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Paroxysmal supraventricular tachycardia (PSVT) is a type of supraventricular tachycardia, named for its intermittent episodes of abrupt onset and termination. [ 3 ] [ 6 ] Often people have no symptoms. [ 1 ]
Blood tests may be done to rule out specific underlying causes such as hyperthyroidism, pheochromocytomas, or electrolyte abnormalities. [4] A normal resting heart rate is 60 to 100 beats per minute. A resting heart rate of more than 100 beats per minute is defined as a tachycardia.
The body has several feedback mechanisms to maintain adequate blood flow and blood pressure. If blood pressure decreases, the heart beats faster in an attempt to raise it. This is called reflex tachycardia. This can happen in response to a decrease in blood volume (through dehydration or bleeding), or an unexpected change in blood flow.
Slowed growth, short stature, and low blood glucose levels in infants and toddlers are among a few signs of GH deficiency in children, Waikar says. A child can be born with GHD, or it could be a ...
If an arrhythmia results in a heartbeat that is too fast, too slow, or too weak to supply the body's needs, this manifests as lower blood pressure and may cause lightheadedness, dizziness, syncope, loss of consciousness, coma, persistent vegetative state, or brain death due to insufficient supply of blood and oxygen to the brain.
Research shows that older men and women with low testosterone have lower red blood cell counts and an increased risk of developing anemia. Anemia can produce symptoms like fatigue, weakness, loss ...
This is because elevated blood pressure over the course of several years requires the heart to adapt to the requirement of pumping harder to adequately circulate blood throughout the body. If the heart does this for a prolonged period of time, the left ventricle can experience hypertrophy (grow larger) in a way that decreases the heart's ...
At about 10 p.m. on Oct. 15, a black Chevy Equinox pulled up to a ranch house in the southern New Jersey city of Bridgeton. A group of men in ski masks hopped out and headed for the front door. A ...
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