Chromosome Analysis

Last Modified: 10/25/2021 12:27:59 PM


  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
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

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