You are a nursing instructor and you are talking with a group of prenursing students in an anatomy and physiology class about negative feedback loops
You explain that negative feedback loops sense changes in the set points of the body and act to offset these deviations. What examples could you give the students of negative feedback loops? (Mark all that apply.)
A) Serum glucose levels
B) Acid-base balance
C) Temperature
D) Blood clotting
E) Labor onset
Ans: A, B, C
Feedback: These mechanisms work by sensing deviations from a predetermined set point or range of adaptability and triggering a response aimed at offsetting the deviation. Blood pressure, acid–base balance, blood glucose level, body temperature, and fluid and electrolyte balance are examples of functions regulated through such compensatory mechanisms. Options D and E are incorrect because they are representative of positive feedback loops.
You might also like to view...
A nurse suspects that a female patient may have difficulty increasing the protein in her diet. The patient is most likely
1. Hindu. 2. Jewish. 3. Asian. 4. Mexican.
A nurse wants to have a clear understanding of the overall health status of a community and to identify populations at risk. Which of the following actions should be taken by the nurse?
a. Complete a community assessment b. Perform a population needs assessment c. Evaluate past programs in the community d. Develop program resources for the com-munity
A nurse is preparing to conduct a health history for a patient who is confined to bed. How should the nurse position herself?
A) standing at the end of the bed B) standing at the side of the bed C) sitting at least 6 feet from the beside D) sitting at a 45-degree angle to the bed
A client was admitted to the psychiatric ICU with schizophrenia, disorganized type. In addition to hallucinations and delusions, other assessments that the nurse would expect to find include what?
A) Blunted inappropriate affect, withdrawal, incoherence, and regression B) Abnormal, bizarre posturing; stupor; echolalia; and negativism C) Hostility, aggression, persecutory hallucinations, and argumentativeness D) Depression, elation, hyperactivity, and pressure of speech