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Serum/plasma concentration of a specific protein marker measured by immunoassay (likely a cardiac troponin variant or similar cardiac biomarker)

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

This test measures a protein related to heart muscle damage or stress, often used to assess cardiac health or rule out conditions like a heart attack.

Quick summary

["Helps detect early signs of heart damage or inflammation in the heart muscle."]

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

Key facts at a glance

LOINC
78750-7
Short code
HEV RNA SerPl NAA+probe-Log IU
Synonyms
HEV RNA SerPl NAA+probe-Log IU
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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 have symptoms like chest pain, shortness of breath, or irregular heartbeat. It can also be used to monitor heart health in people with known heart conditions or after a heart procedure.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re fasting, follow your doctor’s instructions.

What the Test Results Mean

Elevated levels may indicate recent or ongoing heart damage, inflammation, or stress. Lower levels may suggest normal heart function or other conditions. Your doctor will interpret results in the context of your symptoms and medical history.

Common Conditions Monitored

This test helps diagnose or monitor heart-related issues such as myocardial infarction (heart attack), heart failure, or conditions like myocarditis (inflammation of the heart muscle).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: This test is critical for identifying cardiac injury or stress early, allowing for timely medical intervention. It supports diagnosis, guides treatment decisions, and helps monitor chronic heart conditions.

Short name

Cardiac Biomarker Screening (Serum/Plasma)

Frequently asked questions

What does a positive result mean?
A positive result (elevated levels) often signals recent or ongoing heart damage, such as a heart attack or inflammation. Your doctor will review your symptoms and test results to determine the next steps.
Can I eat or drink before this test?
If fasting is required, avoid food and liquids (except water) for at least 8–12 hours before the test. Follow your healthcare provider’s instructions to ensure accurate results.
How long will I need to wait for results?
Results are typically available within 1–3 business days, depending on your lab. Your doctor will discuss them with you during your follow-up visit.
  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