Positive or abnormal: Doctors may conclude the stress test ispositive for cardiac ischemia—meaning the heart muscle wasn't getting adequate oxygenated blood during the stress. There are certain ECG and imaging changes that would support this conclusion. There are also clinical findings that could su...
Lunch With The Professor, Wed - The Abnormal ECG: What Should I Do?B. Hansen
Sylvia has sometimes noticed wheezing when she has an asthma attack. What does wheezing indicate? A. There is an absence of spontaneous breathing. B. An absence of oxygen C. Partially obstructed airway D. Abnormal buildup of carbon dioxide in her bloo ...
Does being nervous affect ECG? Anxiety can profoundly alter the ECG, probably via changes in autonomic nervous system function, as evidenced by the ECG normalizing with manoeuvres that normalize autonomic function (reassurance, rest, and anxiolytics and beta-blockers), with catecholamine infusion prod...
This abnormality was first noted in the 1920s, when X-rays revealed this abnormal placement. Fortunately, this type of looping defect does not involve structural abnormalities of the heart or other organs. In some cases, cilia — the tiny hair-like structures — in the nose and lungs move ...
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You will walk on a treadmill while connected to an ECG machine. This test is 60-70% accurate in showing blockages in blood flow in 1 or more of the 3 coronary arteries. Sometimes its readings may be falsely abnormal for people taking certain medications or who have certain medical problems...
You will walk on a treadmill while connected to an ECG machine. This test is 60-70% accurate in showing blockages in blood flow in 1 or more of the 3 coronary arteries. Sometimes its readings may be falsely abnormal for people taking certain medications or who have certain ...
An ECG can be used to diagnose many common heart problems and may detect: Arrhythmias or abnormal heart rhythm Blocked or narrowed arteries in your heart or coronary artery disease If you have had a previous heart attack Continuous ECG monitoring may be recommended if your symptoms come and go...
Atrial fibrillation is an irregular heart rhythm associated with disorganized electrical activity in the upper two chambers of the heart. Abnormal electrical impulses cause the atria to beat very fast and in an uncoordinated manner. This is called fibrillation. Paroxysmal atrial fibrillation indicates tha...