Chromosome Analysis

Overview

  • EPIC Code:
  • LAB3136
  • Soft Test Code:
  • CHRBL
  • Send Out Test Code:
  • 14596
Alternate Names
  • Blood Chromosomes
  • Chromosome Analysis, Blood
  • Karyotype
  • Karyotype, Blood
Clinical Significance

This test may assist with the detection of common chromosome abnormalities


Specimen Collection & Preparation

Specimen Requirements

5.0 mL Whole Blood in a Green Top Tube - Na Heparin 

Alternate Specimen

3.0 to 5.0 mL Whole Blood in Tan Top Tube(s) - Na Heparin

Other vacutainer tubes containing sodium heparin are acceptable.

TransportAndStorage

Ambient (transport)

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

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

Clinical Interpretation

Reference Range:

Refer to Interpretive Results


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


Production Schedule

Sites Performed
  • Quest - Chantilly
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Sendouts - Genetics
Turn Around Time

10 days


Coding & Compliance

CDM

00918618; 00918619


CPT Coding

88230, 88262


Medical Necessity May Apply