Ciprofloxacin concentration in plasma (quantitative)
This test measures the amount of the antibiotic ciprofloxacin in your blood plasma. It helps your healthcare provider assess how your body is responding to the medication and whether it’s at an effective level.
["This test helps monitor your antibiotic treatment for infections."]
Key facts at a glance
- LOINC
- 73445-9
- Short code
- Ciprofloxacin ind plt IgG SerPl Ql FC
- Synonyms
- Ciprofloxacin ind plt IgG SerPl Ql FC
- Category
- hematology
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- flow-cytometry
- CPT
- 82784
- 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 doctor may order this test if you’re taking ciprofloxacin for an infection, especially if you have a complex illness, are receiving high doses, or if you have certain kidney or liver conditions. It helps ensure the drug is working properly and avoids unnecessary side effects.
What Does the Result Mean?
Results are not provided with specific numeric ranges here, as they depend on your dose, kidney function, and other factors. Your doctor will interpret the result in the context of your treatment plan and medical history.
How Is the Sample Collected?
A blood sample is drawn from a vein, usually in your arm. The plasma portion of the blood is then tested for ciprofloxacin levels.
What Are Common Uses?
This test is primarily used to guide dosing adjustments, detect drug resistance, or assess compliance with ciprofloxacin therapy in serious infections.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Ciprofloxacin is a fluoroquinolone antibiotic used to treat bacterial infections. Monitoring its levels helps prevent excessive accumulation (which can cause side effects) or insufficient levels (which may mean the infection isn’t fully treated). Your doctor may adjust your dose based on these results.
Short name
Plasma Ciprofloxacin Level
Frequently asked questions
Why might my doctor want to check my ciprofloxacin level often?
What should I do if I miss a dose of ciprofloxacin?
Can I drink alcohol while taking ciprofloxacin?
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