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Heart Palpitation Evaluation: What to Expect During Your EKG

Jul 21, 2026
Heart Palpitation Evaluation: What to Expect During Your EKG
Experiencing a sudden fluttering or racing sensation in your chest? Don't let heart palpitations leave you anxious. Discover exactly what to expect during a routine, non-invasive Electrocardiogram (EKG) evaluation.

Feeling your heart suddenly skip a beat, flutter wildly, or race uncontrollably can be an incredibly alarming experience. Known clinically as heart palpitations, these sensations can occur due to a wide variety of triggers, ranging from daily stress, high caffeine intake, and lack of sleep to more complex, underlying cardiac arrhythmias. If you are experiencing new or recurring palpitations, securing a professional cardiovascular evaluation is an essential safety step. At Healthstone Primary Care, our first line of diagnostic defense is a standard, non-invasive test called an Electrocardiogram (EKG or ECG).

Understanding what an ekg measures

An electrocardiogram is a fundamental, completely painless diagnostic test that records the electrical signals moving through your heart. Every single time your heart beats, an internal electrical impulse travels through the cardiac tissue, dictating the precise timing and rhythm of the upper and lower heart chambers.

According to Mayo Clinic clinical resources, an EKG translates these moving electrical impulses into a series of waves displayed on a digital graph or screen. By analyzing the specific height, shape, and timing of these waves, your primary care physician can instantly evaluate a wealth of vital data, including:

  • Your baseline heart rate: Determining if your heart is beating too fast (tachycardia) or too slow (bradycardia).
  • Your underlying heart rhythm: Detecting irregular patterns such as Atrial Fibrillation (AFib).
  • Structural changes: Identifying signs of previous heart tissue strain or poor blood supply through the coronary arteries.

Preparing for your non-invasive procedure

One of the greatest benefits of a standard 12-lead EKG is that it requires absolutely no complex preparation, needles, or fasting. The entire procedure takes less than ten minutes from start to finish and can be performed right in the comfort of our Hollywood, FL, office.

Healthline notes that to ensure the diagnostic sensors function with maximum accuracy, you should avoid applying heavy lotions, body oils, or skin creams on the day of your test, as these can interfere with the sensors' adhesive components. During the test, you will lie flat on a comfortable examination table. A clinical technician will gently attach 10 small, adhesive gel patches—called electrodes—to specific areas across your chest, arms, and legs. If you have thick chest hair, a small patch may be quickly shaved to ensure the sensor makes secure, direct contact with your skin.

What happens during and immediately after the test

Once the sensors are firmly in place, the actual recording process takes less than a minute. You will be instructed to lie completely still, breathe normally, and avoid talking, as minor muscle movements or shivering can create visual "artifacts" on the electrical reading, mimicking an abnormal rhythm.

The machine does not deliver any electrical current into your body; it acts solely as a passive listening device to capture your heart's natural output. We review the printed wave patterns immediately after the test. If your EKG is normal but your palpitations persist, we may coordinate further testing, such as a portable 24-hour Holter monitor, to catch irregular rhythms that occur outside the office. You do not have to live with the anxiety of an unexplained racing heart. If you are experiencing heart palpitations or are due for a comprehensive cardiovascular check-up, we encourage you to visit our website to schedule an appointment online today.