ATI RN
Pharmacology ATI Quizlet Questions
Question 1 of 5
A pregnant woman who is having labor pains is receiving an opioid analgesic. Which of the following medications should be ready in case a respiratory depression occurs?
Correct Answer: B
Rationale: Naloxone (Narcan) is the antidote for opioid-induced respiratory depression and should be readily available when administering opioid analgesics during labor. It works by reversing the effects of opioids on the respiratory system, restoring normal breathing. Oxycodone, meperidine, and morphine are opioids and would exacerbate respiratory depression. Therefore, naloxone is the correct medication to have on hand.
Question 2 of 5
Which statement is false:
Correct Answer: C
Rationale: Higher potency (lower dose for effect) can coexist with lower efficacy (max effect), true, as potency reflects affinity, not ceiling effect. Higher receptor affinity increases potency, true, per receptor theory. Lower potency doesn't mandate lower efficacy; a less potent drug can achieve the same max effect with more dose, making this false. Higher potency with equal efficacy is true (e.g., partial agonists). This pharmacodynamic distinction is vital for drug selection, where efficacy often trumps potency.
Question 3 of 5
The student nurse asks the nursing instructor why he needs to take anatomy and physiology, as well as microbiology, when he only wants to learn about pharmacology. What is the best response by the instructor?
Correct Answer: C
Rationale: Anatomy, physiology, and microbiology underpin pharmacology, enabling nurses to grasp drug actions and patient responses, enhancing care through informed medication use. As an outgrowth oversimplifies their integration. Curriculum mandates explain requirements, not value. Understanding is key, but applying it to care-like knowing antibiotic targets or drug effects on organs-grounds pharmacology in practice, making it the best rationale.
Question 4 of 5
The home health nurse notes that the elderly patient doubled up on his pain medication, even though the prescribed dose was at a therapeutic level. The patient says, 'If one pill is good, two pills are better.' Which statement best describes the result of the patient's action?
Correct Answer: D
Rationale: Doubling a therapeutic dose exceeds the plateau-efficacy maxes out, but side effects (e.g., sedation) rise with excess, especially in the elderly with slower clearance. Tolerance needs chronic use, not one event. More relief assumes linear gain, not true. Tolerance requiring more is future, not immediate. Side effects reflect pharmacodynamics, a key risk.
Question 5 of 5
A patient taking which of the following medications should avoid foods high in tyramine?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.