The nurse is caring for a client who is taking a bronchodilator. In what disease process should bronchodilators be used cautiously?
liver failure
renal failure
respiratory failure
heart failure
The Correct Answer is D
A. Liver failure does not have a direct contraindication with bronchodilators, though careful monitoring is needed.
B. Renal failure is not a direct contraindication for bronchodilator use; however, kidney function can affect drug metabolism and clearance.
C. Respiratory failure may necessitate bronchodilator therapy rather than caution, especially in conditions like COPD or asthma where bronchodilators are crucial for management.
D. Heart failure requires caution with bronchodilators because they can lead to increased heart rate and blood pressure, potentially exacerbating heart failure symptoms or leading to arrhythmias.
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Correct Answer is C
Explanation
A. Metformin does not stimulate the pancreas to produce more insulin; that action is characteristic of sulfonylureas.
B. Metformin does not increase the absorption of glucose in the intestines; rather, it works by reducing the amount of glucose released into the bloodstream.
C. Metformin primarily decreases glucose production in the liver and improves insulin sensitivity in peripheral tissues, which helps lower blood sugar levels. This makes it effective for managing type 2 diabetes.
D. While metformin can have effects on fat metabolism, its primary action is not to decrease fat breakdown but to manage blood glucose levels.
Correct Answer is A
Explanation
A. Confirming that the medication prescribed is the drug of choice for the specific microorganism is crucial in ensuring effective treatment, as the right drug will target the identified infection.
B. Teaching the client that significant adverse effects are expected and must be endured is not a supportive approach; the focus should be on managing and minimizing adverse effects rather than accepting them.
C. Administering antihistamines may not be relevant for all patients undergoing anti-infective treatment and is not a primary strategy for ensuring treatment success.
D. Monitoring for signs of arrhythmias or cardiac ischemia is not directly related to ensuring the success of anti-infective treatment; it may be necessary for certain medications but does not address the effectiveness of anti-infectives specifically.