Critical Care Nursing Questions and Answers PDF

Correct Answer: D

Rationale: The correct answer is D: Pulmonary artery wedge pressure (PAWP). This is crucial in monitoring a patient with a large anterior wall myocardial infarction as it provides information on left ventricular function and fluid status. A high PAWP may indicate left ventricular failure or fluid overload, requiring immediate intervention. A: Central venous pressure (CVP) is not as specific for assessing left ventricular function and may not provide accurate information in this scenario. B: Systemic vascular resistance (SVR) is important in assessing systemic blood flow, but it may not directly indicate left ventricular function in this case. C: Pulmonary vascular resistance (PVR) is more relevant in conditions affecting the pulmonary circulation and may not be as immediately informative in assessing left ventricular function in this context.

Correct Answer: A

Rationale: The correct answer is A: Consult with the pharmacist to adjust medication times to allow periods of sleep or rest between intervals. This is the most appropriate intervention as medication timings can significantly impact sleep patterns of critically ill patients. Adjusting medication times can help synchronize rest periods, promoting uninterrupted sleep. Choice B is incorrect as encouraging constant conversation can disrupt sleep. Choice C is incorrect as the television noise can be stimulating and hinder rest. Choice D is incorrect as leaving the lights on can disrupt the patient's circadian rhythm and negatively impact sleep quality.

Correct Answer: C

Rationale: The correct answer is C: intrarenal. The presence of sediment, crystals, and bacteria in the urinalysis indicates an issue originating within the kidney itself. This suggests a problem like a urinary tract infection or kidney stone causing the severe flank pain. Prerenal and postrenal conditions usually involve issues outside the kidney such as dehydration or urinary tract obstruction, which are not supported by the urinalysis findings. Choice D, not renal related, is incorrect as the symptoms and urinalysis results clearly point towards a renal issue.

Correct Answer: B

Rationale: The correct answer is B: Opioid medications given as needed. Opioids are indicated for managing dyspnea and restlessness in palliative care by providing relief from symptoms. They act as potent analgesics and can help decrease the distress associated with difficult breathing and restlessness. Respiratory therapy treatments (A) and incentive spirometry treatments (C) may not address the immediate discomfort caused by dyspnea and restlessness. Increased hydration (D) may not directly alleviate the symptoms and could potentially worsen the patient's discomfort.

Correct Answer: A

Rationale: The correct answer is A: sepsis. Sepsis is the most common cause of acute kidney injury in critically ill patients due to the systemic inflammatory response causing renal hypoperfusion. Sepsis leads to a decrease in renal blood flow, resulting in acute kidney injury. Fluid overload (B) can contribute to renal dysfunction but is not the primary cause in critically ill patients. Medications (C) can cause kidney injury, but sepsis is more prevalent. Hemodynamic instability (D) is a consequence of sepsis and can lead to acute kidney injury, making it an indirect cause.