A nurse is assessing a client's pulmonary artery wedge pressure (PAWP). The nurse should recognize that an elevated PAWP indicates which of the following complications?
Hypotension
Hypovolemia
Cardiogenic shock
Left ventricular failure
The Correct Answer is D
Rationale:
A. Hypotension: Hypotension is typically associated with decreased preload and low PAWP rather than elevated values. An elevated PAWP reflects increased pressure in the left heart, which does not occur with simple hypotension alone.
B. Hypovolemia: Hypovolemia leads to decreased circulating blood volume, reducing preload and PAWP. It is typically marked by low filling pressures, not elevated wedge pressures.
C. Cardiogenic shock: Although cardiogenic shock can be associated with elevated PAWP due to poor cardiac output and fluid backup, it is not as specific a marker as left ventricular failure, which directly affects PAWP.
D. Left ventricular failure: Elevated PAWP reflects increased pressure in the left atrium and pulmonary circulation, which is a hallmark of left-sided heart failure. This elevation occurs because the failing left ventricle cannot efficiently pump blood forward.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
A. Instruct the client to have his testosterone checked in 1 week: Testosterone levels are typically monitored after several weeks of therapy, not within just one week. Early testing may not accurately reflect the medication's effectiveness or stability in the bloodstream.
B. Wear clean gloves to apply the gel: Gloves must be worn, but they should be disposable and protective not simply clean gloves. This prevents accidental transdermal absorption of testosterone by the nurse, which can have hormonal effects, especially in females.
C. Apply the gel to the client's genital region: Testosterone gel should not be applied to the genital area due to the risk of irritation and unpredictable absorption. Recommended sites include the shoulders, upper arms, or abdomen where the skin is intact and dry.
D. Advise the client to wait 1 hr before showering or swimming: The client should be instructed to wait at least 1 hour to allow for full absorption of the gel. Showering or swimming too soon can reduce the effectiveness of the medication.
Correct Answer is B
Explanation
Rationale:
A. "Apply the ointment to the skin every 4 hr.": Nitroglycerin topical ointment is applied every 6 to 8 hours, depending on the provider's instructions. Applying it every 4 hours may increase the risk of side effects such as hypotension or tolerance due to excessive dosing frequency.
B. "Spread the ointment in a thin, even layer.": The medication should be applied in a thin, consistent layer to allow for proper absorption through the skin. The dose is usually measured and spread using applicator paper, avoiding rubbing or massaging it in.
C. "Apply the ointment to the forearm.": The preferred application sites are hairless areas of the chest, back, or upper arms. The forearm is not typically used due to variability in absorption and the presence of thinner skin and more movement.
D. "Massage the ointment into the skin.": Nitroglycerin ointment should never be massaged into the skin. Massaging can lead to unpredictable absorption rates and an increased risk of hypotension or headache due to rapid systemic absorption.
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