Veripath Test Directory

Epic Test Name CHROMOSOME ANALYSIS, BLOOD, CONSTITUTIONAL NON-LEUKEMIC
Components
Synonyms Constitutional Chromosome Analysis
Cytogenetics, Blood, Constitutional
Karyotype, Blood, Constitutional
Description Analysis of chromosomes in peripheral blood for the diagnosis of constitutional (congenital) chromosome aberrations.
Specimen Requirements 
Container Sterile dark green top (sodium heparin) collection tube.
Specimen Type Blood
Preferred Collection Volume 5 mL; 1-2 mL for newborns
Minimum Collection Volume 3 mL
Collection Instructions Minimum 3 mL aseptically collected blood in a 5 mL dark green top, sodium
heparin tube (or 2 mL pediatric). DO NOT USE LITHIUM HEPARIN TUBES.
Specimen Handling Note: Deliver to lab at room temperature within 24 hrs. If collected over the weekend, call the laboratory to make arrangements for specimen delivery. May be refrigerated if not transported immediately.
Rejection Criteria Frozen, clotted, hemolyzed or grossly contaminated specimens. Incorrect anticoagulant used.
Methodology 72-hour culture with phytohemagglutinin, standard cytogenetic harvest, G-banded with trypsin-Wright stain. The chromosomes In twenty metaphase spreads are counted, five cells are fully analyzed, and two karyotypes are prepared.
Reference Range See interpretive report.
CPT Code(s) 88230, 88262, 88291
Department Cytogenetics
Contact Information Cytogenetics Lab: (214) 648-0975, Customer Service: (214) 645-7057 or Toll Free (877) 887-8136
Turn Around Time7-10 days
Performed Sunday - Saturday
Performed by Cytogenetics
Link
Notes
Updated/Reviewed 12/12/2016


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