HESI RN
HESI Fundamentals Practice Test
1. The healthcare professional observes a UAP taking a client's blood pressure in the lower extremity. Which observation of this procedure requires the healthcare professional's intervention?
- A. The cuff wraps around the girth of the leg.
- B. The UAP auscultates the popliteal pulse with the cuff on the lower leg.
- C. The client is placed in a prone position.
- D. The systolic reading is 20 mm Hg higher than the blood pressure in the client's arm.
Correct answer: B
Rationale: When obtaining blood pressure in the lower extremities, the popliteal pulse is the site for auscultation when the blood pressure cuff is applied around the thigh. Auscultating the popliteal pulse with the cuff on the lower leg is incorrect as it may lead to an inaccurate reading. Placing the client in a prone position and wrapping the cuff around the girth of the leg are acceptable practices. A systolic reading that is 20 mm Hg higher in the lower extremity compared to the arm is expected due to the difference in blood pressure between the upper and lower parts of the body.
2. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the nurse set the client's intravenous infusion pump?
- A. 13 ml/hour.
- B. 63 ml/hour.
- C. 80 ml/hour.
- D. 125 ml/hour.
Correct answer: B
Rationale: The correct calculation involves dividing the total volume by the total time. In this case, 250 ml/4 hours = 63 ml/hour. The dose of KCl is not used in the calculation as the focus is on the rate of infusion over the specified time period. Choice A (13 ml/hour) is incorrect as it does not result from the correct calculation. Choice C (80 ml/hour) and Choice D (125 ml/hour) are also incorrect calculations and do not match the correct rate of infusion required.
3. The healthcare provider is teaching a client with hypertension about lifestyle modifications. Which instruction should the healthcare provider include?
- A. Limit sodium intake to 2,300 mg per day
- B. Engage in moderate exercise for 30 minutes daily
- C. Consume a diet high in saturated fats
- D. Avoid alcohol consumption completely
Correct answer: B
Rationale: Engaging in moderate exercise for 30 minutes daily is a crucial lifestyle modification for managing hypertension. Regular physical activity helps lower blood pressure, improve cardiovascular health, and overall well-being. It is recommended to engage in activities like brisk walking, cycling, or swimming to achieve these benefits. Choices A, C, and D are incorrect. Limiting sodium intake, avoiding a diet high in saturated fats, and reducing alcohol consumption are also important lifestyle modifications for hypertension management, but engaging in moderate exercise is the most appropriate initial instruction for this client.
4. A client is admitted with a diagnosis of heart failure. Which dietary instruction should the nurse provide?
- A. Increase fluid intake to 3 liters per day.
- B. Limit sodium intake to 2 grams per day.
- C. Avoid foods high in potassium.
- D. Increase protein intake to promote healing.
Correct answer: B
Rationale: Limiting sodium intake to 2 grams per day (B) is a crucial dietary instruction for clients with heart failure. It helps manage fluid retention and reduces the workload on the heart. Excessive sodium can lead to fluid retention, worsening heart failure symptoms. Increasing fluid intake (A) can further exacerbate fluid overload in heart failure patients. Avoiding foods high in potassium (C) is not necessary unless the client has hyperkalemia; in heart failure, potassium restriction is not a primary dietary concern. Increasing protein intake (D) is not the priority for heart failure management; focusing on sodium restriction is more beneficial.
5. The healthcare provider plans to administer diazepam, 4 mg IV push, to a client with severe anxiety. How many milliliters should the healthcare provider administer? (Round to the nearest tenth.)
- A. 0.2 mL
- B. 0.8 mL
- C. 1.25 mL
- D. 2.0 mL
Correct answer: B
Rationale: To calculate the volume to administer, use the formula (1 mL × 4 mg) / 5 mg = 0.8 mL. The healthcare provider should administer 0.8 mL of diazepam for a dosage of 4 mg IV push. Choice A is incorrect because it results from an incorrect calculation. Choices C and D are incorrect as they do not align with the correct calculation based on the provided dosage.
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