Nortriptyline Test
Nortriptyline Test test available at DNA Labs India for ₹13,000. Uses LC-MS/MS on Serum samples. Results in 2-3 weeks. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr SHAILAJA RAGHUNATH MURDESHWAR
Consultant Physician · Reg: 8052
Last reviewed: September 7, 2026
Overview
To measure the concentration of Nortriptyline in the blood for therapeutic drug monitoring, aiding in the management of mental health conditions and ensuring safe and effective treatment.
- Test Code
- 1314
- Price
- ₹13,000
- Sample Type
- Serum
- Result Time
- 2-3 weeks
- Fasting Required
- No
- Method
- LC-MS/MS
Sample Collection
Collect specimen >12 hours post oral dose. Ensure a duly filled Test Send Out Consent Form (Form 35) is mandatory.
Method: Venipuncture
Laboratory Analysis
Standard blood draw procedure using venipuncture into a red top tube without additives.
Report Delivery
Store sample as per stability guidelines: room temperature for up to 8 hours, refrigerated for 7 days, or frozen for 30 days.
Timeline: 2-3 weeks
Patient Instructions
About This Test
Who Should Get This Test
To measure the concentration of Nortriptyline in the blood for therapeutic drug monitoring, aiding in the management of mental health conditions and ensuring safe and effective treatment.
How to Prepare
- Avoid using SST gel barrier tubes
- Ship refrigerated or frozen to maintain sample integrity
- Label sample correctly with patient details and timing
Doctor's Notes
Reviewed by Dr SHAILAJA RAGHUNATH MURDESHWAR — MBBS, MD (General Medicine) · Reg. No. 8052
"Nortriptyline test is crucial for monitoring therapeutic drug levels to optimize treatment for depression and other mental health conditions, ensuring efficacy and safety."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Sample collected in SST gel barrier tubes
- Insufficient volume (<1.5 mL)
- Incorrect tube type or improper labeling
Understanding Your Results
Therapeutic range
Action: Continue current dosage and monitor symptoms
Range: 50-150 ng/mL
Subtherapeutic level
Action: Consider dose adjustment under physician guidance
Range: <50 ng/mL
Potentially toxic level
Action: Consult physician immediately for dose reduction or intervention
Range: >150 ng/mL
Consult your doctor if Nortriptyline levels are outside the therapeutic range, if symptoms persist or worsen, or if you experience side effects like drowsiness, dizziness, or rapid heartbeat.
Limitations
- ⚠Measures only Nortriptyline levels, not a direct diagnosis of mental health conditions
- ⚠Results should be interpreted in conjunction with clinical symptoms and other tests
Risks & Considerations
- ●Minor bruising or pain at the puncture site
- ●Rare risk of infection or fainting
Interfering Factors
- ●Other medications that may affect drug metabolism
- ●Sample hemolysis or improper handling
- ●Incorrect timing relative to dose administration
Frequently Asked Questions
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