A nurse is monitoring the pulmonary artery wedge pressure (PAWP) for a client. The nurse should identify that a reading of 17 mm Hg is an indication of which of the following conditions?
Right ventricular failure
Fluid volume deficit
Mitral regurgitation
Afterload reduction
The Correct Answer is C
Choice A Reason: This is incorrect because right ventricular failure would cause an increase in right atrial pressure and right ventricular end-diastolic pressure, but not in PAWP, which reflects left atrial pressure and left ventricular end- diastolic pressure.
Choice B Reason: This is incorrect because fluid volume deficit would cause a decrease in PAWP, as there would be less blood volume in the pulmonary circulation.
Choice C Reason: This is correct because mitral regurgitation would cause an increase in PAWP, as the blood would back up into the left atrium and pulmonary veins due to the incompetent mitral valve.
Choice D Reason: This is incorrect because afterload reduction would cause a decrease in PAWP, as there would be less resistance to the left ventricular ejection and less blood volume in the pulmonary circulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: This is incorrect because hypervolemia is a condition of excess fluid volume in the body. A client who has an extensive burn injury is more likely to have hypovolemia, which is a condition of low fluid volume, due to fluid loss from the damaged skin and capillaries.
Choice B Reason: This is incorrect because metabolic alkalosis is a condition of high blood pH and high bicarbonate level. A client who has an extensive burn injury is more likely to have metabolic acidosis, which is a condition of low blood pH and low bicarbonate level, due to increased production of lactic acid and ketones from tissue hypoxia and breakdown.
Choice C Reason: This is correct because low hemoglobin is a common laboratory finding in a client who has an extensive burn injury. Hemoglobin is the protein in red blood cells that carries oxygen. A client who has an extensive burn injury may have low hemoglobin due to hemolysis, which is the destruction of red blood cells, or hemorrhage, which is the loss of blood.
Choice D Reason: This is incorrect because hyperkalemia is a condition of high blood potassium level. A client who has an extensive burn injury may have hyperkalemia in the early phase of injury, due to cell damage and potassium release, but it is usually transient and followed by hypokalemia, which is a condition of low blood potassium level, due to fluid loss and potassium depletion.
Correct Answer is B
Explanation
Choice A Reason: This is incorrect because monitoring the client's electrolyte levels is not the highest priority, as it does not address the immediate risk of airway obstruction or aspiration.
Choice B Reason: This is correct because suctioning saliva from the client's mouth is the highest priority, as it prevents airway obstruction and aspiration, which can lead to respiratory distress and infection.
Choice C Reason: This is incorrect because recording the client's intake and output is not the highest priority, as it does not address the immediate risk of airway obstruction or aspiration.
Choice D Reason: This is incorrect because performing passive range of motion on each extremity is not the highest priority, as it does not address the immediate risk of airway obstruction or aspiration.
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