ATI RN
ATI Pharmacology Made Easy 4.0 Questions
Question 1 of 5
The following drugs are partial agonists:
Correct Answer: C
Rationale: Buprenorphine is a partial agonist at opioid receptors, providing analgesia with a ceiling effect, reducing risk of respiratory depression.
Question 2 of 5
Which of the following adverse effects is associated with levothyroxine (Synthroid) therapy?
Correct Answer: C
Rationale: Levothyroxine (Synthroid) is a synthetic thyroid hormone used to treat hypothyroidism. Overdose or excessive dosing can lead to symptoms of hyperthyroidism, including tachycardia (rapid heart rate), palpitations, and anxiety. Hypotension and bradycardia are not typical adverse effects of levothyroxine. Constipation is more commonly associated with hypothyroidism, not its treatment. Therefore, tachycardia is the correct answer as it reflects the potential for overstimulation of the cardiovascular system due to excessive thyroid hormone levels.
Question 3 of 5
A patient is taking aspirin for secondary prevention of myocardial infarction and is experiencing moderate gastrointestinal upset. The nurse will contact the patient™s provider to discuss changing from aspirin to which of the following?
Correct Answer: D
Rationale: Coated aspirin refers to enteric-coated aspirin, which is a type of aspirin that has a special coating designed to help protect the stomach lining and reduce gastrointestinal upset. Unlike regular aspirin, enteric-coated aspirin is less likely to cause irritation to the stomach and therefore may be a better option for patients experiencing gastrointestinal issues. Switching to coated aspirin can help alleviate the patient's symptoms while still providing the antiplatelet benefits needed for secondary prevention of myocardial infarction. It is important for the nurse to communicate with the provider to discuss this alternative option and ensure the patient's safety and well-being.
Question 4 of 5
The physician ordered a loading dose of medication for the patient; it is to be followed by a lower dose. When the patient receives the lower dose, she says to the nurse, 'I think my doctor made a mistake; my medication dose is too low.' What is the best response by the nurse?
Correct Answer: C
Rationale: A loading dose rapidly achieves therapeutic levels, followed by a lower maintenance dose, a standard approach explained clearly here. Half-life isn't shortened-it's about concentration. ‘Always' oversimplifies. Side effect reduction isn't the goal-efficacy is. The larger initial dose's purpose reassures the patient, aligning with pharmacokinetic principles for quick action.
Question 5 of 5
When taking Digoxin, low levels of what can cause toxicity?
Correct Answer: A
Rationale: When taking Digoxin, low levels of potassium can cause toxicity because digoxin competes with potassium for binding sites on the sodium-potassium pump in cardiac cells. Low potassium levels can lead to increased binding of digoxin to the pump, resulting in increased intracellular calcium levels and an increased risk of digoxin toxicity, including arrhythmias. Therefore, monitoring and maintaining adequate potassium levels are crucial in patients taking digoxin to prevent toxicity.