A nurse is assessing a client who has acute respiratory distress syndrome (ARDS). Which of the following findings should the nurse expect?
Hypoxemia due to dead space
Impaired carbon dioxide elimination due to shunting
Decreased pulmonary arterial pressure due to ventilation-perfusion (V/Q) mismatch
Decreased pulmonary compliance due to stiffness
The Correct Answer is D
Choice A Reason:
Hypoxemia due to dead space is not appropriate. Dead space refers to areas of the lung where ventilation occurs but no perfusion takes place. In ARDS, hypoxemia typically occurs due to ventilation-perfusion (V/Q) mismatch and shunting rather than dead space.
Choice B Reason:
Impaired carbon dioxide elimination due to shunting is not appropriate. Shunting occurs when blood bypasses ventilated alveoli, leading to inadequate gas exchange. In ARDS, shunting contributes to hypoxemia, but it doesn't directly impair carbon dioxide elimination.
Choice C Reason:
Decreased pulmonary arterial pressure due to ventilation-perfusion (V/Q) mismatch is incorrect. V/Q mismatch occurs when ventilation and perfusion are mismatched in different areas of the lung. This leads to areas of low ventilation (dead space) and areas of low perfusion (shunting). V/Q mismatch contributes to hypoxemia in ARDS but does not typically lead to decreased pulmonary arterial pressure.
Choice D Reason:
Decreased pulmonary compliance due to stiffness is correct. This is a characteristic feature of ARDS. The inflammation and damage to the alveoli cause them to become stiff, reducing pulmonary compliance and impairing lung expansion during ventilation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
"The nerves just go to sleep when I lie down because no message gets from my brain to the spinal cord." is incorrect because it does not accurately describe the mechanism of peripheral neuropathy. Peripheral neuropathy in diabetes is not simply the nerves "going to sleep" due to lack of communication between the brain and spinal cord.
Choice B Reason:
"The nerve damage may occur for unknown reasons in any individual" is incorrect because while the exact cause of peripheral neuropathy may not always be known, in the context of diabetes mellitus, the link between elevated blood sugar levels and nerve damage is well-established.
Choice C Reason:
"The older I get, there is less blood flowing to my feet. “is incorrect because while decreased blood flow (ischemia) can contribute to peripheral neuropathy in some cases, the primary mechanism in diabetic neuropathy is nerve damage due to hyperglycemia rather than reduced blood flow.
Choice D Reason:
"The elevated blood sugar from my diabetes can cause underlying nerve damage." Peripheral neuropathy is a common complication of diabetes mellitus, particularly when the condition is uncontrolled. Elevated blood sugar levels over time can lead to damage to the nerves, especially those in the feet and legs. This damage can result in symptoms such as numbness, tingling, burning sensations, or pain in the affected areas.
Correct Answer is ["B","C","D","E"]
Explanation
Choice A Reason:
Light sensitivity is incorrect. Light sensitivity (photophobia) is not typically a direct manifestation of a ruptured cerebral aneurysm. However, it may occur as a secondary symptom due to other neurological disturbances or increased intracranial pressure.
Choice B Reason:
Loss of consciousness is correct. Loss of consciousness is a common manifestation of a ruptured cerebral aneurysm, particularly if the bleeding leads to significant brain injury or compression of vital brain structures.
Choice C Reason:
A dilated pupil is correct. A dilated pupil (mydriasis) may occur as a result of compression of the oculomotor nerve (cranial nerve III) by the expanding hematoma or increased intracranial pressure following a ruptured cerebral aneurysm.
Choice D Reason:
Visual disturbances is correct. Visual disturbances, such as blurred vision, double vision (diplopia), or loss of vision, may occur due to compression of the optic nerve or damage to visual pathways as a result of the hemorrhage.
Choice E Reason:
Nausea and vomiting is correct. Nausea and vomiting are common symptoms associated with a ruptured cerebral aneurysm, often due to irritation of the meninges and increased intracranial pressure resulting from the bleeding.
Choice F Reason:
Numbness on one side of the face is incorrect. Numbness on one side of the face is not typically a direct manifestation of a ruptured cerebral aneurysm. However, it may occur if the hemorrhage affects specific regions of the brain responsible for sensation or if there is associated compression of cranial nerves.
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