Test Details

Mnemonic

CHR

Ordering Code

3470100

CPT-4 Code(s)

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

Specimen Information

Collect

Green sodium heparin
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Specimen Preparation

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

3.0 mL
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Transport Temperature

Room temperature
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Rejection Criteria

Lithium heparin or frozen samples
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Stability

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