ATI LPN
Cardiovascular Med Surg Questions Questions
Question 1 of 5
A medical student is doing a summer research project that involves administering beta2-receptor agonists to rats to determine the physiologic changes. Which of the following would be expected following steady state intravenous dosing of agent X, a beta2 agonist?
Correct Answer: B
Rationale: Beta2 agonists cause glycogenolysis, leading to hyperglycemia.
Question 2 of 5
A 23-year-old woman develops the sudden onset of congestive heart failure. Her condition rapidly deteriorates and she dies in heart failure. At autopsy, patchy interstitial infiltrates composed mainly of lymphocytes are found, some of which surround individual myocytes. What is the most likely cause of this patient's heart failure?
Correct Answer: D
Rationale: Viral myocarditis (e.g., coxsackievirus) causes lymphocytic infiltrates and acute heart failure, a common cause in young adults with rapid deterioration.
Question 3 of 5
In a 62 year old man who has been a roofer for 25 years and a smoker for 10 years, which of the following cancers would he be most likely prone to developing?
Correct Answer: A
Rationale: Pleural mesothelioma is strongly linked to asbestos exposure (common in roofers), outweighing smoking-related lung cancer risk in this context.
Question 4 of 5
The right ventricle pumps blood to the
Correct Answer: B
Rationale: The right ventricle pumps deoxygenated blood to the lungs via the pulmonary artery for oxygenation.
Question 5 of 5
When administering digoxin, the nurse should hold the medication if the client's apical heart rate is less than____ bpm.
Correct Answer: C
Rationale: Digoxin should be withheld if the apical pulse is below 60 bpm for adults.