Test Directory
| Test Code | ||
| DRVVT | ||
| Test Name | ||
| Dilute Russell's Viper Venom Time (DRVVT) | ||
| CPT Codes | ||
| 85613 | ||
| Included Tests | ||
Reflexed when appropriate:
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| Expected Turnaround Time | ||
| 4 - 7 days | ||
| Clinical Utility | ||
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Qualitative detection of lupus anticoagulants in plasma. A normal or negative dRVVT screen shows no evidence of LUA in the dRVVT assay. A negative result does not necessarily rule out the presence of an LUA or an APL antibody. Due to the heterogeneity associated with lupus anticoagulants, performance of two or more different screening assays may significantly enhance LUA detection. A positive dRVVT screen with positive reflex confirmation indicates that the presence of LUA is suggested by the dRVVT. Results should be interpreted in light of clinical history and in conjunction with other laboratory findings. |
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| Specimen and Container Info | ||
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Specimen Type: Plasma Collection Container: 2 Full Light Blue Top (Sodium Citrate) |
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| Collection Instructions | ||
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Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate. Evacuated collection tubes must be filled to completion to ensure a proper blood-to-anticoagulant ratio. |
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| Processing and Submission Instructions | ||
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Create platelet poor plasma according to the Specimen Collection and Processing Guidelines for Coagulation Testing. |
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| Patient Preparation | ||
| Testing is contradictory for patients on anticoagulant therapy. | ||
| Transport Instructions | ||
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Transport to the laboratory frozen. |
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| Stability Requirements | ||
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| Causes for Rejection | ||
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| Methodology | ||
| Mechanical Clot Detection | ||
| Reference Intervals | ||
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| Performing Location | ||
| Roble Road Core Laboratory | ||
| Testing Schedule | ||
| Monday-Friday | ||
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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