Specimen Serum or EDTA (see availability below) Lab tests online Click here Special Instructions Trough (pre-dose collection) is the recommended sample timing in relation to dose. Reference Range Quoted therapeutic ranges refer to trough levels carbamazepine: 4 – 12 mg/L, half life 20 H phenytoin: 10 – 20 mg/L, half life 30 H All other […]
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