A nurse is caring for a group of clients in a medical unit. Which of the following clients is at the highest risk for developing osmotic cerebral edema?
A client with a decreased potassium level
A client with a decreased serum glucose
A client with an increased hemoglobin A1C
A client with an increased creatinine level
The Correct Answer is B
Choice A Reason:
A client with a decreased potassium level is incorrect. Hypokalemia (decreased potassium level) can cause various neurological symptoms, but it doesn't directly lead to osmotic cerebral edema.
Choice B Reason:
When plasma glucose levels are rapidly lowered, an osmotic gradient develops between the brain and plasma, which can lead to cerebral edema. Brain cells pull water from the plasma, resulting in widespread edema.
Choice C Reason:
While HbA1c is an important marker of diabetes control and may indicate poor long-term management, it does not directly relate to the acute metabolic derangements (e.g., rapid osmotic shifts, severity of acidosis) that predispose to cerebral edema in DKA.
Choice D Reason:
A client with an increased creatinine level is incorrect. Elevated creatinine levels typically indicate kidney dysfunction or dehydration, but they don't directly cause osmotic cerebral edema.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A Reason:
African American clients is appropriate. Research suggests that African Americans have a lower prevalence of MS compared to White Americans, but they tend to have more severe disease progression and higher disability rates when diagnosed with MS.
Choice B Reason:
White American clients: Individuals of European descent, including White Americans, have the highest prevalence of MS, particularly those of northern European ancestry. MS is more common in populations of northern European descent compared to other racial and ethnic groups.
Choice C Reason:
East Asian clients: East Asians, including individuals of Chinese, Japanese, and Korean descent, have historically had lower rates of MS compared to individuals of European descent. However, MS prevalence appears to be increasing in East Asian populations, possibly due to changes in lifestyle and environmental factors.
Choice D Reason:
Hispanic or Latino clients: Studies suggest that the prevalence of MS is lower in Hispanic/Latino populations compared to White Americans but higher than in African Americans. However, there is considerable variation in MS prevalence among different Hispanic/Latino subgroups.
Choice E Reason:
Navajo Indian clients: Native American populations, including Navajo Indians, have been reported to have a lower prevalence of MS compared to individuals of European descent. However, limited data are available on MS prevalence and incidence in specific Native American tribes, and more research is needed to fully understand the disease burden in these populations.
Correct Answer is D
Explanation
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.
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