Nortriptyline is a tricyclic antidepressant. Therapeutic drug levels are monitored to assist the physician assessing therapeutic response and to avoid toxicity.
3.0 mL Serum from a Red Top Tube in a Plastic Vial
5 days Ambient (transport)
7 days Refrigerated (Preferred)
1 month Frozen
Collect at steady-state trough concentration. Specimen should be collected >12 hours after dose.
Centrifuge and separate from cells immediately
1.5 mL
50-150 mcg/L
Nortriptyline is a tricyclic antidepressant. Therapeutic drug levels are monitored to assist the physician assessing therapeutic response and to avoid toxicity.
1 to 2 days
01422813
80335 (HCPCS: G0480)