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Troponin I High Sensitivity
119.00
The High Sensitivity Troponin I test detects very small amounts of cardiac muscle injury. It is a key marker used in the assessment of chest pain and suspected heart conditions.
Turnaround time
1-2 days
Biomarkers count
1
Same-Day Appointments
UKAS Accredited Labs
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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Troponin I High Sensitivity
What is the High Sensitivity Troponin I test?
The High Sensitivity Troponin I (hs-TnI) test measures extremely low levels of troponin I, a protein released into the blood when heart muscle cells are damaged. Troponin I is highly specific to the heart, making it a reliable marker of myocardial injury.
High sensitivity testing allows detection of cardiac damage much earlier and at lower levels than standard troponin tests. This improves early identification of acute coronary syndromes and other cardiac conditions, even when symptoms are mild or atypical.
The test is widely used in emergency and outpatient cardiac assessment.
Why do I need a High Sensitivity Troponin I test?
Heart-related symptoms can vary widely and are not always classic or severe. Early detection of myocardial injury is crucial for appropriate clinical decision-making.
You may need this test if you experience:
- Chest pain or chest tightness
- Shortness of breath
- Pain radiating to arm, neck, jaw, or back
- Palpitations
- Unexplained nausea or sweating
- Sudden fatigue or weakness
- Suspected heart attack or cardiac injury
- Monitoring known heart disease
Testing helps determine whether symptoms are related to heart muscle damage.
Benefits of the test
- Highly sensitive cardiac marker
Detects very small amounts of heart muscle injury. - Early detection of cardiac events
Identifies injury sooner than standard tests. - High specificity for heart tissue
Troponin I is specific to cardiac muscle. - Improves diagnostic confidence
Reduces uncertainty in chest pain assessment. - Useful in atypical presentations
Helps identify cardiac causes when symptoms are unclear. - Supports risk stratification
Assists in assessing severity and urgency. - Simple blood-based testing
Requires only one blood sample. - Widely used in UK clinical practice
Standard marker in cardiac assessment pathways.
Step-by-step: How we offer testing
Clinic-based testing (UK-wide)
- Choose your nearest UK clinic
- Attend your appointment
- A clinician draws a blood sample
- Sample is sent to the laboratory
- Results are issued once analysis is complete
Home or hotel visit (+£60, UK-wide)
- Mobile phlebotomy arranged where appropriate
- Blood sample taken at your home or hotel
- Sample securely transported to the laboratory
Your results explained
Low / undetectable Troponin I
- Troponin I within reference range
- UK standard (typical): <5 ng/L
- Suggests no evidence of heart muscle injury
Mildly elevated Troponin I
- Troponin I above reference range
- UK standard (typical): 5–34 ng/L (sex- and lab-specific)
- May indicate minor myocardial injury or strain
High Troponin I
- Markedly elevated troponin levels
- UK standard (typical): >34 ng/L (men) / >16 ng/L (women)
- Suggests significant heart muscle injury
Reference ranges vary by laboratory and sex; results should always be interpreted with symptoms and clinical context.
How It Works
Simple steps to get your results
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Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
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Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
3
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
Frequently Asked Questions
It measures heart-specific protein released when cardiac muscle is damaged.
Yes, troponin I is highly specific to cardiac muscle.
Yes, other cardiac conditions can cause elevation.
Yes, high sensitivity testing detects subtle injury.
Intense or prolonged exercise may cause small, temporary increases.
Yes, in certain clinical contexts.
Yes, reference ranges are sex-specific.
Chronic kidney disease may influence baseline levels.
Yes, it is a key marker in acute chest pain assessment.
It indicates heart muscle injury and supports urgent cardiac evaluation.
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