Toxicology / Therapeutic
Also known as: Dilantin
If you experience severe dizziness, trouble walking, slurred speech, uncontrolled eye movements, or confusion, contact your doctor immediately or seek urgent medical care.
This test checks how much phenytoin is in your blood. Phenytoin is a medicine that helps control seizures.
Your doctor orders this test to check your phenytoin level. This helps make sure you have enough medicine to stop seizures. It also helps avoid problems from too much medicine.
Reference ranges for phenytoin can vary between different laboratories and depend on factors like age. Your doctor will interpret your results based on your specific situation.
Clinical Reference
590200114985610Medicare covers for coagulation disorder evaluation and anticoagulation monitoring
Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.