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HelpTest Code DRV3 Dilute Russell's Viper Venom Time (DRVVT) Confirmation, Plasma
Additional Testing Requirements
Serum anticardiolipin antibody testing (CLPMG / Phospholipid [Cardiolipin] Antibodies, IgG and IgM, Serum) and anti-beta-2 glycoprotein I (B2GMG / Beta-2 Glycoprotein 1 Antibodies, IgG and IgM, Serum) antibody testing should also be performed in conjunction with coagulation-based testing for lupus anticoagulants to enhance detection of different types of antiphospholipid antibodies.
Specimen Required
Only orderable as part of a reflex. For more information see:
ALUPP / Lupus Anticoagulant Profile, Plasma
ALBLD / Bleeding Diathesis Profile, Limited, Plasma
AATHR / Thrombophilia Profile, Plasma and Whole Blood
APROL / Prolonged Clot Time Profile, Plasma
ADIC / Disseminated Intravascular Coagulation/Intravascular Coagulation and Fibrinolysis (DIC/ICF) Profile, Plasma
Useful For
Confirming the presence or absence of lupus anticoagulants (LA)
Identifying LA that do not prolong the activated partial thromboplastin time (APTT)
Evaluating unexplained prolongation of the APTT or prothrombin time clotting tests
Distinguishing LA from a specific coagulation factor inhibitor or coagulation factor deficiencies
Reporting Name
DRVVT ConfirmationSpecimen Type
Plasma Na CitSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Na Cit | Frozen | 14 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Only orderable as part of a reflex. For more information see:
ALUPP / Lupus Anticoagulant Profile, Plasma
ALBLD / Bleeding Diathesis Profile, Limited, Plasma
AATHR / Thrombophilia Profile, Plasma and Whole Blood
APROL / Prolonged Clot Time Profile, Plasma
ADIC / Disseminated Intravascular Coagulation/Intravascular Coagulation and Fibrinolysis (DIC/ICF) Profile, Plasma
<1.20
Normal ranges for children: not clearly established, but similar to normal ranges for adults, except for newborn infants whose results may not reach adult values until 3 to 6 months of age.
Day(s) Performed
Monday through Friday
Report Available
2 to 5 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
85613
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| DRV3 | DRVVT Confirmation | 50410-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| RVCR3 | DRVVT Confirm Ratio | 50410-0 |
Testing Algorithm
Dilute Russell's viper venom time (DRVVT) confirmation is only performed when the DRVVT screen is abnormally prolonged. Refer to DRV1 / Dilute Russell's Viper Venom Time (DRVVT), Plasma for interpretation of results.
Specimen Minimum Volume
See Specimen Required