Chromosome Analysis, Newborn (up to 21 days old)
| Abbrev Code: | BLNBCG | ||
| Order Code: | LAB4689 | Order Name: | Chromosome Analysis, Newborn (up to 21 days old) |
| Synonyms: | CHROM NB; Constitutional, Congenital; G-bands; Chromosome Blood Newborn | ||
| Methodology: | Chromosome analysis by G-banding. | ||
| CPT Codes: | 88230 x1, 88264 x1, 88291 x1 | ||
| Turnaround Time: | Verbal preliminary results are reported within 48 hours when clinically indicated; final results are reported within 7 days. | ||
| Special Instructions: | Test request form requires:
A signed informed consent in the patient's medical record is required. The consent should not be sent to the laboratory. The link to the Genetic Testing Consent form is provided as a convenience for the providers and genetic counselors. See Associated Links. |
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| Associated Links: | |||
Collection Instructions
| Specimen: | Whole blood
Alternative: Cord blood |
| Optimal Volume: | 3 mL |
| Minimum\Peds Volume: | 1 mL |
| Container: | Green (sodium heparin, no gel) |
| Causes for Rejection: | Clotted or frozen specimen. Incorrect specimen collection tube (anticoagulant). |
Processing and Shipping
| Specimen Processing: | Store at room temperature. Do NOT refrigerate or freeze. Do not process.
Specimens must be received in the Cytogenetics Laboratory Mon-Fri by 5:30 pm. Weekends and holidays by 4:30 pm. Specimens received after these cutoffs will be processed the following day. |
| Shipping Instructions: | Ship at room temperature. |
| Stability: |
For optimal testing results the specimen must arrive within 24 hours.
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| Test Performed at or Referral Lab | Cytogenetics (UMMC East Bank) |
Click HERE to Report test errors or omissions.
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