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HNF4A (MODY1) DNA Sequencing and Deletion Test
Test Code901134
CPT Codes
81406, 81479<br /> Restricted Client Code
Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.
Preferred Specimen
10 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
2 mL
Instructions
Informed consent is requried.
Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Ship overnight at room temperature (specimen arrival must be less than 24 hours after collection); ship Monday through Thursday only
Note: Hemolysis may compromise DNA recovery and integrity after 48 hours
Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Ship overnight at room temperature (specimen arrival must be less than 24 hours after collection); ship Monday through Thursday only
Note: Hemolysis may compromise DNA recovery and integrity after 48 hours
Transport Temperature
Room temperature or Refrigerated (cold packs)
Specimen Stability
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: Unacceptable
Refrigerated: 72 hours
Frozen: Unacceptable
Methodology
DNA Sequencing • Multiplex-Ligation Probe Amplification (MLPA)
Setup Schedule
Set up: Varies; Report available: 28 days
Reference Range
See Laboratory Report
Clinical Significance
Detects deletions and mutations in the HNF4A gene.
