Cord Blood Eval. (Mom Rh Negative)

Test Code

LAB6493

Alias/See Also

CORDN

CPT Codes
"ABO 86900, Rh 86901, Direct Coombs 86880"

Includes

Blood Type ABO, Rh and Direct Coombs

Instructions

Blood from umbilical cord in a pink top (EDTA) tube (preferred) or in a lavender top (EDTA) tube and a non-additive red top clot tube

Specimen Stability

Rooom Temperature 8 hours
Refrigerated 3 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Improperly labeled specimen; container damaged and leaking; insufficient quantity; frozen specimens; gel separator tubes.

Methodology
Hemagglutination

Setup Schedule

Daily

Report Available

Daily

Reference Range

DAT: Negative
ABO/Rh:
Blood Types in the US Blood Type & Rh How Many Have It Frequency
O Rh Positive 1 person in 3 37.4%
O Rh Negative 1 person in 15 6.6%
A Rh Positive 1 person in 3 35.7%
A Rh Negative 1 person in 16 6.3%
B Rh Positive 1 person in 12 8.5%
B Rh Negative 1 person in 67 1.5%
AB Rh Positive 1 person in 29 3.4%
AB Rh Negative 1 person in 167 .6%

Clinical Significance

The direct antiglobulin test (DAT, direct Coombs) detects antibodies attached to red blood cells. It helps diagnose the cause of hemolytic anemia, hemolytic disease of the newborn (HDN) or transfusion reaction.

Performing Laboratory
CH CHOMP Blood Bank

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.