Nursing Elites

1. A nurse is reviewing the laboratory results of a client who has hypokalemia. Which of the following findings should the nurse expect?

• A. Serum potassium 5.4 mEq/L
• B. Flat T waves
• C. Elevated ST segments
• D. Bradycardia

Correct answer: B

Rationale: Flat T waves are a characteristic ECG finding in hypokalemia. Hypokalemia causes a decrease in serum potassium levels, leading to altered cardiac conduction. Flat T waves are associated with hypokalemia-induced cardiac dysrhythmias. Elevated ST segments are typically seen in conditions like myocardial infarction, not in hypokalemia. Bradycardia is not a typical manifestation of hypokalemia; instead, tachycardia may occur due to potassium imbalances affecting the heart's electrical activity.

2. A nurse is caring for a client who has an indwelling urinary catheter. Which of the following interventions should the nurse implement to prevent catheter-associated infections?

• A. Change the catheter every 24 hours
• B. Ensure the drainage bag is positioned above the bladder
• C. Perform routine irrigation of the catheter
• D. Empty the drainage bag every 4 hours

Correct answer: B

Rationale: The correct answer is to ensure the drainage bag is positioned above the bladder. This positioning prevents urine reflux into the bladder, reducing the risk of catheter-associated infections. Changing the catheter too frequently (Choice A) can actually increase the risk of infection by introducing pathogens. Performing routine catheter irrigation (Choice C) is no longer recommended as it can increase the risk of infection by introducing bacteria. Emptying the drainage bag every 4 hours (Choice D) is a standard practice to prevent urinary stasis but is not directly related to preventing catheter-associated infections.

3. A nurse is assessing a client who is receiving a blood transfusion. Which of the following findings should the nurse identify as an indication of a hemolytic transfusion reaction?

• A. Low back pain.
• B. Bradycardia.
• C. Chills.
• D. Distended neck veins.

Correct answer: A

Rationale: The correct answer is A: Low back pain. Low back pain is a common sign of a hemolytic transfusion reaction, indicating the destruction of red blood cells. This finding requires immediate intervention as it can lead to serious complications such as renal failure. Bradycardia (choice B) is not typically associated with a hemolytic transfusion reaction. Chills (choice C) can be seen in febrile non-hemolytic transfusion reactions. Distended neck veins (choice D) are more indicative of fluid overload rather than a hemolytic reaction.

4. A healthcare professional is reviewing the laboratory results of a client who has chronic kidney disease. Which of the following findings should the healthcare professional report to the provider?

• A. Serum potassium 4.5 mEq/L
• B. Serum calcium 9.2 mg/dL
• C. Serum creatinine 2.5 mg/dL
• D. Serum albumin 3.5 g/dL

Correct answer: C

Rationale: Elevated serum creatinine levels indicate impaired kidney function. As kidney disease progresses, the kidneys are less able to filter waste products, leading to an increase in creatinine levels. Therefore, a high serum creatinine level of 2.5 mg/dL should be reported to the provider for further evaluation and management. Choices A, B, and D are within normal ranges and do not directly signify worsening kidney function in this context.

5. How should a healthcare professional administer a subcutaneous injection?

• A. Insert the needle at a 45-degree angle
• B. Insert the needle at a 90-degree angle
• C. Use a Z-track method
• D. Insert the needle at a 15-degree angle

Correct answer: A

Rationale: The correct technique for administering subcutaneous injections is to insert the needle at a 45-degree angle. This angle ensures that the medication is delivered into the subcutaneous tissue, which is located just below the skin. Inserting the needle at a 90-degree angle is more appropriate for intramuscular injections, while using a Z-track method is specific to intramuscular injections to prevent leakage of medication into the subcutaneous tissue. Inserting the needle at a 15-degree angle would not reach the subcutaneous tissue effectively.

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