Test Details

Mnemonic

CHR

Ordering Code

3470100

CPT-4 Code(s)

88230, 88262. Fee for assay attempted (88230).

Specimen Information

Collect

Green sodium heparin

Specimen Preparation

Send 5.0 mL whole blood at room temperature. Completed Warde Medical Laboratory Cytogenetics Test Requisition Genetic Disorders required.

Minimum Volume

3.0 mL

Transport Temperature

Room temperature

Rejection Criteria

Lithium heparin or frozen samples

Stability

Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable

Methodology

Cultures, staining and other techniques when required
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Reference Range

Interpretive report
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Performing Laboratory

Quest Ameripath
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