Fetal Erythrocyte Detection/Quantitation, Peripheral Blood (maternal)

Fetal Erythrocyte Detection/Quantitation

Order Code:	FHGB
Epic Lab Code:	LAB292
Order Form:	A-1a Immunopathology or Epic Req

Flow Cytometry Service
6240 RCP
Flow Cytometry Resident: 467-6008
Flow Cytometry Lab: 467-6009
Tube Station #260

Specimen:

Peripheral Blood (maternal)

Collection Medium:

Lavender top tube 3 mL (EDTA)

Minimum:

1 mL whole blood

Delivery Instructions:

Deliver to laboratory immediately after collection. Refrigerate at 2-8°C. Send to tube station #260 or deliver to Specimen Control, 6240 RCP.

Testing Schedule:

0800-1630 Monday through Friday. For additional services, contact Clinical Pathology Resident on-call at pager #3404.

Analytic Time:

24 hours (upon receipt in laboratory)

Reference Range:

Reference range is less than 0.45% Positive specimens reported as percent of maternal cells. Note: This reference range is established as the level at which greater than the usual 300 micrograms dose administered to Rh-negative women at delivery is required to prevent sensitization. The normal "Hemoglobin F value" for non-pregnant adults is less than 0.1%.

Comments:

Please identify as MATERNAL or FETAL specimen. Screening test for fetal-maternal bleed. This test replaces the Kleihauer-Betke stain.

Methodology:

Flow Cytometry

CPT Code:

88184

See Additional Information:
Specimens Requiring Immediate Delivery