How Long Does the Test Itself Take?
A standard resting EKG typically records only a brief snapshot of heart activity, often around 10 seconds. Attaching the electrodes accounts for most of the remaining time, so the procedure finishes within five minutes. The total visit may take longer because it can include registration, medical history review, preparation, and discussion of your symptoms and results. Staff also review your medical history and current symptoms before the technician begins the recording.
A technician places ten small adhesive electrodes on your chest, arms, and legs before starting. These pads connect by wire to a machine that reads the electrical signals your heart produces. The electrodes only detect the electrical signals produced by your heart. No needles, injections, or electrical stimulation are involved. Most patients report only a slight pulling sensation when staff remove the adhesive pads afterward.
What Happens During an EKG?
You will lie flat on an examination table while the EKG machine records for a short period. Stay still and breathe normally, since shivering, talking, or shifting an arm distorts the tracing. A distorted result often forces the technician to repeat the recording, which lengthens your visit.
The machine produces a tracing, the familiar pattern of peaks and dips seen on a monitor. Each cluster of marks represents one heartbeat and the electrical signal that traveled through the muscle. Your physician reads this pattern for arrhythmia, evidence of a prior heart attack, or restricted blood flow. The tracing can also reveal an enlarged chamber or thickening in the walls of the heart.
How Should You Prepare?
An EKG requires almost no preparation, which makes it one of the simplest cardiac tests available. Wear clothing you can open or remove at the chest, because the pads sit directly on skin. A two-piece outfit works better than a dress and will speed up the entire process. Avoid lotion, oil, or heavy moisturizer on your chest that morning, since residue weakens adhesion. Poor contact between skin and electrode produces a faint signal and reduces the quality of results.
Bring a current list of every medication you take, including supplements and over-the-counter products. Certain drugs, among them beta blockers and digoxin, visibly alter the appearance of the tracing. Your physician needs that information to interpret the results correctly and avoid an inaccurate conclusion.
When Will You Receive Your Results?
Results frequently arrive within minutes of the recording, though the timing depends on your situation. The machine generates a preliminary computerized interpretation as soon as the technician stops the recording. Many physicians review the tracing with the patient before that person leaves the examination room. Complex cases sometimes go to a cardiologist for a second reading, which adds a day or two.
An EKG captures a single snapshot of your heart during one brief window of time. Rhythm problems that come and go can hide from that snapshot and produce a normal result. For that reason, your physician may add a Holter monitor to track your heart across several days. A stress test serves a different purpose by showing how the organ performs under physical exertion.
Schedule Your Heart Evaluation
Bharmal Internal Medicine performs EKGs on site, so patients avoid a separate trip to an outside lab. Our physicians read the tracing during your visit and explain what the pattern reveals about your heart. Call (817) 784-0052 to schedule an appointment or to ask whether this test suits your symptoms.