Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:
Client Notes:
Patient Preparation:
Specimen Requirements:
5.0 mL Whole Blood in a Green Top Tube - Na Heparin
Collection Instructions:
Clinical history and reason for referral are required with test order
Do not Centrifuge
30 mL is preferred if other testing, e.g., microarray, FISH, is ordered
Minimum Volume:
1.0 mL Whole Blood
Neonatal Volume:
0.5 mL Whole Blood
Transport & Storage: Temperature/Stability:
Ambient (transport)
Specimen viability decreases during transit. Send specimen to testing lab for viability determination
Rejection Criteria:
Frozen, Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. Do not reject.
Reference Range:
Refer to Interpretive Results
Critical Ranges:
Test Comments:
This test may be replaced by Chromosome Analysis, Blood, No Growth if cultures do not yield metaphases for analysis or by Cytogenetics Communication, if a communication is required.
Methodology:
Culture • Karyotype • Microscopy
Clinical Significance:
This test may assist with the detection of common chromosome abnormalities
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
10 days
Days Performed:
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed:
Quest - Chantilly
PHL Test Code:
CHRBL
EPIC Test Code:
LAB3136
Send Out Test Code:
14596
Alternate Test Names:
Blood Chromosomes; Chromosome Analysis, Blood ; Karyotype; Karyotype, Blood
Included Tests:
CPT Coding:
88230, 88262