Specimen

Blood

Collection Medium:

Alternate
Collection Media:

Lavender top tube (EDTA)

Minimum:

2 ml; pink top; maternal specimen

Rejection Criteria:

Specimen must be labeled with patient's first and last name and medical 
record number.  Specimens will be rejected if information is not on the 
label when received.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Analytic Time:

2 hours (upon receipt in laboratory)

Reference Range:

Negative result means no abnormal amount of fetal red blood cells have
been detected in the maternal circulation.

Comments:

Fetal blood screening test will only be performed when fetus/infant has 
been typed as O-positive.

Quantitative assay will be automatically ordered if the screen is 
positive for patients.

Test
Limitations:

This testing is not appropriate to detect fetal bleed in Rh positive 
female.

Methodology:

Indicator cell rosette test for fetomaternal hemorrhage

CPT Code:

86905