A Surgical Individual Just Arrived on the Unit from the Postanesthesia

question 46

Multiple Choice

A surgical individual just arrived on the unit from the postanesthesia care unit.This person's respirations are four per minute and shallow.As the nurse calls for assistance, the person suddenly feels jittery, and breathing quickens.Which of the following feedback loops is operating for the nurse in this situation?

• A)The central nervous system stimulates hypothalamus-releasing factor, which acts on the anterior pituitary gland to secrete thyroid-stimulating hormone (TSH) and stimulates the release of thyroxine (T4) and triiodothyronine (T3).
• B)The central nervous system directly stimulates the release of insulin, which reduces blood glucose levels.
• C)The central nervous system directly stimulates the adrenal medulla to secrete epinephrine and stimulates hypothalamus-releasing factor, which acts on the anterior pituitary gland to secrete adrenocorticotropic-stimulating hormone (ACTH), stimulating the release of cortisol.
• D)The central nervous system stimulates the hypothalamus to synthesize oxytocin and antidiuretic hormone, which are secreted by the posterior pituitary, activating uterine contraction and renal absorption of water.

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Definitions:

Factorial ANOVA

A statistical test used to determine the effect of two or more independent variables on a dependent variable at the same time.

Subjects Measured

Individuals or entities under study in an experiment or survey, from which data is collected.

Research Hypothesis

A specific, testable prediction about the expected outcome of a scientific study.

Interaction

The effect of two or more variables is not simply additive, but depends on the levels of the other variables.