Updated Test

Effective Date

11/28/2022

Notes

Update to alternate specimen, stability, and rejection criteria.

Alternate Specimen:

Whole Blood: ACD yellow top tube, royal blue top, sodium or lithium heparin green tube.

Bone marrow:
Collect and send 10.0 mL (10.0 mL minimum) bone marrow in Lavender EDTA tube.

Rejection Criteria: Do not reject.

Stability: Whole blood or bone marrow:
               Room temperature: 8 days
               Refrigerated: 8 days
               Frozen: Unacceptable

Test Details

Mnemonic

GAUCH

Ordering Code

3515000

CPT-4 Codes(s)

81251, add 88235 if testing is performed on amniotic fluid or chorionic villi at additional charge