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Gatifloxacin (Antibiotic) Quantitative Concentration in Urine

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

This test measures the amount of the antibiotic gatifloxacin in your urine. It helps determine how your body is processing the medication and whether it’s being eliminated as expected.

Quick summary

["This test helps monitor your response to gatifloxacin treatment and check for proper drug clearance."]

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

Key facts at a glance

LOINC
41494-6
Short code
Gatifloxacin Islt SlowMyco
Synonyms
Gatifloxacin 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

Why This Test Is Done

Your healthcare provider may order this test if you’re taking gatifloxacin to treat infections like bacterial pneumonia, skin infections, or urinary tract infections. It helps ensure the medication is working effectively and isn’t building up in your body too much.

What to Expect Before the Test

No special preparation is needed. You’ll likely provide a urine sample (midstream or container) during a clinic visit or at home, depending on your provider’s instructions. Avoid drinking excessive fluids before the test if instructed, as it may dilute the sample.

What the Test Results Mean

Results show the concentration of gatifloxacin in your urine. Higher-than-expected levels might indicate poor drug clearance, while very low levels could suggest the medication isn’t working as intended. Your provider will interpret results in the context of your treatment plan.

Common Reasons for Testing

This test is often used to assess compliance with antibiotic therapy, evaluate renal (kidney) function while on the medication, or detect drug resistance in infections.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Monitoring Drug Levels and Safety

Short name

Urine Gatifloxacin Level

Frequently asked questions

Why might my provider ask for this test?
Your provider may request this test to confirm you’re taking the medication as prescribed, check if your kidneys are handling the drug properly, or rule out issues like resistance to the antibiotic.
What does a high or low urine gatifloxacin level indicate?
High levels could mean your kidneys aren’t filtering the drug well, while very low levels might suggest the infection isn’t fully responding to treatment. Always discuss results with your provider.
Do I need to avoid certain foods or drinks before this test?
Follow your provider’s instructions—some may recommend avoiding caffeine or specific foods to ensure accurate results, but this varies by test protocol.
  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