HESI RN
HESI Fundamentals Practice Exam
1. The nurse is providing discharge teaching to a client with a new prescription for warfarin (Coumadin). Which dietary instruction should the nurse include?
- A. Avoid foods high in vitamin K
- B. Increase intake of leafy green vegetables
- C. Consume a consistent amount of foods high in potassium
- D. Limit intake of high-protein foods
Correct answer: A
Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.
2. A client is scheduled for a colonoscopy. What instruction should the nurse provide to prepare the client for the procedure?
- A. Drink clear liquids for 24 hours before the procedure
- B. Take a laxative the morning of the procedure
- C. Eat a light meal before the procedure
- D. Avoid drinking fluids for 4 hours before the procedure
Correct answer: A
Rationale: The correct instruction for preparing a client for a colonoscopy is to drink clear liquids for 24 hours before the procedure. This step helps to ensure the bowel is adequately cleared for the colonoscopy, allowing for better visualization and examination of the colon.
3. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which assessment finding should the nurse anticipate?
- A. Oliguria.
- B. Kussmaul respirations.
- C. Fruity odor on the breath.
- D. Blood glucose level of 250 mg/dL.
Correct answer: B
Rationale: Kussmaul respirations (B) are a deep and labored breathing pattern associated with diabetic ketoacidosis (DKA) and are expected in this condition. While oliguria (A), fruity odor on the breath (C), and elevated blood glucose level (D) are also signs of DKA, Kussmaul respirations are more specific and critical to the condition, indicating severe metabolic acidosis.
4. When assessing a male client, the nurse finds that he is fatigued and experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client’s laboratory values to validate the existence of which condition?
- A. Hyperphosphatemia
- B. Hypocalcemia
- C. Hypermagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The symptoms of fatigue, muscle weakness, leg cramps, and cardiac dysrhythmias are classic manifestations of hypokalemia. Potassium plays a vital role in muscle function and cardiac conduction, so a deficiency can lead to these symptoms. Checking the client’s laboratory values for potassium levels will help confirm the presence of hypokalemia.
5. The healthcare professional is obtaining a lie-sit-stand blood pressure reading on a client. Which action is most important for the healthcare professional to implement?
- A. Stay with the client while the client is standing.
- B. Record the findings on the graphic sheet in the chart.
- C. Keep the blood pressure cuff on the same arm.
- D. Record changes in the client's pulse rate.
Correct answer: A
Rationale: In obtaining a lie-sit-stand blood pressure reading, it is crucial for the healthcare professional to stay with the client while the client is standing. This action is the most important as it ensures client safety during the procedure. Recording findings, keeping the blood pressure cuff on the same arm, and monitoring pulse rate are all important tasks, but staying with the client while standing takes priority to prevent any potential falls or adverse events. By staying with the client, the healthcare professional can promptly address any signs of dizziness or instability, ensuring a safe environment for the client throughout the procedure.
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