Nursing Elites

1. 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.

2. 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.

3. A client with chronic heart failure is being discharged with a new prescription for furosemide. Which instruction should the nurse include in the discharge teaching?

• A. Increase your intake of potassium-rich foods.
• B. Restrict your fluid intake to 1 liter per day.
• C. Avoid salt substitutes containing potassium.
• D. Weigh yourself once a week.

Correct answer: A

Rationale: The correct answer is to instruct the client to increase their intake of potassium-rich foods. Furosemide is a loop diuretic that can lead to potassium loss due to increased urinary excretion. Potassium-rich foods can help prevent hypokalemia, a potential side effect of furosemide. Restricting fluid intake (choice B) may not be suitable for all patients with heart failure, and a general restriction of 1 liter per day is not typically recommended. Avoiding salt substitutes containing potassium (choice C) is not a priority teaching point in this scenario. Weighing oneself once a week (choice D) is important for monitoring fluid status, but increasing potassium-rich foods is more directly related to the potential side effects of furosemide.

4. The wife of a client with Parkinson's disease expresses concern because her husband has lost so much weight. Which teaching is best for the nurse to provide?

• A. Invite friends over regularly to share meal times
• B. Encourage the client to drink clear liquids between meals
• C. Coach the client to make an intentional effort to swallow
• D. Talk to the healthcare provider about prescribing an appetite stimulant

Correct answer: A

Rationale: The best teaching for the nurse to provide is to invite friends over regularly to share meal times. This can help in making meal times more enjoyable for the client with Parkinson's disease, potentially encouraging him to eat more. Encouraging clear liquids between meals (choice B) may not address the underlying issue of weight loss. Coaching the client to make an intentional effort to swallow (choice C) may not be effective if the weight loss is due to other factors related to Parkinson's disease. While prescribing an appetite stimulant (choice D) could be an option, it is usually recommended to explore non-pharmacological interventions first, making choice A the most appropriate initial teaching intervention.

5. Which laboratory results should the nurse anticipate to be abnormal in a child with hemophilia?

• A. Prothrombin time
• B. Bleeding time
• C. Platelet count
• D. Partial thromboplastin time

Correct answer: D

Rationale: In a child with hemophilia, the nurse should anticipate an abnormality in the partial thromboplastin time (PTT) due to the deficiency in clotting factors. Prothrombin time, bleeding time, and platelet count are typically normal in hemophilia. Prothrombin time measures the extrinsic pathway of coagulation and is not affected in hemophilia. Bleeding time assesses platelet function, which is normal in hemophilia as the issue lies with clotting proteins, not platelets. Platelet count is also expected to be normal unless there is another underlying condition affecting platelet production or function.

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