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HelpTest ID BLOD0978 Fetal Screen with Reflex to Fetaldex
Useful For
Detects D Positive fetal red cells in D Negative mothers.
Specimen Type/Requirements
Pink top (EDTA) tube - Whole Blood (preferred)
Lavender top (EDTA) tube - Whole Blood
Red top (Serum w/out gel) tube - Clotted Blood
Test is affected by gross hemolysis, lipemia and icterus.
Specimen Volume
| Preferred Volume | 7.0 mL |
|---|---|
| Minimum Volume | 3.0 mL |
Stability/Transport
| Room Temperature | Not Acceptable | |
|---|---|---|
| Refrigerated | 3 days | Preferred for transport |
| Frozen | Not Acceptable |
Performed Test Frequency
Monday through Sunday
Additional Information
If the infant’s red blood cells possess a weak D antigen, the test may not detect a feto-maternal hemorrhage exceeding 30 mL of whole blood.
Test will automatically reflex to Fetaldex on all positive results. However after 24 hours, test will not reflex to Fetaldex due to strict 24 hour stability for Fetaldex.
Methodology
Tube (Hemagglutionation)
Performing Lab
Sanford Laboratories Bismarck
CPT
85461