Selective toxicity, or the ability to affect certain proteins or enzyme systems in the infecting organism, is a much sought-after quality in an anti-infective agent. How many anti-infective agents have this quality?
A) 75%
B) 50%
C) 25%
D) 0%
D
Feedback:
Although anti-infective agents target foreign organisms infecting the body of a human host, they do not possess selective toxicity, which is the ability to affect certain proteins or enzyme systems used by the infecting organism but not by human cells. Because all living cells are somewhat similar, however, no anti-infective drug has yet been developed that does not affect the host. Therefore Options A, B, and C are incorrect.
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Which describes the nurse's role for an older patient with a chronic illness?
a. Implement an individualized therapeutic regimen that brings about a cure. b. Provide caring to help the patient live at the optimal level of health and wellness. c. Suggest that the patient accept eventual death to reduce burdens on the patient's family. d. Encourage the patient to minimize the utilization of services to control costs.
During client teaching, the nurse must inform the client prescribed a tricyclic antidepressant (TCA) to not expect to see a difference in mood or anxiety level for up to:
a. 5 days b. 2 to 3 weeks c. 4 to 5 weeks d. 6 weeks
The nurse is preparing to administer an enteral feeding to a patient who receives 300 mL of Isocal over 30 minutes every 4 hours. The nurse checks the residual prior to initiating the feeding and notes a residual amount of 50 mL of formula
Which action will the nurse take next? a. Administer the feeding as ordered. b. Administer the feeding over 60 minutes. c. Hold the feeding and notify the patient's provider. d. Wait 1 hour and recheck the residual again.
Vaccines are one of the most important methods of controlling and preventing communicable diseases. Because many children receive their immunizations at public health departments,
nurses play a major role in the effort to increase immunization coverage of infants and toddlers. Which of the following is often a role of public health nurses? 1. Reading the Mortality and Morbidity Weekly Report to investigate new vaccines that are available 2. Requiring that children have all their immunizations before going to public school 3. Tracking children known to be at risk for underimmunization 4. Leading teams of health care workers to enforce laws related to immunizations