Cardiovascular Markers: Cardiac Troponin I (Serum) with 24-Hour Urine Collection for Creatinine
This test measures your heart muscle protein (troponin) in your blood and checks your kidney function with a urine sample. It helps assess heart damage or kidney health.
["Helps detect heart injury or kidney issues by tracking protein levels and kidney filtration."]
Key facts at a glance
- LOINC
- 33616-4
- Short code
- CMV EA Ag Ur Ql
- Synonyms
- CMV EA Ag Ur Ql
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your doctor may order this test if you’ve had chest pain, heart attack symptoms, or signs of kidney problems. It’s also used in monitoring heart conditions or after trauma/injury. The troponin test detects heart muscle damage, while urine creatinine helps evaluate kidney function.
What to Expect Before the Test
No special preparation is needed for the blood draw, but you may be asked to fast for 8–12 hours before it. For the urine test, collect all urine for 24 hours (starting after midnight). Drink enough fluids to produce about 600 mL total.
What the Test Results Mean
Troponin levels above normal may indicate heart damage (e.g., from a heart attack or stress). Urine creatinine helps confirm kidney function, but results alone don’t diagnose conditions—your doctor will review them with your full medical history.
Common Conditions This Test Helps Diagnose
Troponin detects acute heart injury (e.g., myocardial infarction) or chronic heart strain. Urine creatinine assesses kidney function, which is critical for patients with heart disease or those on medications affecting kidneys.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated troponin signals heart muscle stress, while abnormal urine creatinine may reveal kidney dysfunction. Together, they help guide treatment for heart failure, post-heart attack care, or kidney-related heart risks (e.g., hypertension).
Short name
Cardiac Troponin + Urine Creatinine
Frequently asked questions
What does a positive troponin result mean?
Does the urine test replace a kidney function blood test?
Can I stop taking medications 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