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HelpTest Code APT APT's Test for Fetal Haemoglobin
Laboratory Code
LAB3041048
Specimen Requirements
Submit only one of the following specimens
Specimen Type: Vomitus
Container/Tube: Sterile screw-capped container
Volume: 1.0 mL
Minimum Volume: 0.5 mL
Collection Instructions:
1. Specimen should be collected into plain sterile container.
2. Test should be run on freshly obtained specimen.
3. Send specimen to the laboratory immediately.
Specimen Type: Blood Stained Stool
Container/Tube: Sterile screw-capped container
Volume: 1.0 mL
Minimum Volume: 0.5 mL
Collection Instructions:
1. Specimen should be collected into plain sterile container.
2. Test should be run on freshly obtained specimen.
3. Send specimen to the laboratory immediately.
Specimen Type: Blood Stained Stool
Container/Tube: White Diaper
Collection Instructions:
1. Specimen should be collected on a white diaper or a substance where colour would not interfere with test results.
2. Test should be run on freshly obtained specimen.
3. Send specimen to the laboratory immediately.
Specimen Stability
| Specimen Type | Vomitus / Stool |
|---|---|
| Ambient | 8 hours (preferred) |
| Refrigerate | Not available |
| Frozen | Not available |
Methodology
Alkaline Hematin Method
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Brown or tarry stools | Reject |
|---|
Reference Interval
Negative for fetal blood
Testing Laboratory
National University Hospital
Haematology, 67725354
Useful For
Differentiation of gastrointestinal hameorrhage from the “swallowed blood syndrome” in newborn infants.
Service Code
12123
LOINC Code Information
40721-3
Alias
Alkali Denaturation Test
Foetal Haemoglobin
Update
Last updated 25/02/2025