A threshold dose-response relationship indicates that any dose, regardless of amount, can be expected
to produce a biologic response.
A linear dose-response relationship indicates that the biologic response is directly proportional to the
dose.
a. The first statement is true. The second statement is false.
b. The first statement is false. The second statement is true.
c. Both statements are true.
d. Both statements are false.
b. A nonthreshold dose-response relationship indicates that any dose, regardless of amount, can be expected to produce a biologic response. A linear dose-response relationship indicates that the biologic response is directly proportional to the dose.
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For a given transpulmonary pressure gradient and inflation time, which of the following lung units would exhibit the greatest change in volume?
a. A unit with high resistance and low com-pliance b. A unit with high resistance and normal compliance c. A unit with normal resistance and low compliance d. A unit with normal resistance and normal compliance