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Category Biochemistry
Test background

Digoxin is administered for the treatment of heart failure in addition to supraventricular arrhythmias (particularly atrial fibrillation and atrial flutter).

Clinical Indications

Therapeutic drug monitoring Suspected toxicity caution: low potassium (diuretics), thyroid disease, renal impairment or recent myocardial infarction. Contraindicated in hypertrophic cardiomyopathy, intermittent heart-block, ventricular tachycardia

Reference range

Normal: 0.5-2.0 μg/L
Target range in heart failure: 0.5-1.0 μg/L

Sample & container required SST (gold top)
Sample volume 0.5 mL
Sample collection

Take blood 6 hours post dose

Turnaround time 1 day