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S0735109716336816_mmc1
S0735109716336816_mmc1

1 - toggenburg ski patrol
1 - toggenburg ski patrol

... 51. In humans, the body systems interact with each other to maintain a stable internal environment. An example of this is the nervous system, which works with the cardiovascular system to maintain a steady blood pressure. The ability of an organism to adjust its physiologic processes to maintain a ...
1 - Huff Hills Ski Patrol
1 - Huff Hills Ski Patrol

... 51. In humans, the body systems interact with each other to maintain a stable internal environment. An example of this is the nervous system, which works with the cardiovascular system to maintain a steady blood pressure. The ability of an organism to adjust its physiologic processes to maintain a ...
Practice on the Empirical Rule and Normal Distribution I. In a Normal
Practice on the Empirical Rule and Normal Distribution I. In a Normal

... Practice on the Empirical Rule and Normal Distribution I. In a Normal distribution, what percent of the values lie… 1. below the mean? ____________ 2. above the mean? ____________ 3. within one standard deviation of the mean? ____________ 4. within two standard deviations of the mean? ____________ 5 ...
1

Reference range

In health-related fields, a reference range or reference interval is the range of values for a physiologic measurement in healthy persons (for example, the amount of creatinine in the blood, or the partial pressure of oxygen). It is a basis for comparison (a frame of reference) for a physician or other health professional to interpret a set of test results for a particular patient. Some important reference ranges in medicine are reference ranges for blood tests and reference ranges for urine tests.The standard definition of a reference range (usually referred to if not otherwise specified) originates in what is most prevalent in a reference group taken from the population. However, there are also optimal health ranges that are those that appear to have the optimal health impact on people.Values within the reference range (WRR) are those within the normal distribution and are thus often described as within normal limits (WNL). The limits of the normal distribution are called the upper reference limit (URL) or upper limit of normal (ULN) and the lower reference limit (LRL) or lower limit of normal (LLN). In health care–related publishing, style sheets sometimes prefer the word reference over the word normal to prevent the nontechnical senses of normal from being conflated with the statistical sense. Values outside a reference range are not necessarily pathologic, and they are not necessarily abnormal in any sense other than statistically. Nonetheless, they are indicators of probable pathosis. Sometimes the underlying cause is obvious; in other cases, challenging differential diagnosis is required to determine what is wrong and thus how to treat it.
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