Cardiac Troponin I and Myoglobin Panel with Echocardiogram Data (24-Hour Collection)
This test measures heart-related proteins (troponin I) and muscle protein (myoglobin) in your blood, along with an echocardiogram to assess heart function. It helps evaluate conditions like heart attack, heart strain, or other cardiac stress.
["Helps detect heart damage or stress by checking blood markers and heart imaging."]
Key facts at a glance
- LOINC
- 34552-0
- Short code
- ECHO2D
- Synonyms
- —
- Category
- chemistry
- Sample
- serum
- Container
- Not applicable; imaging procedure does not require a specimen container
- Units
- N/A
- Ref low
- 55
- Ref high
- 70
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 0–120 years
- Method
- Two-dimensional transthoracic echocardiography with Doppler and M-mode imaging
- CPT
- 93306
- SNOMED
- 433236009
- Specimen volume
- Not applicable; this is an imaging study that does not require a blood specimen
- Stability
- Not applicable; imaging procedure
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 1–24 hours
- Order
- routine
What This Test Measures
Troponin I is a protein released when heart muscle cells are damaged. Myoglobin is a protein found in heart and muscle tissues. Together, these markers can indicate if your heart is under stress or injured. The echocardiogram provides a visual assessment of your heart’s structure and function.
Why It’s Ordered
Your doctor may order this test if you have symptoms like chest pain, shortness of breath, irregular heartbeat, or if you’re at higher risk for heart problems (e.g., after a procedure, heart surgery, or known heart disease). It’s also used to monitor heart health in patients with chronic conditions.
Preparation for the Test
No special preparation is needed for the blood tests. For the echocardiogram, you may need to fast for a few hours before the procedure, and you’ll lie down on an exam table while a technician uses ultrasound waves to create images of your heart.
What to Expect During the Test
Blood is drawn from a vein in your arm, similar to other blood tests. The echocardiogram involves placing gel on your chest and moving a small device (transducer) over your heart to capture images. Both tests are usually quick and painless.
Reference range
Normal cardiac structure and function with left ventricular ejection fraction (LVEF) of 55-70%, normal valvular function, and no evidence of pericardial effusion or structural abnormalities. Reference values vary by parameter measured (e.g., LVEF 55-70%, LV end-diastolic diameter 42-58 mm for males, 39-53 mm for females).N/A
No special preparation required. Patients may continue regular medications and eat normally prior to the study. Wear comfortable clothing that allows easy access to the chest. Avoid applying lotions, oils, or powders to the chest area on the day of examination.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated troponin I levels often signal acute heart damage, such as a heart attack. Myoglobin can rise with muscle injury, including heart muscle stress. The echocardiogram helps confirm heart function issues, such as reduced pumping ability or structural problems. Together, these tests provide a comprehensive picture of your heart’s health and response to stress.
Short name
Cardiac Stress Panel (Echocardiogram + Biomarkers)
Frequently asked questions
How long will it take to get my results?
Can I eat or drink before the echocardiogram?
What if my results are abnormal?
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