Prenatal Profile I With Hepatitis B Surface Antigen
Synonyms
- Prenatal B Super Profile + Diff + HBsAg
Test Includes
ABO grouping and Rh typing; antibody screen (includes ID and titer of all irregular antibodies detected); CBC with differential; HBsAg; rubella antibodies, IgG; syphilis serology (if positive, confirmation is performed by TP-PA at an additional charge)
Special Instructions
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.
Expected Turnaround Time
1 - 3 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Specimen Requirements
Specimen
Serum and whole blood
Container
Two gel-barrier tubes or two red-top tubes and two lavender-top (EDTA) tubes
Collection
Gently invert lavender-top tubes 8 to 10 times immediately to mix specimen with anticoagulant. Centrifuge serum tubes within 45 minutes of venipuncture. If red-top tube is used, transfer separated serum to a plastic transport tube.
Storage Instructions
Refrigerate serum tubes and one lavender-top (EDTA) tube. Lavender-top (EDTA) tube may be kept at room temperature for 24 hours.
Causes for Rejection
Hemolysis; clotted specimen; specimen diluted with IV fluid; tube not filled with minimum volume; improper labeling
Test Details
Use
Evaluate woman's health status in early pregnancy; evaluate for anemia, leukemia, reaction to inflammation and infections, peripheral blood cellular characteristics, state of hydration and dehydration, polycythemia, hemolytic disease of the newborn, and ABO incompatibilities
Methodology
See individual tests.
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