Nursing Elites

1. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?

• A. Initiation of the impulses from a location outside the SA node
• B. Inability of the SA node to initiate an impulse at the normal rate
• C. Increased conduction time from the SA node to the AV junction
• D. Interference with the conduction through one or both ventricles

Correct answer: C

Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.

2. A client with hypertension receives a prescription for enalapril, an angiotensin-converting enzyme inhibitor. What instruction should the nurse include in the medication teaching plan?

• A. Increase intake of potassium-rich foods
• B. Report increased bruising or bleeding
• C. Stop medication if a cough develops
• D. Limit intake of leafy green vegetables

Correct answer: B

Rationale: The correct answer is B: 'Report increased bruising or bleeding.' Enalapril, an ACE inhibitor, can lead to thrombocytopenia, a condition characterized by a low platelet count, which increases the risk of bruising and bleeding. Instructing the client to report any signs of increased bruising or bleeding is crucial for monitoring and managing this potential side effect. Choices A, C, and D are incorrect: A - Increasing potassium-rich foods is not directly related to the side effects of enalapril. C - Developing a cough is a common side effect of ACE inhibitors, but it does not warrant stopping the medication unless advised by a healthcare provider. D - Limiting intake of leafy green vegetables is not necessary with enalapril unless specifically instructed by a healthcare provider for individual reasons.

3. The nurse is assessing a client with left-sided heart failure. Which laboratory value is most concerning?

• A. Serum creatinine of 1.5 mg/dL
• B. Serum sodium of 136 mEq/L
• C. Serum potassium of 5.5 mEq/L
• D. Hemoglobin of 12 g/dL

Correct answer: C

Rationale: A serum potassium level of 5.5 mEq/L is most concerning in a client with left-sided heart failure as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias, which can exacerbate heart failure. Serum creatinine of 1.5 mg/dL is slightly elevated but not as immediately concerning as hyperkalemia. Serum sodium of 136 mEq/L is within the normal range. Hemoglobin of 12 g/dL is also within the normal range and not directly related to the client's left-sided heart failure.

4. A client with a history of severe rheumatoid arthritis is receiving a corticosteroid. Which assessment finding should the nurse report to the healthcare provider immediately?

• A. Blood glucose level of 180 mg/dL
• B. Weight gain of 2 pounds in 24 hours
• C. Blood pressure of 140/90 mmHg
• D. Increased joint pain

Correct answer: C

Rationale: Elevated blood pressure (140/90 mmHg) is a significant finding that the nurse should report immediately. Hypertension can be a severe side effect of corticosteroid therapy, especially in clients with preexisting conditions like rheumatoid arthritis. It requires prompt intervention to prevent complications such as cardiovascular events. The other options, while important to monitor, are not as critical as elevated blood pressure in this context. A blood glucose level of 180 mg/dL may indicate hyperglycemia, weight gain could be due to fluid retention, and increased joint pain is expected in a client with severe rheumatoid arthritis.

5. The nurse is preparing a 50 ml dose of 50% dextrose IV for a client with insulin shock. What is the most immediate intervention by the nurse?

• A. Dilute the dextrose in one liter of 0.9% Normal Saline solution.
• B. Mix the dextrose in a 50 ml piggyback for a total volume of 100 ml.
• C. Push the undiluted dextrose slowly through the current IV infusion.
• D. Ask the pharmacist to add the dextrose to a TPN solution.

Correct answer: C

Rationale: The correct immediate intervention by the nurse in this situation is to push the undiluted 50% dextrose slowly through the current IV infusion. This is because in cases of insulin shock, where the client has dangerously low blood sugar levels, administering 50% dextrose directly into the bloodstream helps rapidly increase blood glucose levels. Choice A is incorrect because diluting the dextrose in one liter of normal saline would delay the administration of glucose, which is needed urgently. Choice B is incorrect as mixing the dextrose in a piggyback solution would also delay the administration of the concentrated dextrose. Choice D is incorrect because adding dextrose to a TPN solution is not the immediate intervention needed to address the low blood sugar levels in a client experiencing insulin shock.

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