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HelpTest ID LBOR0172 FLT3 Mutation Analysis, Varies
Useful For
Prognostic indication for some patients with acute myeloid leukemia
This test should not be used to monitor residual disease following treatment.
Specimen Type
VariesOrdering Guidance
This test is intended to be used as a prognostic test at diagnosis and should not be used to monitor residual disease following treatment.
Shipping Instructions
Specimen must arrive within 7 days of collection.
Necessary Information
The following information is required:
1. Pertinent clinical history
2. Clinical or morphologic suspicion
3. Date and time of collection
4. Specimen source
Specimen Required
Submit only 1 of the following specimens:
Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA) or yellow top (ACD)
Specimen Volume: 3 mL
Collections Instructions:
1. Invert several times to mix blood.
2. Send specimen in original tube. Do not aliquot.
3. Label specimen as blood.
Specimen Stability Information: Ambient (preferred)/Refrigerate
Specimen Type: Bone marrow
Container/Tube: Lavender top (EDTA) or yellow top (ACD)
Specimen Volume: 2 mL
Collections Instructions:
1. Invert several times to mix bone marrow.
2. Send specimens in original tube. Do not aliquot.
3. Label specimen as bone marrow.
Specimen Stability Information: Ambient (preferred)/Refrigerate
Specimen Type: Extracted DNA from blood or bone marrow
Container/Tube: 1.5- to 2-mL tube
Specimen Volume: Entire specimen
Collection Instructions:
1. Label specimen as extracted DNA from blood or bone marrow
2. Indicate volume and concentration of DNA on the label.
Specimen Stability Information: Frozen (preferred)/Refrigerate/Ambient
Reject Due To
| Gross hemolysis | Reject |
| Bone marrow biopsies, slides, paraffin shavings Moderately to severely clotted |
Reject |
Specimen Minimum Volume
Blood, Bone Marrow: 1 mL
Extracted DNA: 50 mcL at 20 ng/mcL concentration
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Varies | 7 days |
Day(s) Performed
Monday through Saturday
Report Available
3 to 6 daysMethod Name
Polymerase Chain Reaction (PCR)/Capillary Electrophoresis
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
81245-FLT3 (fms-related tyrosine kinase) (eg, acute myeloid leukemia), gene analysis, internal tandem duplication (ITD) variants (ie, exons 14, 15)
81246-FLT3 (fms-related tyrosine kinase 3) (eg, acute myeloid leukemia), gene analysis; tyrosine kinase domain (TKD) variants (eg, D835, I836)
Reporting Name
FLT3 Mutation Analysis, VReference Values
An interpretive report will be provided.
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Forms
1. Hematopathology Patient Information (T676)
2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.
Special Instructions
Secondary ID
19739Testing Algorithm
For more information see:
-Acute Leukemias of Ambiguous Lineage Testing Algorithm
-Acute Myeloid Leukemia: Testing Algorithm
-Acute Myeloid Leukemia: Relapsed with Previous Remission Testing Algorithm
SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 17618 | Specimen |
| 11515 | FLT3 Mutations (ITD and D835) |
| 17622 | Final Diagnosis |