June 16, 2015

Important drug ranges


Drug
Normal Range
Abnormal Range
Acetaminophen
varies
> 250 mcg/mL
Amikacin
15 to 25 mcg/mL
> 25 mcg/mL
Aminophylline
10 to 20 mcg/mL
> 20 mcg/mL
Amitriptyline
120 to 150 ng/mL
> 500 ng/mL
Carbamazepine
5 to 12 mcg/mL
> 12 mcg/mL
Cyclosporine
100 to 400 ng/mL (12 hours after dose)
> 400 ng/mL
Desipramine
150 to 300 ng/mL
> 500 ng/mL
Digoxin
0.8 to 2.0 ng/mL
> 2.4 ng/mL
Disopyramide
2 to 5 mcg/mL
> 5 mcg/mL
Ethosuximide
40 to 100 mcg/mL
> 100 mcg/mL
Flecainide
0.2 to 1.0 mcg/mL
> 1.0 mcg/mL
Gentamicin
5 to 10 mcg/mL
> 12 mcg/mL
Imipramine
150 to 300 ng/mL
> 500 ng/mL
Kanamycin
20 to 25 mcg/mL
> 35 mcg/mL
Lidocaine
1.5 to 5.0 mcg/mL
> 5 mcg/mL
Lithium
0.8 to 1.2 mEq/L
> 2.0 mEq/L
Methotrexate
varies
> 10 mcmol/L over 24-hours
Nortriptyline
50 to 150 ng/mL
> 500 ng/mL
Phenobarbital
10 to 30 mcg/mL
> 40 mcg/mL
Phenytoin
10 to 20 mcg/Ml
> 30 mcg/mL
Primidone
5 to 12 mcg/mL
> 15 mcg/mL
Procainamide
4 to 10 mcg/mL
> 16 mcg/mL
Quinidine
2 to 5 mcg/mL
> 10 mcg/mL
Salicylate
varies
> 300 mcg/mL
Sirolimus
4 to 20 ng/mL (12 hours after dose; varies)

Tacrolimus
5 to 15 ng/mL (12 hours after dose)

Theophylline
10 to 20 mcg/mL
> 20 mcg/mL
Tobramycin
5 to 10 mcg/mL
> 12 mcg/mL
Valproic acid
50 to 100 mcg/mL
> 100 mcg/mL
Source:
http://www.nlm.nih.gov/medlineplus/ency/article/003430.htm