EKG Testing in Plano, TX: What It Is, Why It Matters, and What We Look For

Your heart beats roughly 100,000 times a day. Each beat is an electrical event — a precisely timed sequence of signals that causes the chambers of your heart to contract in the right order, at the right moment. When something disrupts that electrical system, the consequences can range from a minor nuisance to a life-threatening emergency.

An electrocardiogram (EKG or ECG) records those electrical signals and lets us see exactly what’s happening. It’s one of the most valuable diagnostic tools in internal medicine — and at Sophia Rahman MD in Plano, TX, we offer it right here in the office.

What Does an EKG Actually Show?

An EKG measures the electrical activity of your heart across 12 leads — different angles that give us a three-dimensional picture of how your heart is functioning. From a single EKG tracing, we can identify:

Arrhythmias — abnormal heart rhythms, including atrial fibrillation, bradycardia (too slow), tachycardia (too fast), and heart block
Signs of a previous heart attack — old myocardial infarctions often leave a permanent signature on the EKG
Active ischemia — reduced blood flow to the heart muscle, which can indicate an ongoing event
Hypertrophy — enlargement of the heart chambers, often from long-standing hypertension
Conduction abnormalities — problems with how electrical signals travel through the heart
Electrolyte imbalances — critically high or low potassium and other minerals affect the EKG in distinctive ways

A single EKG provides a snapshot. Serial EKGs over time reveal trends and changes.

What the Procedure Looks Like

An EKG is painless and takes less than 10 minutes from start to finish.

Preparation

You’ll lie on the exam table. We’ll place 10 small electrodes (sticky patches) on your chest, arms, and legs. No needles. No shocks. The machine only records — it doesn’t send electricity into your body.

Recording

The EKG machine captures your heart’s electrical activity for about 10 seconds. You’ll be asked to lie still and breathe normally.

Analysis

I review the tracing immediately. Many findings are clear-cut; others require context — your symptoms, your history, other test results — to interpret accurately.

Results Discussion

We discuss findings with you the same day. If something requires follow-up — a referral to a cardiologist, a stress test, a Holter monitor — we coordinate that directly.

Who Should Get an EKG?

EKGs are ordered routinely and for specific indications:

Routine screening:

Pre-operative evaluation before elective surgery
Annual cardiovascular screening for patients over 40 with cardiac risk factors
Baseline EKG in patients starting certain medications (some antidepressants, antiarrhythmics, and other drugs affect the QT interval)

Symptoms that warrant an EKG:

Chest pain or pressure
Palpitations (feeling your heartbeat, skipped beats, racing heart)
Shortness of breath, especially at rest or with mild exertion
Dizziness or fainting (syncope)
Unexplained fatigue

Monitoring known conditions:

Atrial fibrillation
Heart failure
Patients on medications that affect heart rhythm

When the EKG Finds Something

A normal EKG is reassuring. An abnormal EKG is the beginning of a conversation, not a verdict. Many EKG findings are benign — early repolarization, minor nonspecific changes — that don’t require treatment but do warrant documentation.

For findings that need further evaluation, we coordinate referrals to cardiology, order additional testing, and stay involved in your care throughout the process.

Heart concerns shouldn’t wait. Book an appointment — EKG testing is available right here in Plano without a specialist referral.

Sophia Rahman MD is located at 1212 Coit Rd, Suite 105, Plano, TX 75075. Accepting new patients in Plano, Frisco, McKinney, Allen, Murphy, and the surrounding Collin County area.