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Test Code Rhogam Rhogam Workup (HCLL)

Test Order Code

LAB1232329

Methodology

ABO/Rh and Fetalscreen. Fetalscreen is done by Rosette test and is used to detect Rh positive baby red cells in an Rh-negative mother’s specimen after delivery. This test is not performed on Rh-positive patients. Mother must be Rh negative and newborn must be Rh positive. Perform newborn testing first. Test determines quantity of Rh Immune Globulin needed.

Performing Laboratory

Sky Lakes Medical Center-Blood Bank

Specimen Requirements

Specimen should be drawn from mother as soon as possible after delivery of all products of conception, but not sooner than 1 hour after delivery. Pink top EDTA and Lavender top EDTA

Specimen Transport Temperature

Ambient-If a delay in testing occurs, specimen should be stored at 1 to 8° C.

Reference Values

Fetalscreen Negative. Positive Fetalscreens will be sent to Mayo Medical Laboratories for Fetomaternal Bleed, Flow Cytometry, to determine actual amount of fetal bleed and number of RhIG shots the mother needs to protect against Rh immunization.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

86900-ABO, 86901-Rh, Fetalscreen 85461