Glucose measured by enzymatic method in serum/plasma using β-blocker (metoprolol) interference correction
This test checks your blood sugar levels using a standard method to ensure accurate results, even if certain medications (like beta-blockers) might affect readings.
["This test helps monitor blood sugar, especially if you take medications that could influence glucose measurement."]
Key facts at a glance
- LOINC
- 53485-9
- Short code
- Glucose 45M p betaxolol SerPl-sCnc
- Synonyms
- Glucose 45M p betaxolol SerPl-sCnc
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 70
- Ref high
- 100
- Critical range
- 50 N/A – 400 N/A
- Fasting
- true
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82947
- SNOMED
- 260395008
- 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 to evaluate blood sugar levels, especially if you have diabetes, prediabetes, or are taking medications like beta-blockers that can interfere with glucose measurement. It may also be used during routine check-ups or to monitor conditions affecting blood sugar.
What to Expect Before the Test
No special preparation is needed for this test. You may fast before the test if instructed by your provider, but this test does not require fasting. Bring a list of all medications, including over-the-counter drugs and supplements, to discuss with your healthcare provider.
How the Test Is Performed
A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a slight pinch when the needle is inserted, but the procedure usually takes less than five minutes. The blood sample will be sent to a lab for analysis using an enzymatic method to measure glucose concentration.
What the Results Mean
The results provide a measurement of glucose in your blood, which helps determine if your levels are within a healthy range. While reference ranges vary by lab, your provider will interpret the results in the context of your overall health and medical history.
Reference range
Fasting: 70-100 mg/dLN/A
Fasting for 8-12 hours required. Water is permitted. Avoid chewing gum and smoking before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Glucose levels measured this way are critical for diagnosing and managing conditions like diabetes, where blood sugar control is essential. Beta-blockers can sometimes lower detected glucose levels, so this test ensures accurate monitoring. Abnormal results may prompt further testing or adjustments to treatment plans.
Short name
Glucose Level (Enzymatic, Serum/Plasma)
Frequently asked questions
What does an abnormal result mean?
How often should I get this test?
Can I eat or drink before this test?
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