Omeprazole (Serum Concentration)
This test measures the amount of omeprazole, a medication used to reduce stomach acid, in your blood serum. It helps doctors monitor your dose and ensure it’s working properly.
["Check your omeprazole levels to confirm your medication is effective and avoid potential side effects."]
Key facts at a glance
- LOINC
- 73232-1
- Short code
- Omeprazole ind plt IgM SerPl Ql FC
- Synonyms
- Omeprazole 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 Is This Test Done?
Your healthcare provider may order this test if you’re taking omeprazole to treat conditions like acid reflux, ulcers, or excessive stomach acid. It helps assess whether your dose is appropriate or if adjustments are needed.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for a few hours before the blood draw. Wear a comfortable shirt for easy access to your arm.
What Happens During the Test?
A healthcare professional will insert a small needle into a vein in your arm to collect a blood sample. You may feel a brief pinch, but it’s usually over quickly. The blood is then sent to a lab for analysis.
What Does the Test Result Mean?
Results help determine if your omeprazole levels are within the expected range for your condition. Low levels might mean your dose isn’t strong enough, while high levels could indicate side effects or improper absorption.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Omeprazole Levels Matter
Short name
Serum Omeprazole Level
Frequently asked questions
Omeprazole is a proton pump inhibitor (PPI) used to reduce stomach acid. Monitoring its levels helps prevent complications like kidney issues, infections, or drug interactions. Low levels may mean your medication isn’t working, while high levels could signal toxicity or poor metabolism.
Typically, no special diet or medication restrictions apply unless your doctor specifies. Follow their instructions if they recommend fasting or stopping certain medications.
Results are usually available within 1–3 business days, depending on your lab. Your doctor will contact you with the final report.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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