CPT® Code 80194

The CPT® Code 80194 refers to a laboratory test specifically designed to measure the levels of quinidine in the blood. Quinidine, which is also known by its brand names such as Cardioquin, Quinora, and Quinidex, is a medication that serves two primary pharmacological purposes. Firstly, it is utilized in the management of ventricular and atrial cardiac dysrhythmias, where it functions to block abnormal electrical impulses that can disrupt the normal rhythm of the heart. Secondly, quinidine is employed in the treatment of malaria, a serious infectious disease caused by parasites. The administration of quinidine can occur either orally or through injection, depending on the clinical scenario and the patient's needs. To ensure the drug is being used effectively and safely, healthcare providers monitor blood concentration levels of quinidine at regular intervals. This monitoring is crucial for assessing therapeutic drug levels, as it helps to determine whether the dosage is appropriate for the patient’s condition. The process of obtaining a blood sample for this test involves a venipuncture, which is a procedure that can be reported separately. Once the blood sample is collected, the serum is analyzed using a technique known as fluorescence polarization immunoassay, which allows for accurate measurement of quinidine levels in the bloodstream.