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Also known as 'effort angina', this refers to the classic type of angina related to myocardial ischemia.A typical presentation of stable angina is that of chest discomfort and associated symptoms precipitated by some activity (running, walking, etc.) with minimal or non-existent symptoms at rest or after administration of sublingual nitroglycerin. [11]
A positive test to these inducing agents is defined as a ≥90% (some experts require lesser, e.g. ≥70%) constriction of involved arteries. Typically, these constrictions are fully reversed by rapidly acting nitroglycerin. [4] [16]
A normal minute volume while resting is about 5–8 liters per minute in humans. [1] Minute volume generally decreases when at rest, and increases with exercise. For example, during light activities minute volume may be around 12 litres. Riding a bicycle increases minute ventilation by a factor of 2 to 4 depending on the level of exercise involved.
An estimated 5.8 million people in the U.S. have Alzheimer’s disease and related dementias, but the condition can be tricky to diagnose.Patients usually are put through a series of tests, and it ...
The Tecumseh step test is an exercise test that researchers use to determine a person's cardiovascular fitness level. The Tecumseh step test is a modified version of the Harvard Step Test, [1] and was developed by Professor Henry J. Montoye at the Department of Epidemiology, School of Public Health, University of Michigan. The main differences ...
The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after suggesting multiple populations could go extinct in mere decades.
Psychologically, smaller tasks are easier to achieve, so pushing yourself to take a five-minute daily walk is easier than trying to complete a 35-minute walk once, Milkman said.
The Apgar score is a quick way for health professionals to evaluate the health of all newborns at 1 and 5 minutes after birth and in response to resuscitation. [1] It was originally developed in 1952 by an anesthesiologist at Columbia University, Virginia Apgar, to address the need for a standardized way to evaluate infants shortly after birth.