Drug Levels Test
How the Test is Performed
Drug levels are taken on a sample of blood from a vein.
Medical Conditions and Symptoms
Drug levels are usualy requested to check whether a drug dose needs to be adjusted, or to determine whether the level of the drug in the bloodstream is too high or too low.
Test Results Explained
When the level is within the therapeutic range, between the lower value and the higher value of the laboratory reference range, the dose is usually correct, but it is possible to get symptoms, side effects, or inadequate control of symptoms within this range and the dose may need to be adjusted according to your doctor’s clinical assessment.
Related Specialists
- General Practitioner (GP)
- General Physician
- Neurologist
- Emergency Physician
- Paediatrician
- Psychiatrist
- Toxicologist
- Respiratory Physician
Related Procedures
- Blood Test (venesection)
Related Tests
- Phenytoin level
- Carbamazepine level
- Valproate level
- Digoxin level
- Lithium level
- Theophylline level
- Paracetamol level
- Salicylate level
- Iron level
Also Known As
- Therapeutic drug levels
Links
A: Use HealthEngine to find and book your next GP appointment. Click on the following locations to find a GP clinic in your state or territory.
This article is for informational purposes only and should not be taken as medical advice. If in doubt, HealthEngine recommends consulting with a registered health practitioner.
All content and media on the HealthEngine Blog is created and published online for informational purposes only. It is not intended to be a substitute for professional medical advice and should not be relied on as health or personal advice. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. Never disregard the advice of a medical professional, or delay in seeking it because of something you have read on this Website. If you think you may have a medical emergency, call your doctor, go to the nearest hospital emergency department, or call the emergency services immediately.
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