A nurse is evaluating the central venous pressure (CVP) of a client who has sustained multiple traumas. Which of the following interpretations of a low CVP should the nurse make?
Fluid overload
Intracardiac shunt
Hypovolemia
Left ventricular failure
The Correct Answer is C
Choice A Reason: This is incorrect because fluid overload is a condition of excess fluid volume in the body. A client who has fluid overload is more likely to have a high CVP, which indicates increased pressure in the right atrium and vena cava.
Choice B Reason: This is incorrect because an intracardiac shunt is a condition of abnormal blood flow between the chambers of the heart. A client who has an intracardiac shunt may have a normal or high CVP, depending on the direction and magnitude of the shunt.
Choice C Reason: This is correct because hypovolemia is a condition of low fluid volume in the body. A client who has hypovolemia is more likely to have a low CVP, which indicates decreased pressure in the right atrium and vena cava.
Choice D Reason: This is incorrect because left ventricular failure is a condition of impaired pumping function of the left ventricle. A client who has left ventricular failure may have a normal or high CVP, depending on the degree of backward failure and pulmonary congestion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: This choice is incorrect because slowing the rate to 50 mL/hr may not be enough to prevent cerebral edema, which is a common complication of head injury. Cerebral edema is a swelling of the brain tissue due to increased fluid accumulation. It can cause increased intracranial pressure (ICP), which can lead to brain damage or death. Therefore, the nurse should limit the fluid intake of the client with head injury to avoid worsening the condition.
Choice B Reason: This choice is incorrect because increasing the rate to 250 mL/hr may cause fluid overload, which can also increase the ICP and worsen the cerebral edema. Fluid overload is a condition in which the body has too much fluid, which can impair the function of the heart, lungs, and kidneys. Therefore, the nurse should avoid giving too much fluid to the client with head injury.
Choice C Reason: This choice is correct because slowing the rate to 20 mL/hr may help to maintain adequate hydration and electrolyte balance, while preventing fluid overload and cerebral edema. This is a conservative approach that can be used until the client's neurological status and ICP are assessed and monitored.
Choice D Reason: This choice is incorrect because continuing the rate at 125 mL/hr may not be appropriate for the client with head injury, depending on their individual needs and condition. The nurse should adjust the fluid rate according to the client's vital signs, urine output, serum osmolality, and ICP. Therefore, the nurse should not assume that this rate is optimal for the client without further evaluation.
Correct Answer is ["A","C","E"]
Explanation
Choice A Reason: This choice is correct because verifying the prescribed ventilator settings daily is an important intervention to ensure that the client is receiving adequate ventilation and oxygenation. The ventilator settings include parameters such as tidal volume, respiratory rate, fraction of inspired oxygen (FiO2), positive end-expiratory pressure (PEEP), and peak inspiratory pressure (PIP). The nurse should check that the settings match the prescription and report any changes or alarms to the provider.
Choice B Reason: This choice is incorrect because applying restraints if the client becomes agitated is not a recommended intervention to prevent complications. Restraints may cause injury, infection, or psychological distress to the client and increase the risk of ventilator-associated pneumonia (VAP). The nurse should use alternative methods to manage agitation, such as sedation, analgesia, or environmental modification.
Choice C Reason: This choice is correct because administering pantoprazole as prescribed is an important intervention to prevent complications. Pantoprazole is a proton pump inhibitor (PPI) that reduces the production of stomach acid and prevents gastroesophageal reflux disease (GERD) and stress ulcers. These conditions can cause aspiration, bleeding, or infection in clients who are receiving mechanical ventilation.
Choice D Reason: This choice is incorrect because repositioning the endotracheal tube to the opposite side of the mouth daily is not a recommended intervention to prevent complications. Repositioning the endotracheal tube may cause trauma, bleeding, or displacement of the tube, which can compromise the airway and ventilation of the client. The nurse should secure the tube with tape or a device and check its position regularly using chest x-ray or end-tidal CO2 monitoring.
Choice E Reason: This choice is correct because elevating the head of the bed to at least 30° is an important intervention to prevent complications. Elevatin the head of the bed helps to reduce the risk of aspiration, which is the inhalation of gastric contents or secretions into the lungs. Aspiration can cause pneumonia, atelectasis, or respiratory failure in clients who are receiving mechanical ventilation.
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