ARUP's Laboratory Test Directory

Dilute Russell Viper Venom Time (dRVVT) with Reflex to dRVVT 1:1 Mix & Confirmation : 0030461

Mnemonic: DRV CONF

Methodology: Clotting
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Collect: Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.

Specimen Preparation: Transfer 2 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 1 mL)

Storage/Transport Temperature: Frozen.

Unacceptable Conditions: Serum. Hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks
Reference Interval:
 
Test Number Components Reference Interval
 Dilute Russell Viper Venom Time (dRVVT) 33-44 seconds
 Dilute Russell Viper Venom (dRVVT) 1:1 Mix (performed if dRVVT > 44 seconds) 33-44 seconds
 Dilute Russell Viper Venom Time (dRVVT) Confirmation Test (performed if dRVVT 1:1 Mix > 44 seconds) Negative

Note: If dRVVT is elevated, then dRVVT 1:1 mix will be added. If the dRVVT 1:1 mix is elevated, then the dRVVT confirmation test will be added. Additional charges apply.

For complete studies, refer to Lupus Anticoagulant Reflexive Panel (ARUP test code 0030181). 
CPT Code(s): 85613; if reflexed, add 85613
Cross References: dRVVT Screen w/rfl dRVVT Confirm & dRVVT 1:1 Mix (Dilute Russell Viper Venom Time (dRVVT) with Reflex to dRVVT 1:1 Mix and Confirmation