Indication

Toxic phenobarbital serum level

A toxic phenobarbital serum level is a laboratory-defined clinical state of barbiturate overdose where circulating concentrations of phenobarbital exceed the standard therapeutic range, typically surpassing 40 mcg/mL. Read more about Toxic phenobarbital serum level

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About Toxic phenobarbital serum level.

A toxic phenobarbital serum level is a laboratory-defined clinical state of barbiturate overdose where circulating concentrations of phenobarbital exceed the standard therapeutic range, typically surpassing 40 mcg/mL.

This condition primarily affects the central nervous and cardiovascular systems across pediatric and adult populations receiving therapy or experiencing accidental or intentional ingestion.

Pathophysiologically, excessive serum levels hyperactivate gamma-aminobutyric acid type A receptors, inducing generalized central nervous system depression that clinically manifests as lethargy, ataxia, nystagmus, hypothermia, progressive coma, respiratory depression, and life-threatening circulatory collapse.

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