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Moxifloxacin in Serum or Plasma (Mass Concentration)

Published: August 9, 2026Updated: August 17, 2026

This test measures the amount of the antibiotic moxifloxacin in your blood, either serum or plasma. It helps your healthcare provider assess how your body is responding to treatment.

Quick summary

["This test helps monitor your dose of moxifloxacin to ensure it’s working effectively and to avoid potential side effects."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
45223-5
Short code
Deprecated Moxifloxacin SerPl-mCnc
Synonyms
Deprecated Moxifloxacin SerPl-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0
Ref high
17
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 Is Done

Your doctor may order this test if you’re taking moxifloxacin (an antibiotic) to treat or manage certain infections, such as respiratory, skin, or urinary tract infections. It helps track your drug levels to optimize treatment and prevent complications like resistance or toxicity.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re on long-term treatment, your levels may be checked periodically during your therapy.

What the Results Mean

Results are used to guide your treatment plan, but they don’t replace clinical judgment. Your doctor will interpret the results in the context of your symptoms, medical history, and other factors.

Common Reasons for Testing

Doctors may test moxifloxacin levels if you’re experiencing side effects (e.g., nausea, dizziness), if your infection isn’t improving, or if you’re taking other medications that could interact with it.

Reference range

NCBI: NSE 0-17 ng/mLN/A

Specimen: serum

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.

Clinical Significance

Short name

Moxifloxacin Level

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your doctor will contact you with the findings once they’re ready.
Can I eat or drink before this blood test?
You can eat and drink normally unless your doctor specifies otherwise. Avoiding food or fluids for hours before the test is not required for this type of test.
What should I do if I miss my scheduled test?
If you miss the test, contact your doctor immediately to reschedule. Skipping the test may delay treatment adjustments and could affect your infection control.
  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 17, 2026. · Read our editorial policy