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HelpTest Code LAB892 Baby Type and Direct Coombs(aka Cord Blood Evaluation)
Additional Codes
aka Cord Blood Evaluation
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.
Methodology
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 LAB276 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
86880-Coombs
86900-ABO
86901-Rh type