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?
Cardiogenic shock
Left ventricular failure
Hypotension
Hypovolemia
The Correct Answer is B
Choice A reason: Cardiogenic shock involves reduced cardiac output, typically with low PAWP due to decreased preload from poor heart function. Elevated PAWP reflects left atrial pressure buildup, not characteristic of cardiogenic shock alone, which is distinct from heart failure, requiring specific hemodynamic management.
Choice B reason: Elevated PAWP indicates left ventricular failure, where the heart cannot pump blood effectively, causing pulmonary congestion. This increases left atrial pressure, leading to pulmonary edema, a hallmark of heart failure. Diuretics and inotropes are needed to reduce fluid overload and improve cardiac function.
Choice C reason: Hypotension is a symptom, not a direct complication of elevated PAWP. It may occur in heart failure due to reduced cardiac output, but elevated PAWP specifically signals left heart dysfunction, not hypotension itself, which is a systemic response rather than a primary cardiac issue.
Choice D reason: Hypovolemia reduces blood volume, lowering PAWP due to decreased preload. Elevated PAWP suggests fluid overload or left ventricular dysfunction, not hypovolemia, which presents with low central venous pressure and dehydration signs, requiring fluid resuscitation rather than management of heart failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Frequent swallowing is a key indicator of post-tonsillectomy hemorrhage, as the child may swallow blood from bleeding in the surgical site. This subtle sign requires urgent assessment to prevent airway obstruction or significant blood loss, aligning with clinical priorities, making it the correct finding.
Choice B reason: Increased drowsiness may indicate pain medication effects or general recovery but is not specific to hemorrhage. While concerning, it is less urgent than frequent swallowing, which directly suggests bleeding, making this finding less indicative of hemorrhage in this context.
Choice C reason: Elevated pain is expected post-tonsillectomy due to surgical trauma and does not specifically indicate hemorrhage. Pain may persist regardless of bleeding, so this finding is less reliable than frequent swallowing for identifying potential hemorrhage, making it incorrect.
Choice D reason: Diminished breath sounds suggest respiratory complications like atelectasis or obstruction, not hemorrhage. Bleeding would more likely present with swallowing or visible blood. This finding is unrelated to tonsillectomy hemorrhage, making it an incorrect indicator for this complication.
Correct Answer is B
Explanation
Choice A reason: Thinking about wanting the procedure shows indecision, not consent understanding. Informed consent requires comprehension of the procedure, risks, and benefits, ensuring voluntary agreement. Contemplation alone is incomplete, failing to confirm the client’s grasp of the consent form’s legal purpose.
Choice B reason: Stating that signing indicates permission reflects understanding of informed consent, which documents voluntary agreement after receiving procedure details, risks, and benefits. This aligns with ethical and legal standards, confirming the client’s comprehension of the consent form’s role in authorizing surgery.
Choice C reason: Asking about risks indicates engagement but not consent understanding. It suggests a need for more information, not confirmation of the form’s purpose. While important, it does not reflect comprehension of the consent process as clearly as acknowledging the act of signing.
Choice D reason: Wanting to discuss concerns with the doctor shows the client seeks clarification, not that they understand the consent form’s purpose. It indicates an ongoing process, not confirmation of the form’s role in granting permission, unlike acknowledging the signing’s significance.
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