Skip to content

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 assess your current drug level and whether your dose is appropriate.

Quick summary

["Knowing your tramadol level helps ensure safe and effective pain management."]

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

Key facts at a glance

LOINC
17718-8
Short code
traMADol Ur Ql Cfm
Synonyms
traMADol Ur Ql Cfm
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you’re taking tramadol regularly, experiencing side effects, or if you’re concerned about drug interactions. It may also be used to monitor levels in patients with kidney or liver issues, who may need dose adjustments.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for a few hours before the test if your blood is drawn early in the morning. Wear comfortable clothing and plan to sit or lie down for a short time afterward, as you might feel lightheaded from the needle.

How the Test Is Done

A healthcare professional will insert a small needle into a vein in your arm or hand. Blood will be drawn into a tube, and the site will be cleaned and bandaged. The process takes a few minutes.

What the Results Mean

Results are typically reported in micrograms per milliliter (µg/mL) or milligrams per liter (mg/L). Your results will be compared to your healthcare provider’s specific guidelines, which may vary based on your weight, kidney function, and other medications you take.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Tramadol Level

Frequently asked questions

What causes tramadol levels to be checked?
Your doctor may check tramadol levels if you’re taking the medication long-term, if you have kidney or liver problems, or if you’re experiencing unusual symptoms like nausea, drowsiness, or irregular heartbeat.
How long does it take to get tramadol test results?
Results are usually available within 1 to 3 business days, depending on your lab and healthcare provider’s workflow. You’ll typically receive a call or email with your results from your provider.
Can I eat or drink before a tramadol blood test?
Most blood tests don’t require fasting, but if your provider specifies otherwise (e.g., for other tests), follow their instructions. Drink plenty of water the day of the test to stay hydrated.
  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