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. The client has a chest tube. What is the most important action for the nurse to take?
- A. Ensure the chest tube remains unclamped at all times.
- B. Empty the chest tube every 2 hours.
- C. Keep the drainage system below the level of the chest.
- D. Assess for subcutaneous emphysema.
Correct answer: C
Rationale: Keeping the drainage system below the level of the chest (C) is crucial to ensure proper drainage and prevent backflow of air or fluid into the chest cavity. This position helps maintain the integrity of the closed drainage system. Ensuring the chest tube remains unclamped at all times (A) allows for continuous drainage. Emptying the chest tube (B) should be done as needed, not routinely every 2 hours. Assessing for subcutaneous emphysema (D) is important but not the most critical action in this scenario.
3. The healthcare professional counts an adult's apical heartbeat at 110 beats per minute. The healthcare professional describes this as:
- A. Asystole
- B. Bigeminy
- C. Tachycardia
- D. Bradycardia
Correct answer: C
Rationale: Tachycardia is a heart rate greater than 100 beats per minute. In this case, an adult's heart rate of 110 beats per minute falls within the range of tachycardia. Tachycardia can be a common physiological response to various stresses on the body, leading to an increased heart rate. Asystole refers to the absence of cardiac activity, bigeminy is a specific heart rhythm pattern, and bradycardia is a heart rate below 60 beats per minute in adults.
4. What is the most important instruction for the nurse to provide a client with a new colostomy regarding stoma care?
- A. Cleanse the stoma with hydrogen peroxide and water.
- B. Apply a moisture barrier cream to the peristomal skin.
- C. Measure the stoma using a stoma guide.
- D. Use a dry gauze pad to clean the stoma.
Correct answer: C
Rationale: Measuring the stoma using a stoma guide (C) is crucial as it ensures that the appliance fits properly, which is essential for preventing skin irritation and leakage. Proper measurement helps in selecting the right size of the appliance, promoting comfort and optimal stoma care. In contrast, cleansing with hydrogen peroxide (A), applying a moisture barrier cream (B), and using a dry gauze pad (D) are important but not as critical as ensuring the correct fit of the stoma appliance.
5. The healthcare provider is caring for a client diagnosed with type 2 diabetes mellitus. Which intervention should the healthcare provider implement to assess the client’s glycemic control?
- A. Monitor fasting blood glucose levels
- B. Check urine for ketones
- C. Evaluate hemoglobin A1c levels
- D. Assess the client’s dietary intake
Correct answer: C
Rationale: Evaluating hemoglobin A1c levels is the most appropriate intervention to assess glycemic control in a client with type 2 diabetes mellitus. Hemoglobin A1c levels reflect the average blood glucose control over the past 2-3 months, providing valuable information for monitoring and managing diabetes. Monitoring fasting blood glucose levels (Choice A) is important for daily management but does not provide a long-term view like hemoglobin A1c. Checking urine for ketones (Choice B) is more relevant for assessing diabetic ketoacidosis. Assessing dietary intake (Choice D) is crucial for overall diabetes management but does not directly assess glycemic control.
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