What is the desired peripheral capillary oxygen saturation (Spo2) level in the patient with chronic obstructive pulmonary disease?
92% to 95%
85% to 88%
95% to 100%
88% to 92%
The Correct Answer is A
A. This range is generally considered acceptable for most patients with COPD. It provides a balance between ensuring adequate oxygenation while avoiding the risk of oxygen toxicity. Oxygen saturation levels within this range can help alleviate symptoms of hypoxemia without causing hyperoxia.
B. Oxygen saturation levels below 90% can lead to significant hypoxemia and exacerbate respiratory distress in individuals with COPD. Maintaining oxygen saturation levels above 90% is typically recommended to prevent complications associated with hypoxemia.
C. This range is appropriate for some patients but it may not be ideal for all patients with COPD. Oxygen saturation levels at the higher end of this range (e.g., 100%) can increase the risk of oxygen toxicity in patients with COPD who retain carbon dioxide (CO2) due to their chronic respiratory condition.
D. Oxygen saturation levels within this range help to balance the need for oxygen supplementation with the risk of hyperoxia and oxygen toxicity. However, individual patient factors, such as the severity of COPD, baseline oxygen saturation levels, and comorbidities, should be considered when determining the target range for oxygen saturation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Oatmeal is a good source of fiber, which can help manage blood sugar levels. Whole-grain toast provides complex carbohydrates and fiber, and using an artificial sweetener in oatmeal reduces sugar intake. Tea is a good beverage choice as it does not contain sugar or calories if not sweetened.
B. This option is less appropriate for a patient with diabetes. While eggs are a good source of protein, bacon is high in saturated fat and sodium, which is not ideal for cardiovascular health. Orange juice contains a high amount of natural sugar and can cause a rapid increase in blood glucose levels. Coffee is fine if consumed without sugar or high-fat creamers.
C. Whole-grain toast with peanut butter provides fiber, protein, and healthy fats, which are beneficial. Skim milk is a good source of calcium and protein. However, the inclusion of orange juice is problematic due to its high sugar content, which can spike blood sugar levels.
D. While grapefruit is a low-sugar fruit, cranberry juice often contains added sugars and can increase blood glucose levels. A bagel, even with sugar-free jelly, is high in refined carbohydrates, which can cause a rapid rise in blood sugar.
Correct Answer is C
Explanation
C. Good control of blood glucose levels and blood pressure is essential in reducing the risk of diabetic retinopathy and its progression. Research has shown that maintaining tight glycemic control and managing hypertension can significantly decrease the likelihood and severity of retinopathy in patients with diabetes.
A. Laser surgery is a treatment option for certain complications of diabetic retinopathy, such as retinal hemorrhage or retinal detachment. However, it's essential to emphasize that prevention through good glycemic control and regular eye exams is key to reducing the risk of these complications, rather than relying solely on surgical interventions after they occur.
B. Cataracts are more common in individuals with diabetes and can be surgically corrected but this statement does not directly address the concern about retinopathy. Cataracts and retinopathy are separate ocular complications of diabetes, each requiring different management strategies.
D. Diabetes remains one of the leading causes of blindness in the United States, primarily due to its association with diabetic retinopathy. While advancements in diabetes management and eye care have helped reduce the incidence of blindness, it is still a significant concern for individuals with diabetes.
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