Minocycline Substance Concentration in Plasma (24-Hour Urine Collection)
This test measures how much minocycline, a medication used to treat certain infections, appears in your urine over a 24-hour period. It helps your healthcare provider check if the drug is working properly and at safe levels in your body.
["This test helps monitor your response to minocycline treatment and ensures it stays within safe ranges."]
Key facts at a glance
- LOINC
- 25225-4
- Short code
- Minocycline Islt Slgr Mcbct AB 30.0
- Synonyms
- Minocycline Islt Slgr Mcbct AB 30.0
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- method-for-slow-growing-mycobacteria-antibiotic-concentration-at-ug-ml
- 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 Is Done
Your doctor may order this test if you’re taking minocycline to treat conditions like acne, infections of the skin or joints, or certain types of arthritis. It helps them assess whether the medication is effective and if you need adjustments to your dose.
What to Expect Before the Test
You’ll need to collect all your urine for 24 hours, starting after your first morning urine void. Store the urine in a clean container, and return it to your lab or clinic on time. Follow any specific instructions your doctor gives you to ensure accurate results.
How the Test Works
The collected urine sample is analyzed to measure the amount of minocycline present. This is done using a sensitive laboratory method to detect even small traces of the medication in your urine.
What the Results Mean
Results will show the total amount of minocycline excreted in your urine over 24 hours. This helps your doctor determine if your dose is appropriate or if changes are needed to avoid side effects or reduce the risk of resistance in infections.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Minocycline Urine Test
Frequently asked questions
How long will I need to collect urine for this test?
What if I miss collecting urine for part of the day?
Can I drink alcohol 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