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The cerebral blood volume value of gray matter is about 3.5 +/- 0.4 ml/100g, and the white matter is about 1.7 +/- 0.4 ml/100g. The gray matter is nearly twice that of white matter. [3] In both white and gray matter, cerebral blood volume decreases by about 0.50% per year with increasing age. [4]
The prognosis is improved if clinical death is caused by hypothermia rather than occurring prior to it; in 1999, 29-year-old Swedish woman Anna Bågenholm spent 80 minutes trapped in ice and survived with a near full recovery from a 13.7 °C core body temperature. It is said in emergency medicine that "nobody is dead until they are warm and dead."
~5 per 1,000 per year [1] Syncope ( ( syncope ⓘ ) , commonly known as fainting or passing out , is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery. [ 1 ]
Cerebral blood flow (CBF) is the blood supply to the brain in a given period of time. [8] In an adult, CBF is typically 750 millilitres per minute or 15.8 ± 5.7% of the cardiac output. [9] This equates to an average perfusion of 50 to 54 millilitres of blood per 100 grams of brain tissue per minute. [10] [11] [12]
Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels. [1] Bleeding can occur internally , or externally either through a natural opening such as the mouth , nose , ear , urethra , vagina or anus , or through a puncture in the skin .
As cancer has been linked to alcohol use, per the surgeon general's new advisory, addiction experts offer helpful tips to cut back on drinking in a safe, healthy way.
Image credits: windexfresh #5. I took out salary continuance insurance until I was 65 instead of just the 2 years I was originally thinking. I was only 35 when I did that.
In the months since, one of Isabella’s bronchitis follow-up appointments cost about $1,100 — a big chunk of the roughly $35,000 the Colorado family makes per year.