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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Isoagglutinin Titer

Test Code(s): NISAG / HCNISAG

CPT Code(s): 86886

Test Description: Test Component:

Anti-A and / or Anti-B titer (depending on patient's blood type).

Methodology: Hemagglutination

Days Performed: Daily, 0700 - 2230.

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

Specimen Requirements

Specimen: Blood

Collection Instructions: Indicate collection date and time on specimen.

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, and green cap with yellow ring (PST) tubes, are not acceptable.

Stability: Ambient: 24 hours
Refrigerated: 10 days
Frozen: 1 year


Isoagglutinin Titer

anti-a titer
anti-b titer

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