Nursing Elites

1. The healthcare provider should observe most closely for drug toxicity when a client receives a medication that has which characteristic?

• A. Low bioavailability
• B. Rapid onset of action
• C. Short half-life
• D. Narrow therapeutic index

Correct answer: D

Rationale: The correct answer is D, narrow therapeutic index. Narrow therapeutic index (NTI) drugs are defined as those drugs where small differences in dose or blood concentration may lead to serious therapeutic failures or adverse drug reactions. Choices A, B, and C are not directly related to the risk of drug toxicity. Low bioavailability (Choice A) refers to the amount of drug that enters the bloodstream unchanged after administration. Rapid onset of action (Choice B) and short half-life (Choice C) are characteristics related to drug effectiveness and metabolism but do not necessarily indicate a higher risk of drug toxicity.

2. A client with chronic kidney disease (CKD) is scheduled for hemodialysis. Which laboratory value should the nurse report to the healthcare provider before the procedure?

• A. Serum potassium of 5.5 mEq/L
• B. Hemoglobin of 10 g/dl
• C. Potassium of 6.0 mEq/L
• D. Blood glucose of 200 mg/dl

Correct answer: C

Rationale: The correct answer is C: Potassium of 6.0 mEq/L. A potassium level of 6.0 mEq/L is dangerously high in a client with CKD, and it should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Choices A, B, and D are not the most critical values to report before hemodialysis. While a serum potassium level of 5.5 mEq/L is slightly elevated, it is not as urgent as a level of 6.0 mEq/L in this context. Hemoglobin of 10 g/dl and blood glucose of 200 mg/dl are important parameters to monitor but are not as immediately concerning before hemodialysis compared to a high potassium level.

3. A client with hypertension is prescribed a calcium channel blocker. Which client statement indicates that further teaching is needed?

• A. ‘I will take my medication at the same time every day.’
• B. ‘I should avoid drinking grapefruit juice while on this medication.’
• C. ‘I should increase my intake of calcium-rich foods.’
• D. ‘I should reduce my fluid intake to control my blood pressure.’

Correct answer: D

Rationale: The correct answer is D. The statement ‘I should reduce my fluid intake to control my blood pressure’ indicates a misunderstanding. It is important to note that fluid restriction is not typically necessary when taking calcium channel blockers. Choices A, B, and C demonstrate good understanding of medication adherence, dietary precautions, and nutrition recommendations when taking a calcium channel blocker, making them incorrect choices for further teaching.

4. The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which clinical finding requires immediate intervention?

• A. Increased fatigue
• B. Elevated blood pressure
• C. Headache
• D. Elevated hemoglobin

Correct answer: A

Rationale: The correct answer is A, 'Increased fatigue.' In a client with CKD receiving erythropoietin therapy, increased fatigue can be a sign of polycythemia, a condition characterized by an elevated red blood cell count. This can lead to increased blood viscosity and raise the risk of thromboembolic events, necessitating immediate intervention. Elevated blood pressure (choice B) is a common concern in CKD but does not require immediate intervention in this context. Headache (choice C) may be related to elevated blood pressure but is not the most critical finding requiring immediate attention. Elevated hemoglobin (choice D) is an expected outcome of erythropoietin therapy and does not require immediate intervention unless excessively high.

5. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which intervention should the nurse implement first?

• A. Administer intravenous fluids.
• B. Monitor the client's urine output.
• C. Obtain a blood glucose level.
• D. Administer 50% dextrose IV push.

Correct answer: D

Rationale: The correct answer is to administer 50% dextrose IV push first. In hyperglycemic hyperosmolar syndrome, the main goal is to rapidly reduce blood glucose levels to prevent further complications. Administering dextrose intravenously can help reverse the effects of high blood glucose levels quickly. Administering intravenous fluids, monitoring urine output, and obtaining a blood glucose level are important interventions but are not the first priority in treating HHS. Administering 50% dextrose IV push takes precedence as it directly addresses the elevated blood glucose levels.

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