Nursing Elites

1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?

• A. Serum sodium of 135 mEq/L
• B. Serum potassium of 4.0 mEq/L
• C. Serum bicarbonate of 18 mEq/L
• D. Serum glucose of 300 mg/dL

Correct answer: C

Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.

2. The nurse notes that a client who has undergone a thoracotomy has an increase in a large amount of dark red blood in the chest tube collection chamber. What action should the nurse take?

• A. Document the findings for this procedure as expected
• B. Notify the healthcare provider immediately
• C. Check the tube for kinks or dependent loops
• D. Increase the suction to the chest drainage system

Correct answer: B

Rationale: An increase in a large amount of dark red blood in the chest tube collection chamber may indicate active bleeding. The nurse should notify the healthcare provider immediately to address the situation promptly and prevent further complications. Documenting the findings without taking immediate action could delay necessary interventions. Checking the tube for kinks or dependent loops is a good practice but not the priority when dealing with a potentially life-threatening situation like active bleeding. Increasing the suction without healthcare provider's orders can lead to complications and is not appropriate in this scenario.

3. A male client is admitted with a bowel obstruction and intractable vomiting for the last several hours despite the use of antiemetics. Which intervention should the nurse implement first?

• A. Infuse 0.9% sodium chloride 500 ml bolus
• B. Administer an antiemetic intravenously
• C. Insert a nasogastric tube
• D. Prepare the client for surgery

Correct answer: A

Rationale: The correct first intervention for a male client with a bowel obstruction and intractable vomiting is to infuse 0.9% sodium chloride 500 ml bolus. This intervention is crucial to address the risk of hypovolemia due to excessive vomiting. Administering intravenous fluids will help prevent dehydration, maintain blood pressure, and stabilize the client's condition. Choice B, administering an antiemetic intravenously, may not be effective as the client has already been unresponsive to antiemetics orally. Choice C, inserting a nasogastric tube, may be necessary but is not the priority in this situation. Choice D, preparing the client for surgery, should only be considered after stabilizing the client's fluid and electrolyte balance.

4. The nurse is preparing a community education program on osteoporosis. Which instruction is helpful in preventing bone loss and promoting bone formation?

• A. Recommend weight-bearing physical activity.
• B. Encourage a diet high in dairy products.
• C. Suggest vitamin D supplementation.
• D. Advise avoiding caffeine and alcohol.

Correct answer: A

Rationale: The correct answer is A: Recommend weight-bearing physical activity. Weight-bearing exercises are effective in maintaining bone density and preventing osteoporosis by promoting bone formation. Encouraging a diet high in dairy products (choice B) can provide calcium, but it's not as directly related to bone formation as physical activity. While vitamin D supplementation (choice C) is important for calcium absorption and bone health, it is not directly involved in promoting bone formation. Advising to avoid caffeine and alcohol (choice D) can be beneficial for bone health, but it is not as directly related to promoting bone formation as weight-bearing physical activity.

5. The healthcare provider prescribes an IV solution of isoproterenol (Isuprel) 1 mg in 250 ml of D5W at 300 mcg/hour. The nurse should program the infusion pump to deliver how many ml/hour?

• A. 50 ml/hour
• B. 25 ml/hour
• C. 75 ml/hour
• D. 100 ml/hour

Correct answer: C

Rationale: To calculate the infusion rate, convert 1 mg to 1,000 mcg (1 mg = 1,000 mcg) and then use the formula D/H x Q, where D is the desired dose, H is the dose on hand, and Q is the quantity of solution. In this case, it would be 300 mcg/hour / 1,000 mcg x 250 ml = 75 ml/hour. Therefore, the nurse should program the infusion pump to deliver 75 ml/hour. Choice A (50 ml/hour), Choice B (25 ml/hour), and Choice D (100 ml/hour) are incorrect as they do not correspond to the calculated rate of 75 ml/hour.

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