Quinidine

Test Code
766

CPT Codes
80194

Preferred Specimen
1 mL serum collected in a red-top tube (no gel)

Patient Preparation
Collect just before next dose.

Minimum Volume
0.2 mL

Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top), or sodium or lithium (green-top) tube

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: Not established

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tube (SST®)

Methodology
Immunoassay

Setup Schedule
Set up: Mon-Sat; Report available: Next day

Reference Range
2.0-5.0 mg/L

Clinical Significance
Quinidine is used in the treatment of acute and chronic supraventricular arrhythmias and ectopic rhythm disturbances. Quinidine clearance can be altered by changes in plasma proteins and in renal and/or hepatic dysfunction. Both quinidine and the related isomer quinine possess antimalarial schizonticide activity. Quinidine levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.



Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.