Laboratory Reference Ranges: Therapeutic Drug Monitoring*
Therapeutic Drug | Low Reference Ranges | High Reference Ranges | Critical High Values |
|---|---|---|---|
CarbamazepineCarbamazepine | 4.0 mcg/mL | 12.0 mcg/mL | ≥ 15.0 mcg/mL |
DigoxinDigoxin | 0.8 mg/dL | 2.0 mg/dL | ≥ 2.1 mg/dL |
GentamicinGentamicin | Trough: 1.0 mcg/mL Peak: 5.0 mcg/mL | Trough: 1.9 mcg/mL Peak: 8.0 mcg/mL | Trough: ≥ 2.0 mcg/mL Peak: ≥ 12.0 mcg/mL Random: ≥ 2.0 mcg/mL |
PhenobarbitalPhenobarbital | 10.0 mcg/mL | 30.0 mcg/mL | ≥ 50.0 mcg/mL |
PhenytoinPhenytoin | 10.0 mcg/mL | 20.0 mcg/mL | ≥ 25.0 mcg/mL |
TobramycinTobramycin | — Trough: 0.5 mcg/mL Peak: 6.0 mcg/mL | — Trough: 2.0 mcg/mL Peak: 9.9 mcg/mL | Random: ≥ 2.0 mcg/mL Trough: ≥ 2.0 mcg/mL Peak: ≥ 10.0 mcg/mL |
Valproic acidValproic acid | 50 mcg/mL | 99 mcg/mL | ≥ 100 mcg/mL |
VancomycinVancomycin | — Trough: 5 mcg/mL Peak: 20 mcg/mL | — Trough: 10 mcg/mL Peak: 40 mcg/mL | ≥ 30 mcg/mL Trough ≥ 30 mcg/mL Peak ≥ 80 mcg/mL |
* All values are for lithium-heparin serum samples.* All values are for lithium-heparin serum samples. | |||