Qualified Medication Aides (QMA) Practice Exam

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Which of the following medications is known to inhibit seizures?

Digoxin
Dilantin
Warfarin
Metformin

The correct answer is: Dilantin

Dilantin, also known as phenytoin, is an anticonvulsant medication that is widely recognized for its effectiveness in preventing seizures. It works by stabilizing neuronal membranes and reducing the excitability of the neurons, which helps control seizure activity. This is particularly critical for individuals with epilepsy or other seizure disorders. In contrast, the other medications listed have different therapeutic uses. Digoxin is primarily used to treat heart conditions, particularly heart failure and atrial fibrillation, by increasing the force of heart contractions. Warfarin is an anticoagulant that is used to prevent blood clots and reduce the risk of stroke and heart attacks. Metformin is an antidiabetic medication that helps control blood sugar levels in people with type 2 diabetes. Each of these medications plays an important role in their respective fields, but they do not have the seizure-inhibiting properties found in Dilantin.