You and your partner were among several rescuers on a call involving a house fire in which a 4-year-old girl died. That night, your partner states that he did not sleep well and is extremely bothered by the little girl's death. The next day he calls you and states that he is so upset that he is now having chest pain. Your response would be:
A) "Why don't you request a week off of work to get things sorted out."
B) "Maybe you should get an appointment with a behavioral health professional."
C) "Perhaps we need to have a critical incident stress debriefing so we can all talk."
D) "You really need to get yourself to the emergency department to get checked out."
D
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The four levels of measurement are nominal, ordinal, interval, and ratio. Nominal measures classify elements into categories of a variable that are exhaustive and mutually exclusive, and represent characteristics or attributes of a variable. They are the lowest level of measurements. There is no rank-order relationship among categories, and the investigator cannot measure the distance between categories. When numbers are assigned to the categories, they mainly serve as codes for the purpose of data collection and analysis, but have no numerical meanings. Ordinal measures refer to those indicators or variables whose attributes may be logically rank-ordered along some progression. They may also be used to allow respondents to rank certain items in terms of their preference. Ordinal
measurement is more advanced than nominal measurement. In addition to the rank-order function, ordinal measurement contains all the characteristics of a nominal measure, including classification, exhaustiveness, and exclusiveness. Interval measures refer to those variables whose attributes are not only rank-ordered but are separated by equal distances. Interval measures are more advanced than either nominal or ordinal measures and contain all the properties of the others. Interval measures do not have a true zero, and zero is merely arbitrary. Because of this arbitrary-zero condition, there are very few interval measures in health services research. Very often, interval measures are mixed together with ratio measures, called interval-ratio measures, and the arbitrary-zero requirement is ignored. Ratio measures are similar to interval measures, except that ratio measures are based on a nonarbitrary or true zero point. The true-zero property of ratio measures makes it possible to divide and multiply numbers meaningfully and thereby form ratios. Like interval measures, ratio measures are a higher level of measurement than nominal and ordinal measures, and contain all their properties. What will be an ideal response?
When you discuss the mechanics of breathing, which expression of Poiseuille's law do you use?
a. P = ? R c. = P ÷ R b. = P ÷ R d. = 1/
____, an arrest of bleeding or of circulation, is a critical factor when patients are being considered for surgical procedures or being treated for trauma, or for patients with clotting disorders who are receiving coagulation therapy.
A. Hemolysis B. Serostasis C. Serolysis D. Hemostasis
A hardening of the fatty plaque deposits within the arteries is ________.
Fill in the blank(s) with the appropriate word(s).