According to Darwin, genetic variations exist within a species to support which of the following?
a. genotyping
b. concordance
c. adaptation
d. phenotyping
c. adaptation
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A group of nursing students plans to teach a class of sixth-grade girls about menstruation. What correct information will the nursing students teach to the class?
a. Menarche usually occurs around 12 years of age. b. Ovulation occurs regularly from the very first cycle. c. A regular cycle is established by the third period. d. Typically, menstrual flow is heavy and lasts up to 10 days.
Insulin is produced by which cells in the pancreas?
a. alpha c. delta b. beta d. F cells
Which valve is more frequently involved with endocarditis?
a. mitral c. tricuspid b. aortic d. pulmonic
Since the initiation of an antipsychotic drug, a patient complains of light-headedness and dizziness upon standing. Select the most appropriate comment the nurse can offer the patient
a. "This is an unfortunate and permanent effect of this class of drugs." b. "Get up slowly. Tolerance to this effect should develop in 2 to 3 months." c. "The drug must be discontinued immediately to avoid injury." d. "We need to increase your fluid intake, which should fix the problem."