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 D
Explanation
D. The priority focus in the acute management of hyperosmolar hyperglycemia is improving hydration status. Patients with HHS are severely dehydrated due to the osmotic diuresis caused by extremely high blood glucose levels. Rapid rehydration is critical to prevent shock, improve organ perfusion, and reduce blood glucose levels.
A. It's important to consider age-related changes in any patient but this is not the immediate priority in the acute management of hyperosmolar hyperglycemia. The primary concern is addressing the acute, life-threatening aspects of the condition.
B. Monitoring blood glucose levels is critical in managing hyperosmolar hyperglycemia. However, while it is essential to track the BG levels to guide insulin therapy and assess the response to treatment, it is not the immediate priority in terms of interventions needed to stabilize the patient initially.
C. Determining the underlying cause of hyperosmolar hyperglycemia, such as an infection or other illness, is important for comprehensive treatment. However, it is a secondary priority to stabilizing the patient’s current acute condition.
Correct Answer is A
Explanation
A. Sucralfate works by forming a protective barrier over the ulcer site. It adheres to the ulcer, shielding it from the harmful effects of gastric acid, pepsin, and bile salts. This protection allows the ulcer to heal by preventing further irritation and damage.
B. Medications that prevent gastric acid secretion are typically proton pump inhibitors (PPIs) or H2 receptor antagonists. Sucralfate does not reduce or inhibit the production of gastric acid; instead, it protects the ulcer from the acid already present.
C. Antacids are the type of medication that neutralize gastric acid. Sucralfate does not neutralize acid; it acts locally at the ulcer site to create a protective coating.
D. Antibiotics are used to kill Helicobacter pylori, the bacteria often responsible for causing peptic ulcers. Sucralfate does not have antibacterial properties and does not target or eliminate bacteria.
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