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Budesonide in Serum (Pharmacokinetic Profile)

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

This test measures the amount of budesonide, a steroid medication, in your blood serum to assess how your body is processing and responding to the drug.

Quick summary

["Helps doctors check if your medication levels are safe and effective."]

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

Key facts at a glance

LOINC
73500-1
Short code
Budesonide ind plt IgM SerPl Ql FC
Synonyms
Budesonide ind plt IgM 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 budesonide (a corticosteroid) for conditions like asthma, COPD, or other inflammatory diseases. It helps monitor drug levels to prevent side effects or ensure proper treatment.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes. If you’re on long-term steroids, your provider may check levels periodically to adjust your dose.

What the Results Mean

Results help determine if your medication is working as intended. Low levels might mean your dose needs adjustment, while very high levels could signal potential side effects. Your provider will interpret results in the context of your medical history and symptoms.

Common Reasons for Testing

Doctors may test budesonide levels if you’re experiencing symptoms like infections, weight gain, or mood changes that could be linked to steroid use. It’s also used to confirm compliance with medication or optimize dosing for better control of symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Budesonide Levels

Frequently asked questions

What does budesonide do in the body?
Budesonide is a synthetic corticosteroid used to reduce inflammation in conditions like asthma, allergies, or certain lung diseases. By measuring its levels, doctors can ensure therapeutic efficacy and avoid excessive exposure, which can lead to side effects like bone thinning or immune suppression.
How often should I get this test?
Frequency depends on your treatment plan. Your healthcare provider will decide based on factors like how long you’ve been on the medication, your condition’s stability, and whether you’re experiencing side effects. Follow-up tests may be scheduled every few weeks, months, or as needed.
Can diet or other medications affect this test?
Yes. Certain foods, supplements, or other medications (like some antibiotics or antifungal drugs) can influence how your body processes budesonide. Always inform your provider about all medications, herbs, or dietary changes before testing.
  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