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Chloroform in Blood (Mass Concentration)

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

This test measures the amount of chloroform, a chemical compound, present in your blood. Chloroform is sometimes used in medical settings but can be harmful if present at high levels.

Quick summary

["Chloroform exposure may indicate recent or prolonged contact with this chemical, which can pose health risks."]

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

Key facts at a glance

LOINC
38649-0
Short code
Chloroform Air-mCnc
Synonyms
Chloroform Air-mCnc
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 This Test Might Be Ordered

Your healthcare provider may recommend this test if you’ve been exposed to chloroform (e.g., in industrial settings, cleaning products, or medical procedures) or if symptoms like dizziness, nausea, or respiratory issues occur after exposure.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw from a vein in your arm. If you’re taking medications or have recent medical conditions, let your provider know.

What the Results Mean

High levels of chloroform in blood can signal acute exposure or poisoning. Chronic exposure may show up over time. Results are compared to general reference ranges for healthy individuals.

Common Causes of Elevated Levels

Elevated chloroform levels can result from accidental exposure (e.g., cleaning products, solvents) or occupational hazards (e.g., chemical manufacturing). Rarely, it may appear in people with underlying health conditions affecting metabolism.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Chloroform Level

Frequently asked questions

What triggers this test?
Your doctor may order it after suspected exposure to chloroform, unusual symptoms after handling chemicals, or if you work in environments where such exposure is possible.
How is chloroform detected in blood?
The test uses a specialized chemical analysis method to measure chloroform’s concentration in your blood sample. Results are reported in mass concentration units.
Can lifestyle changes affect this test?
Lifestyle factors like diet or exercise generally don’t directly impact chloroform levels unless they influence overall health (e.g., liver function). Avoid known chloroform sources before testing if advised.
  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