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Tramadol Concentration (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of tramadol, a pain medication, in your blood. It helps doctors monitor your drug levels to ensure safe and effective treatment.

Quick summary

["This test helps adjust your tramadol dose to avoid side effects or reduce risk of overdose."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
93719-3
Short code
traMADol Mec Ql Scn
Synonyms
traMADol Mec Ql Scn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
screen
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test if you’re taking tramadol long-term, have unusual side effects (like dizziness, confusion, or slow breathing), or if you’re experiencing withdrawal symptoms. It’s also used to check if the drug is working properly or if your kidneys are handling it well.

What to Expect Before the Test

You’ll typically have blood drawn from a vein in your arm. No special preparation is needed, but tell your doctor about any other medications you’re taking, as they may affect results.

What the Test Results Mean

Results show how much tramadol is in your blood at the time of testing. High levels might indicate overdose or poor metabolism, while very low levels could mean the drug isn’t working as intended. Your doctor will interpret results based on your medical history and symptoms.

Common Side Effects to Watch For

Tramadol can cause side effects like nausea, dizziness, or drowsiness. Severe reactions (like slow breathing or seizures) are rare but serious. If you experience these, seek medical help immediately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Tramadol Level

Frequently asked questions

How often should I get this test?
Your doctor will decide based on your treatment plan. For most patients, it’s done every few weeks or months to adjust doses if needed, especially if you have kidney issues or take other medications that interact with tramadol.
Can I drink alcohol before this test?
No, avoid alcohol before testing as it can affect tramadol metabolism and may lead to inaccurate results. Also, tell your doctor about any other substances you’re using, including over-the-counter drugs.
Will this test affect my ability to drive?
Tramadol can cause drowsiness or dizziness, which may impair your ability to drive safely. Avoid driving or operating machinery until you know how you react to the medication.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy