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Glipizide Concentration in Serum/Plasma

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

This test measures the amount of the diabetes medication glipizide in your blood. It helps your healthcare provider assess whether your dose is working effectively.

Quick summary

["Check your medication levels to ensure proper diabetes management."]

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

Key facts at a glance

LOINC
73361-8
Short code
glipiZIDE ind plt IgM SerPl Ql FC
Synonyms
glipiZIDE 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 doctor may order this test if you’re taking glipizide (a sulfonylurea) to manage type 2 diabetes. It helps monitor whether your medication is keeping your blood sugar within target ranges or if adjustments are needed.

What to Expect Before the Test

No special preparation is needed. You’ll likely have a small needle inserted into your arm or a blood sample drawn from a vein. If you’re on a blood thinner, let your provider know before the test.

What the Results Mean

Results are used to guide your medication dose. Low levels may suggest your dose isn’t enough, while high levels could indicate side effects or improper absorption. Your doctor will interpret results in the context of your overall health.

Common Causes of Abnormal Results

Factors like poor medication adherence, liver/kidney issues, or recent changes in diet/exercise can affect glipizide levels. Other conditions (e.g., kidney disease) may also impact test accuracy.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Glipizide levels help prevent hypoglycemia (low blood sugar) or hyperglycemia (high blood sugar) by ensuring your dose aligns with your body’s needs. Persistently abnormal results may require dose adjustments, alternative medications, or further evaluation of diabetes control.

Short name

Glipizide Level

Frequently asked questions

How often should I get this test?
Your doctor will determine the timing based on your medication regimen and diabetes management plan. Typically, tests are done periodically (e.g., every few months) to monitor effectiveness.
What if my results are outside the expected range?
If your levels are unusually high or low, your doctor may adjust your dose, check for side effects, or investigate other health factors affecting your diabetes control.
Does diet or exercise affect this test?
Yes—dietary changes (e.g., high-carb meals) or exercise can temporarily alter blood sugar and glipizide absorption. Avoid major dietary shifts before testing to get accurate results.
  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