocturnal haemoglobinuria
Service Code
12178
Update
Last updated 24/11/2025
Test Info
Pre-arrange with Haematology before ordering the test.
This laboratory test has undergone in-house evaluation with appropriate quality assurance and control measures in line with laboratory best practice and accreditation requirements.
Reagent(s) used in this test is/are ordered through HSA’s Special Access Route, which provides interim access without full registration.