Service Providers for Phenytoin
The phenytoin test measures the level of phenytoin, an anticonvulsant, in the blood to ensure it is within the therapeutic range. Preparation may involve fasting or avoiding certain medications before the test. A blood sample is drawn, typically from a vein in the arm. Risks include mild discomfort, bruising, or infection at the needle site. After the test, you can resume normal activities. Results are interpreted to adjust medication doses for effectiveness and prevent toxicity. Conditions like liver disease, kidney problems, or drug interactions can affect phenytoin levels and the test results.