How is oxygen uptake calculated using gas (air) analysis?
Gas (air) analysis can determine oxygen uptake (VO2 ) as follows:
The air exhaled by a person being tested is analyzed by a metabolic cart that measures the difference in oxygen content between the person's exhaled air and the atmosphere. The air we breathe contains 21 percent oxygen; thus, VO2 can be assessed by establishing the difference between 21 percent and the percentage of oxygen left in the air the person exhales, according to the total volume of air taken into the lungs.
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The CDC reports that the average length ofstay in a hospital for U.S. citizens is 4.8 days. The following data represent the length of hospital stays for 10 patients released recently from a local hospital: 5, 5, 4, 6, 2, 1, 3, 6, 5, 4. Find the mean of these numbers. Is the mean length of hospital stay for these patients higher or lower than the national average?
A) Mean = 4.1 days ;lower than the national average B) Mean = 5.1 days ;higher than the national average C) Mean = 3.6 days ;lower than the national average D) Mean = 4.6 days ;higher than the national average E) Mean = 3.1 days ;higher than the national average
The bronchi divide into smaller branches called ________.
Fill in the blank(s) with the appropriate word(s).
Helen needs to be more assertive if she wants her friends to understand what she wants and why. Summarize the four ways that Helen can assert herself
Animals, insects, food, and water can all transmit potentially infectious
A) resistance. B) antibodies. C) allergens. D) pathogens.