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Serum/plasma concentration of clindamycin (antibiotic) measured by immunoassay

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

This test checks the amount of clindamycin, a prescription antibiotic, in your blood to monitor your treatment and ensure safe dosing.

Quick summary

["This test helps doctors track how your body is responding to clindamycin and prevent potential side effects."]

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

Key facts at a glance

LOINC
73437-6
Short code
Clindamycin ind plt IgG SerPl Ql FC
Synonyms
Clindamycin 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 This Test Is Done

Your healthcare provider may order this test if you’re taking clindamycin to treat infections like bacterial skin infections, respiratory infections, or certain types of pneumonia. It helps ensure the right amount of the drug is in your bloodstream to fight the infection effectively while minimizing risks.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw blood. If you’re on clindamycin, your provider may ask you to stop taking it temporarily before the test, depending on the timing of your dose.

What the Results Mean

Results are compared to a general reference range for clindamycin levels in blood. Low levels may indicate the drug isn’t working well, while very high levels could signal toxicity or improper dosing. Your provider will interpret results in the context of your medical history and treatment plan.

Possible Side Effects

Clindamycin can cause side effects like diarrhea, nausea, or allergic reactions. If you experience severe symptoms like rash, difficulty breathing, or signs of infection (e.g., fever, chills), seek medical attention immediately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Clindamycin Level

Frequently asked questions

Clindamycin is used to treat serious bacterial infections. Monitoring its blood levels helps prevent resistance, ensures adequate coverage of the infection, and avoids overuse or underuse of the medication, which can lead to antibiotic resistance or ineffective treatment.
This test helps tailor your treatment to your specific needs, balancing effectiveness and safety. If you’re unsure why this test was ordered, ask your provider for clarification.
Will I need to stop taking clindamycin before the test?
Sometimes yes, but it depends on your dose schedule and the timing of the test. Your healthcare provider will give specific instructions based on your situation. Always follow their guidance.
What if my results are outside the normal range?
Your provider will discuss the results with you and adjust your treatment plan if needed. High levels may require dose adjustments or temporary stopping of the medication, while low levels might mean your infection isn’t fully treated or the drug isn’t working as expected.
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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