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Oxycodone Concentration in Plasma (Quantitative)

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

This test measures the amount of oxycodone, a prescription pain medication, in your blood plasma. It helps assess drug levels for monitoring treatment or detecting misuse.

Quick summary

["This test helps doctors track how your body processes oxycodone and ensures safe dosing."]

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

Key facts at a glance

LOINC
73223-0
Short code
oxyCODONE ind plt IgM SerPl Ql FC
Synonyms
oxyCODONE ind plt IgM SerPl Ql FC
Category
hematology
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
82784
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 This Test Is Done

Your doctor may order this test if you’re taking oxycodone for pain management, to check if your dose is working properly, or to monitor for potential drug interactions or toxicity. It’s also used in cases of suspected misuse or overdose.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from a vein in your arm. The process takes a few minutes, and you may feel slight discomfort.

How the Test Results Are Used

Results help your healthcare provider adjust your medication if needed, confirm compliance with treatment, or identify issues like poor absorption or drug interactions. Always discuss results with your doctor.

Common Reasons for Abnormal Results

Low levels might indicate improper dosing or poor absorption, while high levels could signal overdose, drug resistance, or recent misuse. Your doctor will interpret results in the context of your medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Oxycodone Level

Frequently asked questions

What questions might you have about this test?
Is this test covered by insurance? Your insurance plan will determine coverage details, including copays or deductibles. Check with your provider for specifics.
Can I eat or drink before the test?
You can eat and drink normally unless instructed otherwise by your doctor. Blood tests typically don’t require fasting unless specified for other reasons.
How long will I wait for my results?
Results are usually available within 1–3 business days, depending on lab processing times. Your doctor will contact you directly with findings.
  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