ATI RN
Pharmacology ATI Quizlet Questions
Question 1 of 5
Which of the following is suitable for immediate treatment of an 18-year-old woman presenting with weight loss, tachycardia and a goitre?
Correct Answer: D
Rationale: Weight loss, tachycardia, and goitre suggest hyperthyroidism (e.g., Graves'). Verapamil controls rate but not thyroid function. Radioactive iodine (131I) treats long-term, not immediately. Carbamazepine is for seizures, L-thyroxine worsens hyperthyroidism. Atenolol, a beta-blocker, immediately reduces tachycardia and symptoms by blocking adrenergic effects, suitable for acute management while awaiting antithyroid drugs (e.g., propylthiouracil). Its symptomatic relief is critical in hyperthyroid crises.
Question 2 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 3 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 4 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.
Question 5 of 5
A 59-year-old man with hypertension, gastroesophageal reflux disorder, AIDS, seizure disorder, and depression is currently maintained on multiple medications, including propranolol. He does not have his medication list at his current office visit with his primary care physician. His blood pressure is 180/100 mm Hg. The patient states that he is taking all of his medications as scheduled. Which of the following drugs is the most likely explanation of this finding?
Correct Answer: D
Rationale: The patient's uncontrolled hypertension (180/100 mm Hg) despite propranolol, a β-blocker, suggests a drug interaction. Cimetidine , an H2 blocker, inhibits CYP2D6, but propranolol's metabolism is via CYP1A2/CYP2D6-effect is minimal. Fluoxetine and Paroxetine , SSRIs, also inhibit CYP2D6, but their impact on propranolol is less significant. Rifampin induces CYP enzymes, reducing propranolol levels, but isn't listed as likely. Ritonavir (E), a protease inhibitor for AIDS, potently inhibits CYP3A4 and CYP2D6, increasing propranolol levels, yet here it paradoxically fails to control BP, possibly due to complex polypharmacy or adherence issues. Ritonavir's interaction is most likely given his AIDS treatment, affecting propranolol's efficacy or metabolism, leading to this outcome.