Excessive vagal stimulation can be caused by severe depression. How would this be reflected in a...

Excessive vagal stimulation can be caused by severe depression. How would this be reflected in a routine physical examination?

Expert Solution

Excessive vagal stimulation of heart can cause bradycardia or low heart rate. Normally, the heart beats 60 to 100 times a minute at rest, but with bradycardia, it goes down to less than 60 beats a minute. With bradycardia, the brain and other organs may not get adequate oxygen and cause the symptoms such as fainting or near-fainting, dizziness or lightheadedness, fatigue, shortness of breath, chest pains and confusion or memory problems. For healthy young adults and trained athletes, bradycardia isn't considered a health problem.

Bradycardia can be caused by heart tissue damage, heart disease or heart attack, infection of heart tissue (myocarditis), heart surgery, hypothyroidism, chemical imbalance, obstructive sleep apnea and medications. A pacemaker implanted can correct bradycardia and help the heart maintain a normal rate. Bradycardia resulting from excessive vagal stimulation of the heart, can be determined by taking the pulse.

Sydney Mullin answered 2 years ago

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