Which of the following describes why an ACE inhibitor is prescribed to a patient with Heart Failure?
decreases contractility
increases preload
decreased afterload
increases sympathetic stimulation
The Correct Answer is C
A. Decreases contractility: This is incorrect because ACE inhibitors do not directly affect myocardial contractility. They primarily work on the vascular system.
B. Increases preload: This is incorrect as ACE inhibitors do not increase preload. They may decrease preload by reducing fluid retention.
C. Decreased afterload: ACE inhibitors lower systemic vascular resistance (afterload) by inhibiting the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This reduces the workload on the heart.
D. Increases sympathetic stimulation: This is incorrect because ACE inhibitors actually reduce sympathetic stimulation by preventing the vasoconstrictive and sodium-retaining effects of angiotensin II.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "To the best of your knowledge, are your immunizations up to date?" Immunization status is important but is not directly related to the symptoms of jaundice and increased abdominal girth.
B. "Have you ever worked in an occupation where you might have been exposed to toxins?" While toxin exposure could contribute to liver disease, it is less likely the immediate cause compared to alcohol consumption.
C. "How many alcoholic drinks do you typically consume in a week?" Alcohol consumption is a major risk factor for liver disease, which can lead to jaundice and ascites (increased abdominal girth).
D. "Has anyone in your family ever experienced symptoms similar to yours?" Family history is less relevant for acute symptoms of jaundice and abdominal girth, which are more likely related to lifestyle factors like alcohol use.
Correct Answer is B
Explanation
A. Notify the health care provider: While it may eventually be necessary to notify the healthcare provider, the immediate action should involve confirming the balloon pressure, which is within the scope of respiratory therapy.
B. Call respiratory therapy to obtain the pressure within the balloon: This is the most appropriate action. Respiratory therapists are skilled in managing and measuring the cuff pressure to ensure it is within the correct range (typically 20-30 cm H2O).
C. Add air to the balloon port: Adding air without knowing the current pressure could lead to over inflation, which might cause tracheal injury.
D. Remove air from the balloon port: Similarly, removing air could lead to underinflation, increasing the risk of aspiration or inadequate ventilation.
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