Skip to content

Serum Glucose Concentration Measured 30 Minutes Post-Beta-Blocker Administration

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

This test measures your blood sugar level 30 minutes after taking a beta-blocker medication, often used to assess how your body responds to certain heart medications.

Quick summary

Helps doctors evaluate how beta-blockers affect your blood sugar levels over time.

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

Key facts at a glance

LOINC
53484-2
Short code
Glucose 30M pre betaxolol SerPl-sCnc
Synonyms
Glucose 30M pre 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

Doctors may order this test if you’re taking beta-blockers (like atenolol or metoprolol) and want to check how they might influence your blood sugar. It helps ensure your medication is safe and effective for your condition, especially if you have diabetes or are at risk for low blood sugar.

What to Expect Before the Test

You’ll likely fast for a few hours before the test, just like standard glucose checks. Bring your list of medications, including beta-blockers, to share with your healthcare provider.

What the Results Mean

Results compare your blood sugar level 30 minutes after taking the medication to your baseline (before taking it). Abnormally high or low levels could signal how your body processes the drug or if you need adjustments.

Common Causes of Abnormal Results

Factors like stress, illness, or other medications can affect blood sugar. If your results are outside expected ranges, discuss them with your doctor to rule out other health concerns or adjust your treatment plan.

Reference range

Fasting: 70-100 mg/dLN/A

Specimen: serum

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.

Clinical Significance

Short name

Glucose Level Check After Medication

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your doctor will contact you with the final report.
Can I eat or drink anything before this test?
You’ll need to fast for 8–12 hours before the test, but water is usually allowed unless instructed otherwise. Follow your doctor’s specific fasting guidelines.
Why is this test different from a standard blood sugar check?
This test specifically measures your response *after* taking a beta-blocker, helping doctors monitor how the medication affects your blood sugar differently than a regular glucose test.
  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