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Test Code KITB KIT Asp816Val Mutation Analysis, Blood

Reporting Name

KIT Asp816Val Mutation Analysis, B

Useful For

Diagnosing systemic mastocytosis in blood specimens

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Whole blood

Specimen Required

Container/Tube:

Preferred: EDTA (lavender top)

Acceptable: ACD-B (yellow top)

Specimen Volume: 4 mL

Collection Instructions:

1. Invert several times to mix blood.

2. Send specimen in original tube.

3. Label specimen as blood.

Specimen Minimum Volume

Blood: 1 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Ambient (preferred) 7 days
  Refrigerated  7 days

Reference Values

An interpretive report will be provided indicating the mutation status as positive or negative.

Day(s) and Time(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

81273-KIT (v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog) (eg, mastocytosis), gene analysis, D816 variant(s)

LOINC Code Information

Result ID Test Result Name Result LOINC Value
34851 Final Diagnosis: 34574-4

Method Name

Allele-Specific Oligonucleotide Polymerase Chain Reaction (PCR)
(PCR is utilized pursuant to a license agreement with Roche Molecular Systems, Inc.)

Forms

1. Hematopathology Patient Information (T676) in Special Instructions

2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request Form (T726) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/hematopathology-request-form.pdf)

Necessary Information

The following information is required:

1. Pertinent clinical history

2. Clinical or morphologic suspicion

2. Date of collection

3. Specimen source

Shipping Instructions

Specimen must arrive within 7 days (168 hours) of draw.