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Expected Turnaround Time
7 - 10 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Whole blood or LabCorp buccal swab kit (The buccal swab collection kit contains instructions for the use of a buccal swab.)
7 mL whole blood or LabCorp buccal swab kit
3 mL whole blood or two buccal swabs
Lavender-top (EDTA) tube, yellow-top (ACD) tube, or LabCorp buccal swab kit
Maintain specimen at room temperature, or refrigerate at 4°C.
Causes for Rejection
Frozen specimen; hemolysis; quantity not sufficient for analysis; improper container; single buccal swab
This test provides genotypes for CYP3A4 and CYP3A5.
This assay detects CYP3A4 alleles *1 and *22, and CYP3A5 alleles *1, *3, *6, *7. Other alleles are not detected by this assay.
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.
Multiplex polymerase chain reaction (PCR) and primer extension
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|504155||Cytochrome P450 3A4/3A5||81642-1||504161||3A4 Genotype:||81139-8|
|504155||Cytochrome P450 3A4/3A5||81642-1||504163||3A5 Genotype:||81140-6|
|504155||Cytochrome P450 3A4/3A5||81642-1||504633||Director Review:||72486-4|
|504155||Cytochrome P450 3A4/3A5||81642-1||504167||CYP3A4/3A5 Information:||62364-5|
|504155||Cytochrome P450 3A4/3A5||81642-1||000000||MGRM Informed Consent Review||N/A|