Thiopental concentration in serum/plasma (24-hour profile)
This test measures the amount of the anesthetic drug thiopental in your blood over a 24-hour period. It helps doctors monitor how your body processes and eliminates this medication, especially after surgery or anesthesia.
["This test helps ensure safe drug levels during recovery from anesthesia."]
Key facts at a glance
- LOINC
- 56697-6
- Short code
- Thiopental IgE Qn
- Synonyms
- Thiopental IgE Qn
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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’ve recently received thiopental, a fast-acting anesthetic, during surgery or medical procedures. It helps track how your body breaks down and removes the drug to prevent side effects like dizziness, confusion, or low blood pressure.
What to Expect Before the Test
No special preparation is needed. Blood is drawn from a vein in your arm, similar to other blood tests. You may feel a small pinch, but it usually doesn’t cause discomfort. If you’re on blood thinners, let your doctor know before the test.
What the Results Mean
Results show the concentration of thiopental in your blood at different times over 24 hours. While exact reference ranges vary by lab, your doctor will interpret these results in relation to your medical condition and treatment plan. Abnormally high or low levels may indicate how well your body is processing the drug.
Possible Side Effects or Considerations
Thiopental is generally safe when used as directed, but prolonged exposure or incorrect dosing can lead to side effects like low blood pressure, confusion, or respiratory issues. If you experience unusual dizziness, nausea, or irregular heartbeat after the test, contact your doctor immediately.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Monitoring Drug Metabolism and Safety
Short name
Thiopental Level (24h)
Frequently asked questions
What does a thiopental 24-hour profile help doctors assess?
Can this test detect thiopental in other body fluids besides blood?
Why might my doctor request this test instead of a single blood draw?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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