Amphetamines Screen With Reflex Confirmation, Whole Blood
Use
The Amphetamines Screen with Reflex Confirmation is designed to detect the presence of amphetamines and related compounds in whole blood. Initial testing employs immunoassay techniques with a threshold sensitivity of 50 ng/mL to screen for the presence of amphetamines. Samples that test positive in this presumptive screen are confirmed using definitive chromatography mass spectrometry techniques (GC/MS or LC/MS-MS) to ensure accuracy and specificity. This test is useful for confirming intoxication or unlawful consumption of amphetamines in various contexts such as employment screenings or clinical assessments.
Special Instructions
Not provided.
Limitations
While the test is sensitive and specific when confirmation by GC/MS or LC/MS-MS is performed, it has not been cleared or approved by the FDA. Potential cross-reactivity or interference from other drugs or substances may lead to false positives or negatives, particularly in the initial immunoassay screen. Therefore, it should be used as part of a broader assessment when determining amphetamine use. Stability conditions also dictate sample handling to ensure accuracy.
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
LOINC Codes
- 51690-6 - Amphetamines Bld Ql Scn
- 51690-6 - Amphetamines Bld Ql Scn
- 29530-3 - Amphetamines Spec Ql
- 82966-3 - Methamphet SerPlBld Cfm-mCnc
- 82967-1 - Amphet SerPlBld Cfm-mCnc
- 74652-9 - MDMA SerPlBld-mCnc
- 74647-9 - MDA SerPlBld-mCnc
- 82965-5 - MDEA SerPlBld Cfm-mCnc
Result Turnaround Time
4-10 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
7 mL
Minimum Volume
3 mL
Container
Gray-top (sodium fluoride/potassium oxalate) tube, green-top (heparin) tube or lavender-top (EDTA) tube
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 days |
| Refrigerated | 8 days |
| Frozen | 8 days |
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