Fetal Bleed Screen, Blood

Fetal Bleed Screen

Order Code:	FBST
Order Form:	DeGowin Blood Center Requisition

Specimen:

Blood

Collection Medium:

	or
Pink top tube	or	Lavender top tube 3 mL (EDTA)

Minimum:

2 mL; 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 has 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 Rh-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

Instructions:

If specimen is received in the laboratory greater than 24 hours from time of collection and has not been refrigerated, it will be rejected.

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