Nokea
Aminoglycosides work by irreversibly binding to the 30 ribosomal subunit.
- A. TRUE
- B. FALSE
Correct Answer: A
Rationale: Aminoglycosides irreversibly bind to the 30S ribosomal subunit, disrupting bacterial protein synthesis and leading to bactericidal effects.
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Being competent in the use of information technology in clinical practice is expected in professional nurses. Advanced practice competence includes the ability to:
- A. Search for information using the most common search engines
- B. Serve as content experts in developing, implementing, and evaluating information systems
- C. Write programs to assure the integrity of health information
- D. Use information technology to prescribe drugs
Correct Answer: B
Rationale: Advanced practice nurses contribute expertise in IT system development and evaluation.
A nurse working in radiology administers iodine to a patient who is having a computed tomography (CT) scan. The nurse working on the oncology unit administers chemotherapy to patients who have cancer. At the Public Health Department, a nurse administers a measles-mumps-rubella (MMR) vaccine to a 14-month-old child as a routine immunization. Which branch of pharmacology best describes the actions of all three nurses?
- A. Pharmacoeconomics
- B. Pharmacotherapeutics
- C. Pharmacodynamics
- D. Pharmacokinetics
Correct Answer: B
Rationale: Pharmacology is the study of the biologic effects of chemicals. Nurses are involved with clinical pharmacology or pharmacotherapeutics, which is a branch of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease. The radiology nurse is administering a drug to help diagnose a disease. The oncology nurse is administering a drug to help treat a disease. Pharmacoeconomics includes any costs involved in drug therapy. Pharmacodynamics involves how a drug affects the body and pharmacokinetics is how the body acts on the body.
Amphetamine should not be taken with.....
- A. Paracetamol
- B. Aspirin
- C. MAO inhibitors
- D. Benzimidazole
Correct Answer: C
Rationale: Amphetamines combined with MAO inhibitors can cause a hypertensive crisis due to excessive catecholamine accumulation, a well-known dangerous interaction.
Therapeutic index of a drug is an indicator of
- A. Potency
- B. Safety
- C. Toxicity
- D. Efficacy
Correct Answer: C
Rationale: Therapeutic index (TD50/ED50) measures the margin between therapeutic and toxic doses.
A nurse is preparing to initiate IV therapy for an older adult client. Which of the following actions should the nurse plan to take?
- A. Use a disposable razor to remove excess hair on the extremity.
- B. Select the back of the client's hand to the catheter.
- C. Entered the veins by using a blood pressure cuff.
- D. Direct the client to raise his arm above his heart
Correct Answer: B
Rationale: The back of the hand is a common site for older adults due to accessible veins and reduced risk of complications.