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:

Only a qualitative test will be ordered on the DeGowin Blood Center 
Requisition.  See "Fetal Erythrocyte Detection/Quantitation ".

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

Quantitative assay must be ordered on Flow Cytometry Requisition .

Test
Limitations:

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

Methodology:

Indicator cell rosette test for fetomaternal hemorrhage

Sample
Processing:

Invert tube gently several times to mix blood.
Label transport tube with patient last name, first name, identification 
number, date and time of collection.
Do Not Centrifuge.
Submit whole blood in original container.

Sample
Storage:

Room temperature or refrigerate if stored overnight.

Transport
Instructions:

Place requisition into outside pocket of bag.
Place specimen into zip-lock type bag, seal bag.
Place specimen into styrofoam container, seal container.
Ship at ambient temperature.

CPT Code:

86905