Marie Garcia, age 67, reports that her chronic angina has been recurring even though she has been taking nitroglycerin sublingual tablets as prescribed. She tells the nurse that she used to store the tablets on a table by the window, and when she started to use a new batch of tablets, the problem subsided. What I would explain the ineffectiveness of the tablets?
Ms. Garcia developed unstable angina
Exposure to the elements (natural light) caused the drugs to lose their effectiveness
Ms. Garcia developed tolerance to the sublingual form of administration
Ms. Garcia did not follow the correct interval or duration of administration
The Correct Answer is B
Explanation:
A. There is no evidence in the scenario to suggest that Ms. Garcia developed unstable angina.
B. Exposure to light, particularly sunlight, can degrade nitroglycerin, reducing its effectiveness over time.
C. There is no indication that Ms. Garcia developed tolerance to sublingual nitroglycerin in this scenario.
D. Ms. Garcia's storage method for the nitroglycerin tablets, not the interval or duration of administration, likely affected their effectiveness.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. HDL cholesterol is often referred to as "good" cholesterol because it helps remove other forms of cholesterol from your bloodstream, decreasing the risk of heart disease.
B. "Contraindicated" is not a term used to describe cholesterol.
C. "Bad" cholesterol typically refers to LDL (low-density lipoprotein), which deposits cholesterol in the walls of blood vessels.
D. "Lifestyle" is not a term used to categorize cholesterol.
Correct Answer is C
Explanation
A. Verapamil is a calcium channel blocker, not a beta blocker.
B. Captopril is an angiotensin-converting enzyme (ACE) inhibitor, not a beta blocker.
C. Atenolol is a beta blocker commonly used to treat hypertension, angina, and other cardiovascular conditions.
D. Clopidogrel is an antiplatelet medication used to prevent blood clots, not a beta blocker.
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