Analytic Time

3 - 10 days

MiChart Code
KIT Mutation for AML
Soft Order Code
KTAML

Test Updated:

Synonyms

KTAML
KIT Mutation Detection for Acute Myeloid Leukemia
KIT Exon 8, 17 Mutations

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All specimens should be accompanied by a requisition.

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Test Overview

Test Methodology

Polymerase Chain Reaction (PCR) followed by DNA sequence analysis

Test Usage

KIT gene mutations occur in approximately 25% of cases of acute myeloid leukemia (AML) with t(8;21) or inv(16), also referred to as core-binding factor AML. These mutations are predominately small length affecting mutations in KIT exon 8 and substitution mutations in KIT exon 17. KIT mutations in core-binding factor AML may be an adverse prognostic factor in this otherwise favorable-risk disease. This DNA sequencing test detects mutations in exons 8 and 17 of the KIT gene in blood and bone marrow specimens. This test will detect mutations in specimens when at least 30% of the nucleated cells carry the mutation.

Reference Range

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect blood or bone marrow in a lavender top tube. Refrigerate and send intact blood or bone marrow specimen within 48 hours of collection. Fresh tissue (preferably 0.5cm3, sent in RPMI) and fresh aspirates or body fluids are acceptable. Refrigerate and send, preferably within 24 hours. Frozen tissue specimens – preferably frozen with 1 hour of collection – may also be sent frozen on dry ice. Fresh cell suspensions in RPMI should be refrigerated and sent, preferably within 48 hours. Frozen cell suspensions – preferably frozen with 1 hour of collection – may also be sent frozen on dry ice.

Lavender Top Tube
Normal Volume
5 mL EDTA (lavender) whole blood; 3 mL EDTA (lavender) bone marrow; Fresh/frozen tissue and fresh aspirates or body fluids; Fresh/frozen cells in RPMI. Extracted DNA is also acceptable if extracted in a CLIA certified laboratory.
Minimum Volume
 

Billing Information

CPT Code
81272
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.