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An ECG (electrocardiogram) is a quick, painless test that records the electrical activity of your heart. It is one of the most common and important diagnostic tools in medicine used to detect irregular heartbeats, heart disease, and other cardiac conditions before they become serious. In Bahasa Malaysia, this is commonly referred to as ujian ECG or pemeriksaan jantung.
At U.n.i Klinik Sandakan, we offer ECG testing as part of our heart screening services. The test takes only a few minutes, requires no special preparation, and results are interpreted by our doctor on the spot. Whether you are experiencing chest pain (sakit dada), shortness of breath, or simply want a routine cardiac screening, our clinic is here to help.
An ECG test is recommended for anyone who wants to assess their heart health. You should consider getting an ECG if:
Many heart conditions include arrhythmia (irregular heartbeat), enlarged heart chambers, and early signs of coronary artery disease which can be present without noticeable symptoms. A routine ECG test can detect these conditions early, when treatment is most effective.
An ECG records the timing and strength of electrical signals as they travel through your heart. This allows our doctor to identify a range of cardiac conditions, including:
Condition | What the ECG Shows |
Arrhythmia (Irregular Heartbeat) | Abnormal heart rhythm patterns, too fast (tachycardia), too slow (bradycardia), or irregular |
Heart Attack (Current or Previous) | Changes in the ECG waveform that indicate reduced blood flow or damage to the heart muscle |
Enlarged Heart (Cardiomegaly) | Voltage patterns suggesting one or more heart chambers are larger than normal |
Coronary Artery Disease | ST-segment changes that may indicate blocked or narrowed arteries affecting blood supply to the heart |
Heart Valve Problems | Indirect signs of strain caused by malfunctioning heart valves |
Electrolyte Imbalances | Abnormal potassium, calcium, or magnesium levels that affect heart rhythm |
Our doctor will interpret your ECG result immediately and explain any findings in plain language. If further investigation is needed such as an echocardiogram, blood tests, or a specialist referral, we will guide you through the next steps.
Upon arrival, our staff will record your details and take a brief medical history, including any symptoms you are experiencing, current medications, and family history of heart disease. This helps our doctor interpret your ECG results in the right clinical context.
You will be asked to lie down comfortably. Our medical staff will place small adhesive electrodes (usually 10) on your chest, arms, and legs. These electrodes are painless and simply stick to the skin, no needles or injections are involved.
The ECG machine records the electrical activity of your heart for approximately 10 to 15 seconds. You will need to lie still and breathe normally during this time. The recording is completely painless, and you will not feel any electrical sensation.
Your ECG result is available immediately. Our doctor will review the tracing with you, explaining what each part of the ECG result means, whether your heart rhythm is normal, whether there are any areas of concern, and what follow-up is recommended. You will leave with a clear understanding of your heart health status.
An ECG produces a printed tracing (or digital display) showing your heart’s electrical activity as a series of waves. Each wave represents a specific phase of your heartbeat. Our doctor reads this tracing to assess whether your heart’s rhythm, rate, and electrical conduction are normal.
Key elements your doctor looks for include:
A “normal ECG” means the tracing shows no obvious abnormalities at the time of recording. However, some heart conditions are intermittent and may not appear on a single resting ECG. If your symptoms persist despite a normal result, our doctor may recommend further testing.
Yes. An ECG is completely safe and non-invasive. The electrodes placed on your skin only record electrical activity, they do not send any electricity into your body. There is no pain, no radiation, and no risk of side effects. The test is safe for all age groups, including children, pregnant women, and the elderly.
The entire procedure from electrode placement to result takes approximately 10 to 15 minutes. You can resume all normal activities immediately afterward.
Your ECG is read and explained by our qualified doctor. You receive a clear, personalised explanation of your heart health.
No waiting for lab reports. Your ECG result is available within minutes and reviewed with you on the same visit.
Transparent pricing with no hidden charges. We believe heart screening should be accessible to everyone in Sandakan.
Open Monday to Sunday, 9:00 AM to 10:00 PM. No referral needed. Walk in for your ECG test or book ahead via WhatsApp.
No special preparation is required. You may eat, drink, and take your medications as normal. We recommend wearing loose-fitting clothing so the electrodes can be placed on your chest easily. Avoid applying lotion or oil to your chest area on the day of the test, as this can affect electrode adhesion.
The actual recording takes only 10 to 15 seconds. Including electrode placement, the entire process takes about 10 to 15 minutes. You will receive your results and a consultation with our doctor during the same visit.
Not at all. The electrodes are small adhesive patches placed on your skin. They record your heart's electrical activity without sending any electricity into your body. The process is completely painless.
A normal ECG shows a regular heart rhythm between 60 to 100 beats per minute, with consistent wave patterns (P wave, QRS complex, T wave) and no signs of enlargement, ischaemia, or conduction abnormalities. Our doctor will show you your tracing and explain what each part means.
An ECG is excellent at detecting rhythm abnormalities, signs of heart attack, and structural changes. However, some conditions only appear during physical activity or are intermittent. If your symptoms persist despite a normal resting ECG, our doctor may recommend additional tests such as a stress ECG, echocardiogram, or blood tests.
ECG test pricing varies by clinic. At U.n.i Klinik Sandakan, we offer affordable and transparent pricing for all our heart screening services. Contact us via WhatsApp at 018-6412240 for current pricing information.
Take control of your heart health today. Whether you are experiencing symptoms or simply want peace of mind, schedule an ECG test at U.n.i Klinik Sandakan for a quick, painless heart screening with immediate results.
