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Hemoglobin A1c (HbA1c) with 24-hour urine collection for total urinary creatinine

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

This test measures your average blood sugar levels over the past 2–3 months and checks how much creatinine you excrete in urine over 24 hours. It helps assess long-term blood sugar control and kidney function together.

Quick summary

["Helps track diabetes management and kidney health in one combined test."]

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

Key facts at a glance

LOINC
71714-0
Short code
BRUCABMR
Synonyms
B abortus Ab Mlk Ql HIRT
Category
chemistry
Sample
serum
Container
Sterile, sealed milk collection vial; leak-proof plastic or glass container without preservative
Units
N/A
Ref low
1.5
Ref high
9
Fasting
false
Population
adult
Sex
female
Age range
18–65 years
Method
aggl-ring-test-heat-inact
CPT
83002
SNOMED
50866001
Specimen volume
10-30 mL of fresh raw milk (bulk tank or individual animal sample)
Stability
Refrigerated (2-8°C): up to 72 hours; Do not freeze; Test fresh milk preferably within 24 hours of collection
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
2–24 hours
Order
routine

Why This Test Matters for Blood Sugar Control

HbA1c reflects your blood sugar levels over time by measuring the percentage of hemoglobin (the oxygen-carrying part of red blood cells) that’s attached to sugar. This gives doctors a clearer picture than daily blood sugar checks alone.

How Urine Creatinine Works

Urine creatinine measures how well your kidneys filter waste products, including creatinine—a byproduct of muscle metabolism. This helps assess kidney function alongside your HbA1c results.

What to Expect Before the Test

For the urine portion, you’ll collect all urine for 24 hours in a special container. For HbA1c, a blood sample is taken from a vein in your arm. Follow any fasting instructions your doctor provides.

Common Causes of Abnormal Results

High HbA1c may indicate poor diabetes control, while elevated urine creatinine could signal kidney strain. Low creatinine might suggest muscle loss or dehydration. Both results should be interpreted with your full medical history.

Reference range

Follicular: 1.5-9.0 mIU/mLN/A

Specimen: serum

No special patient preparation required. Sample is a bulk milk tank or individual cow milk sample, not a human patient specimen in typical use

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: HbA1c and urine creatinine together provide a comprehensive view of diabetes management and kidney health. High HbA1c often correlates with long-term complications like nerve damage or heart disease, while abnormal creatinine levels may signal early kidney problems that need monitoring.

Short name

HbA1c + Urine Creatinine (24-hour)

Frequently asked questions

What does an abnormal HbA1c result mean?
An HbA1c above your target range (typically 7% or lower for most people with diabetes) suggests your blood sugar has been consistently higher than recommended. Your doctor will discuss lifestyle or medication adjustments to bring it down.
Why is urine creatinine checked alongside HbA1c?
Because kidney function affects how well your body processes medications and blood sugar. If your kidneys aren’t working well, your HbA1c results might not reflect true blood sugar control, and vice versa. This test helps ensure both are evaluated together.
Can diet or exercise affect these test results?
Yes! Diet, especially sugar intake, directly impacts HbA1c. Exercise can lower HbA1c by improving insulin sensitivity. Urine creatinine may vary slightly with muscle activity or hydration status, but your doctor will consider these factors when reviewing results.
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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