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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Antibody Screen

Test Code(s): NABS / ABSCR

CPT Code(s): 86850

Test Description: Included In: This test is also included in a Type and Screen and Type and Crossmatch.

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

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 8 hours.

Specimen Requirements

Specimen: Blood

Collection Instructions: Indicate collection date and time on specimen.
Specimens collected in red top tubes are acceptable but will cause delay in testing.

Collection Container: Preferred: Pink top tube (adult) or 2 mL lavender top acceptable for pediatric or neonate

Collection Volume: Preferred: 6 mL
Pediatrics: 2 mL

Sample Analyzed: Plasma

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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