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. When caring for a 7-week-old infant with hypothyroidism, the nurse explains that the prevention of what complication is dependent on the administration of oral thyroid replacement therapy and is critical for the child?

• A. Excessive growth
• B. Cognitive impairment
• C. Damage to the nervous system
• D. Damage to the urinary system

Correct answer: B

Rationale: The correct answer is B: Cognitive impairment. The treatment of choice for congenital and acquired hypothyroidism is oral thyroid hormone replacement therapy. Prompt treatment is especially critical in the infant with congenital hypothyroidism to avoid permanent cognitive impairment. Excessive growth (Choice A) is not a common complication of hypothyroidism in infants. Damage to the nervous system (Choice C) and damage to the urinary system (Choice D) are not typically associated with untreated hypothyroidism in infants.

3. What is the most effective therapy for maintaining remission of acute lymphoblastic leukemia in a child?

• A. Surgery to remove enlarged lymph nodes
• B. Long-term chemotherapy
• C. Nutritional supplements to enhance blood cell production
• D. Blood transfusions to replace ineffective red cells

Correct answer: B

Rationale: The correct answer is B: Long-term chemotherapy. In the case of acute lymphoblastic leukemia, the most effective approach for maintaining remission is long-term chemotherapy, particularly with methotrexate, a chemotherapeutic agent. Surgery to remove enlarged lymph nodes (choice A) is not the primary treatment for leukemia. Nutritional supplements (choice C) may be beneficial for overall health but are not the mainstay of leukemia treatment. Blood transfusions (choice D) are used to manage anemia in leukemia but do not address the underlying disease process.

4. A client is currently receiving an infusion labeled as 5% dextrose injection 500 ml with heparin sodium 25,000 units at 14 mL/hour per pump. A prescription is received to change the rate of the infusion to heparin 1,000 units/hour. How many ml/hour should the nurse program the infusion pump?

• A. 16 ml/hour.
• B. 18 ml/hour.
• C. 20 ml/hour.
• D. 22 ml/hour.

Correct answer: C

Rationale: To deliver 1,000 units/hour from a solution with 25,000 units in 500 ml, the rate should be set to 20 ml/hour. This is calculated by determining that the solution has 50 units/ml (25,000 units / 500 ml = 50 units/ml) and then dividing the required 1,000 units/hour by 50 units/ml, resulting in 20 ml/hour. Therefore, the nurse should program the infusion pump to deliver heparin at 20 ml/hour. Choices A, B, and D are incorrect as they do not align with the calculated rate of 20 ml/hour.

5. During a paracentesis, two liters of fluid are removed from the abdomen of a client with ascites. A drainage bag is placed, and 50 ml of straw-colored fluid drains within the first hour. What action should the nurse implement?

• A. Palpate for abdominal distention
• B. Send fluid to the lab for analysis
• C. Continue to monitor the fluid output
• D. Clamp the drainage tube for 5 minutes

Correct answer: C

Rationale: Continuing to monitor the fluid output is the appropriate action in this situation. Monitoring the fluid output helps the nurse assess the client's ongoing response to the procedure and detect any sudden changes, such as increased or decreased drainage rate, which could indicate complications. Palpating for abdominal distention, sending fluid to the lab for analysis, or clamping the drainage tube are not necessary actions at this point, as the priority is to monitor the client's condition post-procedure.

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