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HelpTest Code Billings Clinic: 4046 Mayo: QUIN Quinidine, Serum
Reporting Name
Quinidine, SPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Assessing and adjusting quinidine dosage for optimal therapeutic level
Assessing quinidine toxicity
Method Name
Kinetic Interaction of Microparticles in Solution (KIMS)
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Red top (serum gel/SST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.
Specimen Type
Serum RedSpecimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Refrigerated (preferred) | 14 days | |
| Frozen | 28 days | ||
| Ambient | 14 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Therapeutic: 2.0-5.0 mcg/mL
Critical value: ≥6.0 mcg/mL
Interpretation
Optimal response to quinidine occurs when the serum level is between 2.0 to 5.0 mcg/mL.
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysTest Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80194
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| QUIN | Quinidine, S | 6694-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8302 | Quinidine, S | 6694-4 |
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.