When the client eats lunch, serum glucose levels rise. As the pancreas releases insulin to push glucose into the cell, serum glucose levels decline. Normal serum glucose levels signal the pancreas to stop secreting insulin
The nurse describes this process as: 1. Positive feedback.
2. Homeostasis.
3. Negative feedback.
4. Diabetes mellitus.
3
Rationale: Negative feedback is the signal sent by the body to turn off hormone secretion in order to maintain homeostasis. The normal serum glucose level acts as a negative feedback mechanism for the pancreas, turning off the secretion of insulin. Homeostasis is the balance the body affects in order to maintain normal function. Positive feedback stimulates the body to do something. Diabetes mellitus is a disease process characterized by abnormal glucose metabolism.
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An example of descriptive statistics is:
1. A positive correlation between breastfeeding and infant weight gain. 2. The infant mortality rate in the state of Oklahoma. 3. A causal relationship between the number of sexual partners and sexually transmitted diseases. 4. The total number of spontaneous abortions in drug-abusing women as compared with non–drug-abusing women.
The nurse is working with a pregnant client who has six children. The ages of the children range from six months to twelve years of age. An example of health restoration when working with this client would include education regarding:
1. Prenatal care. 2. Appropriate nutrition. 3. Dental hygiene. 4. Effective contraception to prevent subsequent pregnancies.
Your patient is on long-term mechanical ventilation and becomes very frustrated when he tries to communicate. What intervention should you perform to assist the patient?
A) Assure the patient that everything will be all right and that he should not become upset. B) Ask a family member to interpret what the patient is trying to communicate. C) Ask the physician to wean the patient off the mechanical ventilator to allow the patient to talk. D) Ask the patient to write, use a picture board, or spell words with an alphabet board.
Why are convenience samples used so frequently in nursing research? (Select all that apply.)
a. More subjects consent if they can understand the sampling method. b. Obtaining a true random sample may be impossible. c. There is low risk of sampling bias. d. There are limited subjects available. e. Nonrandom sampling affects only generalizability, not study integrity.