Phenytoin Test: Procedure, Price and Result | Metropolis Healthcare
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Phenytoin Serum Test

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Phenytoin Test Overview

Phenytoin Blood test is performed to determine the concentration of phenytoin in blood with an aim to keep level of the drug within acceptable range.
Phenytoin (known by its brand name, Dilantin/Eptoin) is an anticonvulsant/antiepileptic medicine given to treat or prevent the reappearance of certain types of seizures.
A high concentration may lead to drop in blood pressure, a low concentration might be unsuccessful in preventing seizure, and cause various other side effects.
Levels should be monitored closely in patients with renal failure

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Summary Price Of Phenytoin Serum Test

We are a trusted lab, offering Phenytoin Serum Test with a transparent pricing structure.

The cost of Phenytoin Serum Test in India varies as per the city in India.

The average price of Phenytoin Serum Test ranges from ₹200 to ₹1100.

The price for the test in the following cities is:

  • Chennai: ₹990
  • Delhi: ₹950
  • Mumbai: ₹990
  • Pune: ₹990

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Frequently Asked Questions

Serum phenytoin levels are measured to ensure adequate therapy & diagnose overdose. It may also be used to check patient compliance. Initially, testing is done at regular intervals; to adjust the dose basis blood concentration in the first 5 days. Later on, the test is ordered at regular intervals and as needed to monitor blood concentrations.
Phenytoin clearance is affected by renal failure and hence drugs should be monitored closely in such cases

Phenytoin test measures phenytoin concentration in blood. This drug has zero-order pharmacokinetics and hence its clearance is dependent on its concentration in blood

Phenytoin test requires a blood sample. A tourniquet (elastic) band is placed tightly on the upper arm. The patient is then asked to make a fist. This helps in the build-up of blood filling the veins. The skin is disinfected before needle insertion and the blood sample is collected in vacutainer

If Phenytoin levels are in the therapeutic range, it indicates that the patient is unlikely to have recurrent seizures and will not experience significant side effects. 
Results should often be evaluated in conjunction with the time of blood collection and dosage of medicine.
High levels may result in toxicity leading to nystagmus, ataxia, and dysarthria

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