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1. Which pathology is associated with an asthma condition?
- A. Chronic dilation and inflammation of the bronchi.
- B. Recurrent spasms of the airways accompanied by edema and mucus production.
- C. Progressive loss of lung function due to destruction of alveolar walls.
- D. Infection of the lung parenchyma.
Correct answer: B
Rationale: The correct answer is B: Recurrent spasms of the airways accompanied by edema and mucus production. Asthma is characterized by bronchospasms, inflammation, swelling of the airways, and increased mucus production. This leads to airway constriction, making it difficult to breathe. Choices A, C, and D do not represent the typical pathology seen in asthma. Chronic dilation and inflammation of the bronchi (Choice A) is more characteristic of bronchiectasis, progressive loss of lung function due to destruction of alveolar walls (Choice C) is seen in conditions like emphysema, and infection of the lung parenchyma (Choice D) is more related to conditions like pneumonia.
2. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 52, PaCO2 59, HCO3 33. Which statement describes the most likely cause of the simultaneous increase in both PaO2 and PaCO2?
- A. The client is hyperventilating due to anxiety.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client is experiencing respiratory alkalosis.
- D. The client is experiencing metabolic acidosis.
Correct answer: B
Rationale: Oxygen therapy can reduce the hypoxic drive in COPD patients, leading to increased PaCO2 levels while improving oxygenation (PaO2). In this case, the increase in PaO2 and PaCO2 is due to the reduction of the hypoxic drive by the supplemental oxygen. Choice A is incorrect because hyperventilation would lead to decreased PaCO2. Choice C is incorrect as the ABG values do not indicate respiratory alkalosis. Choice D is incorrect as the ABG values do not support metabolic acidosis.
3. The nurse is teaching a client with gastroesophageal reflux disease (GERD) about dietary modifications. Which food should the client avoid?
- A. Applesauce
- B. White rice
- C. Coffee
- D. Bananas
Correct answer: C
Rationale: The correct answer is C: Coffee. Coffee should be avoided by clients with GERD as it can relax the lower esophageal sphincter, leading to an increase in GERD symptoms. Choices A, B, and D are not directly associated with worsening GERD symptoms and can be included in moderation in the diet of a client with GERD.
4. Which instruction should the nurse provide a client who was recently diagnosed with Raynaud's disease?
- A. Avoid cold temperatures completely.
- B. Take medications only during flare-ups.
- C. Wear gloves when removing packages from the freezer.
- D. Limit physical activity to avoid stress.
Correct answer: C
Rationale: The correct instruction for a client with Raynaud's disease is to wear gloves when handling cold items to prevent vasospasm. Raynaud's disease is characterized by vasospasm in response to cold or stress, leading to reduced blood flow to extremities. Wearing gloves when removing packages from the freezer helps minimize exposure to cold temperatures and can prevent triggering vasospasms. Choices A, B, and D are incorrect. Avoiding cold temperatures completely is impractical and may not always be possible. Taking medications only during flare-ups does not address prevention strategies, and limiting physical activity to avoid stress is not a primary intervention for Raynaud's disease.
5. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
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