Pre-op test

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Possible Answers: EKG.

Last seen on: LA Times Crossword 8 Jul 2018, Sunday

Random information on the term “EKG”:

Syncope, also known as fainting, is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery.[1] It is caused by a decrease in blood flow to the brain, usually from low blood pressure.[1] There are sometimes symptoms before the loss of consciousness such as lightheadedness, sweating, pale skin, blurred vision, nausea, vomiting, or feeling warm. Syncope may also be associated with a short episode of muscle twitching.[1] When consciousness and muscle strength are not completely lost, it is called presyncope.[1] It is recommended that presyncope be treated the same as syncope.[1]

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Causes range from non-serious to potentially fatal.[1] There are three broad categories of causes: heart or blood vessel related, reflex also known as neurally mediated, and orthostatic hypotension.[1] Issues with the heart and blood vessels are the cause in about 10% and typically the most serious while neurally mediated is the most common.[1] Heart related causes may include an abnormal heart rhythm, problems with the heart valves or heart muscle and blockages of blood vessels from a pulmonary embolism or aortic dissection among others.[1] Neurally mediated syncope occurs when blood vessels expand and heart rate decreases inappropriately.[1] This may occur from either a triggering event such as exposure to blood, pain, strong feelings or a specific activity such as urination, vomiting, or coughing.[1] This type of syncope may also occur when an area in the neck known as the carotid sinus is pressed.[1] The final type of syncope is due to a drop in blood pressure from standing up.[1] This is often due to medications that a person is taking but may also be related to dehydration, significant bleeding or infection.[1]

EKG on Wikipedia