ATI RN
ATI Capstone Pharmacology Assessment 2 Questions
Question 1 of 5
The nurse is teaching a caregivers' support group for caretakers of older adult patients. The focus is medication compliance. The nurse determines that learning has occurred when the caregivers make which response?
Correct Answer: B
Rationale: A med management box organizes doses, reducing forgotten pills in older adults with memory issues, boosting compliance. Crushing meds risks altering pharmacokinetics (e.g., enteric-coated drugs). Doctor review is proactive but not direct compliance. More education assumes understanding drives adherence, often untrue. The box addresses forgetfulness, a practical fix.
Question 2 of 5
What is the antidote for Heparin?
Correct Answer: B
Rationale: Protamine is the antidote for Heparin. Heparin is an anticoagulant medication that prevents the formation of blood clots. In case of an overdose of Heparin or if there is a need to reverse its effects quickly (such as during surgery), Protamine is administered as the specific antidote. Protamine works by binding to Heparin and neutralizing its anticoagulant effects. Therefore, Protamine is the appropriate antidote to counteract the effects of Heparin.
Question 3 of 5
The nurse plans medication education for a client who receives a prescription for sildenafil (Viagra). What will the best plan by the nurse include?
Correct Answer: C
Rationale: Sildenafil (Viagra), a phosphodiesterase-5 inhibitor for erectile dysfunction, has a recommended dosing limit of one pill per 24 hours to prevent overdose risks like prolonged erections or cardiovascular strain, making this a critical safety instruction. Grapefruit juice actually increases sildenafil levels by inhibiting metabolism, not decreasing effects, which could heighten side effects. Timing is optimal at 1 hour before sex, with effectiveness possible up to 4 hours, not 6, ensuring accurate expectations. Taking it on an empty stomach enhances absorption, as food-especially high-fat meals-delays onset, contrary to the food suggestion. The 24-hour limit is foundational for safe use, balancing efficacy with minimizing adverse effects like headache or hypotension, and aligns with standard prescribing guidelines, making it the priority in client education.
Question 4 of 5
Which food items should the nurse advise a patient taking a monoamine oxidase inhibitor (MAOI) to avoid?
Correct Answer: C
Rationale: MAOIs (e.g., phenelzine) with tyramine-rich foods (chocolate, wine, fava beans) risk hypertensive crisis-per pharmacology-unlike juice/cheese or water/fish. Tyramine avoidance is critical, per diet.
Question 5 of 5
Which of the following describes the action of an agonist on a receptor.
Correct Answer: C
Rationale: An agonist is a substance that binds to a receptor and triggers a biological response. By activating the receptor, an agonist mimics the action of the body's natural ligand that typically binds to the receptor. This activation may lead to a cascade of events within the cell, resulting in a specific physiological response. In contrast, antagonists block the receptor from being activated, while agonists work by binding to the receptor and initiating the desired response.