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Carisoprodol concentration in serum/plasma (24-hour profile)

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

This test measures the amount of carisoprodol, a muscle relaxant, in your blood over a 24-hour period. It helps assess drug levels and potential side effects.

Quick summary

Helps monitor muscle relaxant exposure and safety over time.

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

Key facts at a glance

LOINC
73482-2
Short code
Carisoprodol ind plt IgM SerPl Ql FC
Synonyms
Carisoprodol 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 Is This Test Done?

Your healthcare provider may order this test if you’re taking carisoprodol (a muscle relaxant) for chronic pain or muscle spasms. It helps ensure safe dosing and check for excessive levels that could cause drowsiness, dizziness, or other side effects.

What to Expect Before the Test

No special preparation is needed. Blood is drawn from a vein, usually in your arm, at a lab or your doctor’s office. The process takes a few minutes, and you may feel slight discomfort.

What the Test Results Mean

Results show the concentration of carisoprodol in your blood over 24 hours. High levels may indicate overdose risk, while low levels might suggest insufficient pain relief. Your provider will interpret results based on your medical history and symptoms.

Common Reasons for Abnormal Results

Elevated levels could signal overdose, drug interactions, or improper dosing. Low levels may mean the medication isn’t working as intended. Always discuss results with your doctor.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is primarily used to assess drug exposure and adjust treatment if needed. It’s not a routine screening test but may be ordered in cases of suspected overdose, poor response to medication, or suspected drug interactions.

Short name

Carisoprodol blood level (24-hour)

Frequently asked questions

Why might I need this test?
Your doctor may recommend it if you’re taking carisoprodol long-term, have unusual symptoms (like extreme drowsiness), or if you’re being monitored for drug levels.
How long will I need to wait for results?
Results are typically available within 1–3 business days, depending on your lab. Your provider will contact you with findings.
Can I stop taking carisoprodol before this test?
No, do not stop taking carisoprodol without consulting your doctor. Sudden withdrawal can cause withdrawal symptoms. Follow your provider’s instructions instead.
  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