Aspirin inhibits
a. platelet formation.
b. cholesterol synthesis.
c. triglyceride synthesis.
d. lipoprotein formation.
a. Aspirin inhibits platelet formation by irreversibly inhibiting cyclooxygenase, an enzyme found in all cell membranes of all cells, including platelets that are responsible for the formation of thromboxane A2 . Thromboxane A2 causes aggregation of platelets and vasoconstriction. This effect persists for the lifetime of the platelet (about 1 week).
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Which of the following is TRUE regarding abuse/neglect?
a. geriatric abuse is typically found in nursing homes and other institutions b. abuse commonly is the sexual physical contact that results in emotional harm c. abusers typically are people who lose control and commit a single violent act d. geriatric abuse may result from neglect in addition to being physical or emotional
Under the Hospital Survey and Construction Act of 1946, the responsibility for hospital planning
a. remained in the hands of the federal government b. was delegated to local county and city governments c. was given to the states d. was given to private insurers
Which of the following results in a fuzzy duplicate radiographic image?
a. Setting the exposure timer too short b. Setting the exposure timer too long c. Leaving the viewbox light on when opening the box of duplicating film d. Leaving the original radiographs in the film mount when duplicating
Most apnea monitors operate using the principle of:
I. body plethysmography II. impedance plethysmography III. inductive plethysmography IV. capnometry A) I and II B) II and III C) I and III D) III and IV