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 is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should be closely monitored?

• A. Serum potassium level
• B. Hemoglobin level
• C. White blood cell count
• D. Serum calcium level

Correct answer: A

Rationale: The correct answer is A: Serum potassium level. When a client with chronic kidney disease is receiving erythropoietin therapy, monitoring serum potassium levels is crucial due to the risk of developing hyperkalemia. Erythropoietin can stimulate red blood cell production, leading to an increase in potassium levels. Monitoring potassium helps prevent complications associated with hyperkalemia, such as cardiac arrhythmias. Choices B, C, and D are incorrect because while hemoglobin levels are relevant in assessing the effectiveness of erythropoietin therapy, monitoring potassium levels is more critical in this scenario.

3. A client with end-stage renal disease (ESRD is scheduled for hemodialysis. Which laboratory value should the nurse monitor closely before the procedure?

• A. Serum creatinine
• B. Serum potassium
• C. Serum sodium
• D. Hemoglobin

Correct answer: B

Rationale: Before hemodialysis in a client with end-stage renal disease (ESRD), monitoring serum potassium closely is crucial. ESRD patients are at risk of hyperkalemia, which can lead to severe cardiac complications. Checking serum potassium levels helps in assessing and managing this electrolyte imbalance. Serum creatinine (Choice A) is a marker of kidney function but is not the most critical value to monitor before hemodialysis. Serum sodium (Choice C) may be affected in renal disease, but potassium is a more crucial electrolyte to monitor. Hemoglobin (Choice D) is essential for assessing anemia in ESRD but is not the primary focus before hemodialysis.

4. A client with a tracheostomy has thick, tenacious secretions. Which intervention should the nurse include in the plan of care?

• A. Encourage the client to drink plenty of fluids.
• B. Perform deep suctioning every 2 to 4 hours.
• C. Increase humidity in the client's room.
• D. Administer a mucolytic agent.

Correct answer: C

Rationale: Increasing humidity in the client's room can help liquefy thick secretions and facilitate easier airway clearance in a client with a tracheostomy. Encouraging the client to drink plenty of fluids can be beneficial for overall hydration but may not directly address thick secretions. Deep suctioning every 2 to 4 hours can be harmful and cause trauma to the airway lining. Administering a mucolytic agent should be done under the healthcare provider's order and may not be the initial intervention for thick secretions.

5. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which laboratory value requires immediate intervention?

• A. Serum glucose of 300 mg/dL
• B. Serum potassium of 4.5 mEq/L
• C. Serum bicarbonate of 15 mEq/L
• D. Serum pH of 7.28

Correct answer: D

Rationale: A serum pH of 7.28 indicates metabolic acidosis in a client with diabetic ketoacidosis (DKA), requiring immediate intervention. In DKA, the body produces excess ketones, leading to acidosis. Monitoring and correcting the pH level is crucial in managing DKA. Serum glucose levels may be high in DKA, but the immediate concern is correcting the acidosis to prevent complications. Serum potassium and bicarbonate levels are also important but not as immediately critical as correcting the acidosis in DKA.

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