The mechanism by which penicillin, cephalosporins, and other beta-lactarn ring antibiotics act against bacteria is
A. They prevent the synthesis of the bacterial cell wall by inactivating the bacterial enzymes that make the cell wall.
B. They disrupt the function of the bacterial cell membrane.
C. They attach to ribosomes of the bacterial cell so that the bacterium cannot make needed proteins.
D. They compete with compounds that the bacterium needs in order to grow and divide, thereby inhibiting or stopping the growth of the bacteria.
A
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An ultrasound on a woman who is 32 weeks pregnant reveals the placenta implanted over the entire cervical os. What does the nurse understand best describes this condition?
a. Low-lying placenta b. Marginal placenta previa c. Partial placenta previa d. Total placenta previa
During the initial gathering of data, a patient reveals a weight loss of 17 lb since the death of his spouse 5 weeks earlier. He says that he is not sleeping and has no appetite
What category of unmet needs should be considered by the nurse according to Maslow's hierarchy of needs? a. Physiologic b. Safety and security c. Love and belonging d. Self-actualization
A patient diagnosed with major depression began taking escitalopram (Lexapro) 5 days ago. The patient now says, "This medicine isn't working." The nurse's best intervention would be to:
a. discuss with the health care provider the need to increase the dose. b. reassure the patient that the medication will be effective soon. c. explain the time lag before antidepressants relieve symptoms. d. critically assess the patient for symptoms of improvement.
Difficult or painful urination is termed ________.
Fill in the blank(s) with the appropriate word(s).