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Succinylcholine Metabolite Concentration (Serum/Plasma)

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

This test measures the amount of a drug metabolite in your blood, which helps assess how your body processes succinylcholine, a medication used during certain types of surgery.

Quick summary

["This test helps doctors monitor how quickly your body breaks down succinylcholine for safe anesthesia."]

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

Key facts at a glance

LOINC
12429-7
Short code
Succinylcholine Ur-mCnc
Synonyms
Succinylcholine Ur-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Doctors may order this test if you’re scheduled for surgery requiring muscle relaxation. It helps ensure the medication wears off safely before you wake up, reducing risks like breathing problems or muscle damage.

What to Expect Before the Test

No special preparation is needed. You may have blood drawn from a vein in your arm, similar to other blood tests. Tell your doctor about any medications or health conditions that could affect results.

What the Test Results Mean

Results show how much of the metabolite is present in your blood. Higher levels may indicate slower drug breakdown, which could require adjustments to anesthesia timing. Your doctor will interpret results in the context of your medical needs.

Common Causes of Abnormal Results

Slow metabolism (due to liver or kidney issues) or certain medications might lead to higher metabolite levels. Rarely, genetic factors could affect how your body processes succinylcholine.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Succinylcholine metabolite levels

Frequently asked questions

Will I feel any pain during the blood draw?
You might feel a slight pinch when the needle goes in, but it’s usually over quickly. Most people experience minimal discomfort afterward.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor advises otherwise. No fasting is required for this test.
How long will it take to get my results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will discuss them with you during your follow-up.
  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