Nursing Elites

1. How do ACE inhibitors work?

• A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
• B. Block stimulation of beta 1 and beta 2 at the receptor sites
• C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
• D. None of the above

Correct answer: C

Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.

2. A client is taking Amiodarone to treat Atrial Fibrillation. Which of the following findings is a manifestation of Amiodarone toxicity?

• A. Light yellow urine
• B. Report of tinnitus
• C. Productive cough
• D. Blue-gray skin discoloration

Correct answer: D

Rationale: Blue-gray skin discoloration is a common sign of Amiodarone toxicity, known as blue-gray discoloration, which can affect areas like the face, neck, or hands. It is important to monitor for this side effect, as it can be a visible indicator of potential toxicity. Choices A, B, and C are incorrect. Light yellow urine is not typically associated with Amiodarone toxicity. Tinnitus is not a common manifestation of Amiodarone toxicity. A productive cough is not a recognized symptom of Amiodarone toxicity.

3. A client has a new prescription for Warfarin for atrial fibrillation. Which of the following findings should the nurse report to the provider immediately?

• A. INR of 4.0
• B. Potassium level of 4.5 mEq/L
• C. Sodium level of 140 mEq/L
• D. Creatinine level of 1.0 mg/dL

Correct answer: A

Rationale: An INR of 4.0 is above the therapeutic range for a client on Warfarin, indicating an increased risk of bleeding. This finding requires immediate reporting to the provider for appropriate intervention to prevent complications associated with excessive anticoagulation. Potassium, sodium, and creatinine levels are within normal ranges and are not directly related to the risk of bleeding in a client on Warfarin therapy.

4. A client has a new prescription for Nifedipine. Which of the following adverse effects should the nurse monitor?

• A. Hypertension
• B. Edema
• C. Hyperglycemia
• D. Bradycardia

Correct answer: B

Rationale: Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should monitor the client for swelling in the lower extremities, as it indicates the onset of edema. Hypertension is typically treated with Nifedipine and is not an adverse effect of the medication. Hyperglycemia and bradycardia are not commonly associated with Nifedipine use. Therefore, the correct adverse effect to monitor for when a client is prescribed Nifedipine is edema.

5. A client in a coronary care unit is being admitted after CPR post cardiac arrest. The client is receiving IV lidocaine at 2 mg/min. When the client asks the nurse why he is receiving that medication, the nurse should explain that it has which of the following actions?

• A. Prevents dysrhythmias
• B. Slows intestinal motility
• C. Dissolves blood clots
• D. Relieves pain

Correct answer: A

Rationale: Lidocaine is administered to prevent dysrhythmias by delaying conduction in the heart and reducing the automaticity of heart tissue. This action helps stabilize the heart's electrical activity and prevent life-threatening arrhythmias post-cardiac arrest. Choices B, C, and D are incorrect as lidocaine is not used for slowing intestinal motility, dissolving blood clots, or relieving pain in this context.

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