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Creatinine Clearance (from Hand-Cuff Blood Pressure Cuff)

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

This test estimates how well your kidneys filter waste from your blood using a simple blood pressure cuff measurement. It helps assess kidney function indirectly by measuring how quickly your blood clears a substance over time.

Quick summary

["A useful way to check kidney health without a urine test."]

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

Key facts at a glance

LOINC
36002-4
Short code
CT Hand
Synonyms
CT Hand
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
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

How This Test Works

Your blood pressure is measured while a small blood sample is taken. The test uses the blood pressure reading to estimate how well your kidneys filter waste products, typically creatinine, from your blood. This method avoids the need for a 24-hour urine collection, making it easier and less invasive.

What It Measures

Instead of measuring creatinine directly in urine, this test calculates clearance by using your blood pressure and blood sample. It reflects how efficiently your kidneys remove waste products from your bloodstream.

When You Might Need It

Your doctor may order this test if you have symptoms like fatigue, swelling, or frequent urination, or if you have conditions like diabetes, high blood pressure, or heart disease that can affect kidney function. It’s also used to monitor kidney health in people with chronic conditions.

What to Expect

You’ll have a simple blood draw, usually from your arm, while your blood pressure is measured. The process takes about 10 minutes. No special preparation is needed, but fasting may not be required unless your doctor specifies otherwise.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

None

Frequently asked questions

Why is creatinine clearance important?
It helps doctors assess kidney function without requiring a 24-hour urine test. Low values may indicate kidney damage or disease, while high values could suggest dehydration or other conditions affecting blood flow to the kidneys.
What does a low creatinine clearance mean?
A low result may signal impaired kidney function, which could be due to chronic kidney disease, diabetes, high blood pressure, or other health issues. It’s important to discuss results with your healthcare provider to determine the next steps.
Does this test replace a urine test for kidney function?
No, this test provides an estimate but isn’t as precise as a standard urine-based creatinine clearance test. Your doctor may use it alongside other tests to get a full picture of kidney health.
  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