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Test Code BLOD1000 Baby Type and Direct Coombs

Useful For

Determining ABO group and Rho(D) type and for ruling out hemolytic disease of the newborn due to ABO incompatibility or due to atypical IgG antibodies in the mother.


Capture solid phase automation and manual blood banking methods

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Cord blood or whole blood

Container/Tube: Pink top preferred (K2 EDTA), Purple top,  or Cord Blood red top

Specimen Volume: Full tube

Specimen Pediatric Volume: 1 full, lavender-top (EDTA) Microtainer

Collection Instructions:  Do not centrifuge. Forward unprocessed whole blood promptly.

Specimen Rejection: Gel tubes are not acceptable.  Specimen must be labeled properly.  This test is affected by gross hemolysis.

Note: If specimen being drawn may be used for a possible transfusion, refer to test  BLOD0947 TYPE AND SCREEN for banded specimen collection instructions and blood product transfusion instructions.

Specimen Transport Temperature

Ambient <24 hours/Refrigerated >24 hours

Specimen Stability

Specimen Type Temperature Time
Whole Blood EDTA Ambient 24 hours
  Refrigerated 10 days
Cord Blood red top Refrigerated 21 days


Reference Values

Type: A, B, O, AB, A2

Rh: Positive or Negative

Direct Coombs: Negative

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


86901-Rh type