Showing posts with label what. Show all posts
Showing posts with label what. Show all posts
Wednesday, March 18, 2015
What is the highest place on Earth
What is the highest place on Earth?
The highest place on earth is the top of Mount Everest, which stands between the countries of Tibet and Nepal, in Asia.
To do that, we must go to where the land begins—at the top of the sea.
That way, we can measure all the land that slopes up from the sea to the very top of the mountain.
When we measure something this way, we are measuring from sea level. All the land in the world is either above or below sea level.
The top of Mount Everest, the highest place in the world, is 29,028 feet (8,848 meters) above sea level.
First man to climb Mount Everest
On May 29, 1953, Sir Edmund Hillary of New Zealand and Tenzing Norgay of Nepal became the first man to climb Mount Everest.
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Tenzing Norgay |
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Sir Edmund Hillary |
Sunday, March 15, 2015
What is left shift
A left shift is an increase in the number of immmature neutrophils or polymorphonuclear leukocytes (PMNs). These are called band or stab neutrophils, and in more severe cases there may be metamyelocytes or myelocytes present. Mature (normal) neutrophils are referred to as segmented neutrophils or segs. In a normal differential there should be 0-6 bands per 100 WBCs and no metamyelocytes or myelocytes.
These immature cells make it into the bloodstream because chemical signals (cytokines, complement, etc.) released from the site of inflammation stimulate the bone marrow to release them prematurely. They continue to mature after entering the bloodstream, and the left shift will usually disappear within a few days if the cause of the inflammation is addressed.
An increased neutrophil count with a left shift is typically associated with bacterial infection, and may be increased in other inflammatory conditions or post-surgically.
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