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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Antibody Screen, Prenatal

Test Code(s): PABSC / HCPABSC

CPT Code(s): 86850

Test Description: Included In: Coombs Antibody Titer (Red Cell Antibody Titer). This test will only be performed if the Indirect Antiglobulin test (or Antibody Screen ) is positive.

Methodology: Hemagglutination, Microtube Column Agglutination, or Solid-Phase

Days Performed: Daily, 0700 - 2230.

Turnaround Time: Stat: Not available stat.
Routine: Up to 24 hours.

Specimen Requirements

Specimen: Blood

Collection Instructions: Indicate collection date and time on specimen.

Collection Container: Preferred: Pink top tube

Collection Volume: Preferred: 6 mL

Sample Analyzed: Plasma

Volume Required: Preferred: 6 mL

Specimen Processing: Do NOT open or centrifuge tube.

Specimen Transport: Transport specimen to UWHC Transfusion Service (C7/381) or send to tube station 134.  

Unacceptable Criteria: Specimens collected in red cap with yellow ring (SST) tubes or green cap with yellow ring (PST) tubes, are not acceptable.

Stability: Ambient: 24 hours
Refrigerated: 3 days
Frozen: 1 year


Expected Results:


Additional Information:

This test is also called an Indirect Antiglobulin Test.

Coombs Antibody Screen
Indirect coombs
Indirect Antiglobulin Test

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