Barbituratessalqlcfm
A test to detect the presence of barbiturates (sedative medications) in saliva/oral fluid using a confirmatory method.
{"Detects barbiturate drugs in saliva to monitor medication use or exposure","May be used for therapeutic drug monitoring or substance abuse screening","Saliva collection is non-invasive and convenient"}
Key facts at a glance
- LOINC
- 72451-8
- Short code
- BARB-SAL
- Synonyms
- Barbiturates Sal Ql Cfm
- Category
- chemistry
- Sample
- serum
- Container
- Sterile saliva collection device or oral fluid collection tube with stabilizing buffer; secure transport container
- Units
- N/A
- Ref low
- 10
- Ref high
- 50
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- confirm
- CPT
- 80307
- SNOMED
- 361110002
- Specimen volume
- 1-2 mL of oral fluid (saliva)
- Stability
- Room temperature: up to 7 days; Refrigerated (2-8°C): up to 14 days; Frozen (-20°C or below): up to 30 days for forensic specimens
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 24–72 hours
- Order
- routine
这是什么测试?
Barbiturate saliva test is a laboratory test that detects the presence of barbiturates in your saliva (oral fluid). Barbiturates are a class of sedative-hypnotic medications that were historically prescribed for anxiety, insomnia, and seizure disorders. This test uses a confirmatory method, which is a more specific and accurate testing technique to identify barbiturate compounds.
为什么需要这个测试?
Your healthcare provider may order this test for several reasons: to monitor if you are taking barbiturate medications as prescribed (therapeutic drug monitoring), to check for accidental or intentional overdose, or as part of a substance abuse screening program. It may also be used in forensic or employment settings where drug testing is required.
测试如何进行?
A healthcare professional will collect a sample of your saliva using a special collection device. The process is simple and involves placing a collection swab in your mouth to absorb saliva. The sample is then sent to a laboratory for analysis using confirmatory testing methods such as gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-tandem mass spectrometry (LC-MS/MS), which can accurately identify and quantify specific barbiturate compounds.
我需要做准备吗?
Before the test, inform your healthcare provider about all medications you are taking, including prescription drugs, over-the-counter medicines, and supplements. Some substances may interfere with the test results. Do not eat, drink, smoke, or chew gum for at least 10-30 minutes before the saliva sample is collected, as these activities may affect the sample quality.
Reference range
Negative (cutoff concentration typically 10-50 ng/mL depending on laboratory and specific barbiturate analyte)N/A
No special patient preparation required. Patient should rinse mouth with water and avoid eating, drinking, or using oral hygiene products for at least 10 minutes prior to specimen collection to avoid contamination.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long do barbiturates stay detectable in saliva?
Will this test show if I took my medication as prescribed?
Can second-hand exposure cause a positive result?
What do the results mean?
Sources
- 1
- 2
- 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