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Therapeutic Drug Monitoring. Carolyn E. Matthews RN, BSN NGR 5715 Spring 2007. Therapeutic Drug Monitoring. Measure Serum Drug Levels Narrow Therapeutic Drug Windows Maximize Efficacy Minimize Toxicity. therapeutic. toxic. Theophylline Phenytoin Carbamazine Digoxin
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Therapeutic Drug Monitoring Carolyn E. Matthews RN, BSN NGR 5715 Spring 2007
Therapeutic Drug Monitoring • Measure Serum Drug Levels • Narrow Therapeutic Drug Windows • Maximize Efficacy • Minimize Toxicity therapeutic toxic
Theophylline Phenytoin Carbamazine Digoxin Aminoglycoside antibiotics Drugs with “Narrow Window” therapeutic toxic
Sampling • Confirm toxicity – • Clinical signs of toxic levels • Adjust Dose Regimens Fatigue, Nausea…………………Psychosis, Death
Steady State Concentrations • 4-5 Half-lives • Special considerations • Renal failure • Liver damage • Other medications • Food & alcohol • Loading doses • Age
Peaks & Troughs • Serum levels within therapeutic range? • When to draw blood sample. www.i-base.org.uk/guides/side/levels.html