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 D
Explanation
Choice A: Eliciting the gag reflex is a way to assess cranial nerve IX (glossopharyngeal) and X (vagus), which are responsible for the sensation and motor function of the pharynx and larynx.
Choice B: Testing visual acuity is a way to assess cranial nerve II (optic), which is responsible for the sense of vision.
Choice C: Observing for facial symmetry is a way to assess cranial nerve VII (facial), which is responsible for the motor function of the facial muscles and the sensation of taste.
Choice D: Checking the pupillary response to light is a way to assess cranial nerve III (oculomotor), which is responsible for the motor function of most of the eye muscles, including those that control pupil size and lens shape.
Correct Answer is D
Explanation
Choice A Reason: This is incorrect because respiratory alkalosis is characterized by a high pH and a low PaCO2, indicating that the client is hyperventilating and losing too much carbon dioxide.
Choice B Reason: This is incorrect because metabolic acidosis is characterized by a low pH and a low bicarbonate level, indicating that the client has an excess of metabolic acids or a loss of base.
Choice C Reason: This is incorrect because metabolic alkalosis is characterized by a high pH and a high bicarbonate level, indicating that the client has an excess of base or a loss of metabolic acids.
Choice D Reason: This is correct because respiratory acidosis is characterized by a low pH and a high PaCO2, indicating that the client is hypoventilating and retaining too much carbon dioxide.
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