What Is a Normal Sinus Rhythm? Normal sinus rhythm is when your heart beats in a regular, organized way. Your body has a built-in pacemaker called the sinoatrial (SA) node, or sinus node. It uses ...

Sinus arrhythmia is when your heart beats too slowly or too fast. The change of pace may happen when you breathe. This condition is common and usually benign. But, it could indicate an underlying ...

The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...

Normal sinus rhythm 3rd degree AV block (complete heart block) Osborne waves consistent with hypothermia Non-specific ST-T wave abnormalities The ECG findings of hypothermia include a the classic ...

Tachycardia describes when the heart beats faster than normal. Sinus rhythm with tachycardia occurs when the sinus node fires electrical impulses abnormally quickly. Inappropriate sinus tachycardia ...

A 31-year-old woman with no significant medical history presents with intermittent heart palpitations, dizziness, shortness of breath, and fatigue provoked by exercise. Can you make the diagnosis? A ...

Sinus tachycardia is a heart rate that is faster than normal, and it can be triggered by exercise, stress, or anxiety. However, it may also indicate an underlying health problem. Symptoms of sinus ...

Dr. Kathleen Maginot answers the question: 'Abnormal Heart Rhythms in Children?' — -- Question: What types of abnormal heart rhythms are more common in children? Answer :There are many ...

Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia occurs ...