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Antimicrobial Susceptibility Testing for Moxifloxacin (Serum/Plasma) by MIC (Minimum Inhibitory Concentration)

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

This test measures how well your body’s fluids can stop moxifloxacin, a type of antibiotic, from growing. It helps doctors decide if this antibiotic is safe and effective for your infection.

Quick summary

["This test helps guide antibiotic treatment by checking how resistant bacteria are to moxifloxacin."]

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

Key facts at a glance

LOINC
41502-6
Short code
Moxifloxacin Islt SlowMyco
Synonyms
Moxifloxacin Islt SlowMyco
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
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

What This Test Measures

The test looks at the lowest concentration of moxifloxacin needed to stop bacterial growth in your serum or plasma. This is called the Minimum Inhibitory Concentration (MIC). A lower MIC means the antibiotic works well against the bacteria causing your infection.

Why It’s Done

Your doctor may order this test if you’re taking moxifloxacin to treat a bacterial infection, such as pneumonia, urinary tract infection, or skin infections. It helps ensure the antibiotic is strong enough to fight the bacteria without causing side effects.

How the Test Works

A small sample of your blood (serum or plasma) is tested in a lab. Bacteria are grown in the presence of different amounts of moxifloxacin. The smallest amount that stops bacterial growth is recorded as the MIC.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw, similar to other blood tests. If you’re on moxifloxacin, your doctor may adjust timing to avoid interference.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is critical for tailoring antibiotic treatment. A high MIC might mean the bacteria are resistant, and your doctor may need to switch to a different antibiotic. A low MIC suggests moxifloxacin is effective.

Short name

Moxifloxacin MIC Test

Frequently asked questions

Will I feel any pain or discomfort from this test?
You might feel a slight pinch during the blood draw, but it’s usually over quickly. Most people don’t experience significant discomfort.
How long will it take to get my results?
Results are typically available within 24 to 48 hours, depending on lab processing times.
Can I stop taking moxifloxacin while waiting for these results?
No, it’s important to continue taking your antibiotic as prescribed until your doctor tells you otherwise. Stopping early may not give the test enough time to be accurate.
  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