A bifascicular block is when two of the three electrical pathways in your heart’s left ventricle become blocked or damaged. This condition shows up on your EKG as a combination…

Home EKGs can detect slow heart rates (bradycardia) with good accuracy, typically within 1-3 beats per minute of medical-grade devices. However, their reliability depends on proper placement, device quality, and…

A junctional rhythm on EKG shows absent P waves or inverted P waves that appear before, during, or after the QRS complex, with a heart rate typically between 40-60 beats…

A delta wave is an abnormal electrical pattern on an EKG that shows as a slurred upstroke before the main heartbeat spike, indicating a condition called Wolff-Parkinson-White (WPW) syndrome. WPW…

Sick sinus syndrome shows specific EKG signs including slow heart rates below 60 beats per minute, irregular rhythms, and long pauses between heartbeats. You’ll typically see symptoms like dizziness, fatigue,…

Your EKG changes when you breathe because breathing affects your heart’s rhythm through the nervous system and blood flow patterns. This normal variation, called respiratory sinus arrhythmia, shows up as…

Cardiac axis measures the overall direction of electrical activity in your heart as seen on an EKG. It tells doctors which way your heart’s electrical signals are flowing during each…

Home EKG devices can detect signs of ischemia by showing ST-segment depression, T-wave changes, and irregular rhythms that indicate reduced blood flow to your heart muscle. You should look for…

Tall T waves on EKG can signal hyperkalemia (high potassium levels), a serious condition that needs quick medical attention. While some people naturally have taller T waves, peaked or tent-shaped…

Heart blocks on EKG show as delayed or missing electrical signals between the heart’s upper and lower chambers, appearing as prolonged PR intervals or dropped QRS complexes. You can identify…