24-Hour Manganese Intake Assessment
This test measures the total amount of manganese consumed over a 24-hour period, often used to evaluate dietary exposure or absorption in clinical or research settings.
["This helps assess how much manganese you’re ingesting daily."]
Key facts at a glance
- LOINC
- 81007-7
- Short code
- Manganese intake 24h Est
- Synonyms
- Manganese intake 24h Est
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 20
- Ref high
- 400
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- estimated
- CPT
- 82670
- 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 have suspected manganese toxicity (e.g., from occupational exposure, certain medications, or dietary concerns), or if you’re part of a study investigating dietary mineral absorption. It can also be used in research or specialized clinical scenarios to monitor long-term exposure levels.
What to Expect Before the Test
No special preparation is typically required. You’ll provide a 24-hour urine collection, starting from one point in time (often midnight or noon) and continuing until the same time the next day. Follow your provider’s instructions carefully to ensure accurate results.
How the Test Works
Your urine sample is analyzed to determine the total manganese content over the 24-hour period. The test does not measure manganese levels in your blood or tissues but focuses on dietary intake through urine excretion.
What the Results Mean
Results are expressed in units of mass concentration (e.g., micrograms per day). Higher than expected values may indicate excessive manganese intake, while lower values could suggest insufficient exposure or dietary restrictions.
Reference range
Premenopausal: 20-400 pg/mL; Postmenopausal: <30 pg/mLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Chronic manganese exposure at high levels can lead to health issues such as neurological problems, liver or kidney damage, or other organ toxicity. This test helps identify potential over-exposure, guiding further evaluation or dietary adjustments if needed. It is less commonly used than blood manganese tests but is valuable in specific research or occupational health contexts.
Short name
Manganese Intake (24h)
Frequently asked questions
What does a high manganese intake mean?
How is this different from a blood manganese test?
Can I change my diet before this test?
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