A patient is taking digoxin (Lanoxin) and develops a dysrhythmia. The nurse reports this finding to the prescriber, who will most likely order phenytoin(Dilantin), serum electrolytes.
What is Phenytoin?
- A common brand name for phenytoin (PHT) is Dilantin, however there are other names as well.
- It is effective in preventing focal seizures and tonic-conic seizures (commonly known as grand mal seizures), but not absence seizures.
- Status epilepticus that does not respond to benzodiazepines is treated with the injectable form of fosphenytoin.
- Additionally, some heart arrhythmias and neuropathic pain may be treated with it.
- It can be ingested or administered intravenously.
- The effects of the intravenous version typically start functioning within 30 minutes and last for about 24 hours.
- The right dosage can be determined by measuring blood levels.
- By blocking voltage-gated sodium channels in a voltage-dependent manner, phenytoin is thought to prevent seizures.
Learn more about phenytoin here:
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