DILUTE RUSSELL VIPER VENOM (REFLEXIVE)
Order Flexilab
ADRVVT   ADRVVT A public resource on clinical lab testing from the laboratory professionals who do the testing  |   printer friendly  | search  |  back
 
Separate samples must be submitted when multiple tests are ordered. Unable to test for lupus inhibitor with heparin inhibitor present.
This test may reflex to additional tests depending upon the results of this test. An additional fee may be added.
Synonyms DRVVT
SPECIMEN REQUIREMENTS
Container Type Blue top tube (buffered sodium citrate)
Specimen Type Frozen plasma
Preferred Volume 2 mL
Minimum Volume 2 mL
Collection Procedure Liquid blue top tube filled to capacity. Must be performed within 4 hours of specimen collection.
Specimen Processing Specimens should be transported uncentrifuged or centrifuged with plasma remaining on top of the cells in an unopened tube kept at 2-4C or 22-24C. If time interval between drawing and testing exceeds 4 hours, centrifuge specimen, separate plasma, recentrifuge, separate into 2 clean plastic tubes (2 aliquots), and freeze at -20C or less.
Stability Room Temp 4 hours   Refrigerated 4 hours   Frozen (-20°C) 1 month  
Unacceptable Conditions Unable to test for lupus inhibitor with heparin inhibitor present. Severely hemolyzed, clotted samples or inappropriately filled liquid blue top tubes, specimens more than 4 hours old that have not been separated and frozen at -20C or less.
Department Coagulation
Reference Laboratory SHMC
CPT Codes 85613
Test Schedule Daily
Turnaround Time 1-3 days
Method Electromechanical
Test Includes dRVVT, sec; dRVVT Mix Ratio; dRVVT Confirm Ratio; dRVVT Confirm Mix Ratio.
Reference Ranges 
dRVVT                              31.8-45.7                                                 sec
dRVVT Mix Ratio                    0.0-1.2 Negative for Lupus Inhibitor Screen
dRVVT Confirm Ratio                LT 1.2 Negative for Lupus Inhibitor Screen
dRVVT Confirm Mix Ratio            LT 1.2 Negative for Lupus Inhibitor Screen
Notes Prolonged dRVVT results require a mixing study with normal pooled plasma. dRVVT mix ratios greater than 1.2 require confirmatory testing.
search  |  back

:: Interface Codes ::

typeorder codetest descriptionresult coderesult descriptionunitsdecimal placesloinc code
o85613.Z7Dilute Russell Viper Venom
r85613.Z7Dilute Russell Viper Venom85670.Z13dRVVT Confirm Ratio 150410-0
r85613.Z7Dilute Russell Viper Venom85670.Z17dRVVT Confirm Mix Ratio 150410-0
r85613.Z7Dilute Russell Viper Venom85670.Z8dRVVTsec16303-2
r85613.Z7Dilute Russell Viper Venom85670.Z9dRVVT Mix Ratio 157181-0


Questions/Comments