Chromosome Analysis, Blood

Test Code
CHRSTDY


Quest Code
14596


Alias/See Also
Chromosome Studies
Karyotype
CHRSTDY
DNA TEST FOR BIOLOGICAL MALENESS
GENDER TEST
16843 (16843 was discont. in 2018, alt is this test 14596/CHRSTDY)


CPT Codes
88230, 88262

Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.


Preferred Specimen
5 mL whole blood collected in a sodium heparin (green-top) tube


Minimum Volume
1 mL


Other Acceptable Specimens
Sodium heparin (royal blue-top) tube • Sodium heparin lead-free (tan-top) tube


Instructions
Clinical history, ICD-9 code, and reason for referral are required with test order.



Whole blood 3-5 mL (1 mL minimum). Green vacutainer (sodium heparin only).

Ship at room temperature. Other vacutainer tubes containing sodium heparin are acceptable.

See Genetics Specimen Collection Section for detailed specimen instructions.

Specimen viability decreases during transit. Send specimen to testing lab for viability determination.


Transport Temperature
Room temperature


Specimen Stability
Room temperature: Preferred
Refrigerated: Acceptable
Frozen: Unacceptable


Methodology
Culture • Karyotype • Microscopy

Setup Schedule
Set up: Daily; Report available: 10 days


Reference Range
See Laboratory Report


Clinical Significance
This test may assist with the detection of common chromosome abnormalities.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153


Last Updated: February 28, 2024


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.