HESI LPN
HESI Fundamentals Exam
1. The healthcare professional prepares a 1,000 ml IV of 5% dextrose and water to be infused over 8 hours. The infusion set delivers 10 drops per milliliter. The healthcare professional should regulate the IV to administer approximately how many drops per minute?
- A. 80
- B. 8
- C. 21
- D. 25
Correct answer: C
Rationale: To calculate the drops per minute for the IV infusion, first determine the total drops to be infused over 8 hours. 1,000 ml to be infused over 8 hours means 125 ml per hour (1000 ml / 8 hours = 125 ml/hr). Since the infusion set delivers 10 drops per ml, 125 ml/hr x 10 drops/ml = 1250 drops/hr. To find drops per minute, divide the drops per hour by 60 (minutes in an hour): 1250 drops/hr / 60 minutes = 20.83 drops/minute, which rounds up to 21 drops per minute (Option C). This rate ensures the correct infusion rate over 8 hours. Choices A, B, and D are incorrect calculations and do not provide the appropriate infusion rate needed to administer the IV over the specified time period.
2. The UAPs working on a chronic neuro unit ask the LPN/LVN to help them determine the safest way to transfer an elderly client with left-sided weakness from the bed to the chair. What method describes the correct transfer procedure for this client?
- A. Place the chair at a right angle to the bed on the client's left side before moving.
- B. Assist the client to a standing position, then place the right hand on the armrest.
- C. Have the client place the left foot next to the chair and pivot to the left before sitting.
- D. Move the chair parallel to the right side of the bed, and stand the client on the right foot.
Correct answer: D
Rationale: The correct method for transferring an elderly client with left-sided weakness from the bed to the chair involves moving the chair parallel to the right side of the bed and standing the client on the right foot. This technique provides a stable and safe transfer by utilizing the stronger side of the client to support the transfer. Choices A, B, and C are incorrect because placing the chair at a right angle to the bed on the client's left side, assisting the client to a standing position and placing the right hand on the armrest, and having the client pivot to the left before sitting do not address the client's left-sided weakness and may increase the risk of falls or injuries.
3. The nurse plans to assist a male client out of bed for the first time since his surgery yesterday. His wife objects and tells the nurse to get out of the room because her husband is too ill to get out of bed.
- A. Administer nasal oxygen at a rate of 5 L/min
- B. Help the client to lie back down in the bed
- C. Quickly pivot the client to the chair and elevate the legs
- D. Check the client’s blood pressure and pulse deficit
Correct answer: D
Rationale: Checking the client’s blood pressure and pulse deficit is essential before mobilizing a client out of bed, especially after surgery. This assessment helps ensure the client's stability and readiness for mobilization. Administering oxygen or pivoting the client without prior assessment could pose risks if the client is not medically stable. Helping the client lie back down without proper evaluation may delay necessary interventions if the client is indeed ready for mobilization.
4. An 18-year-old client is admitted to the intensive care unit from the emergency room following a diving accident. The injury is suspected to be at the level of the 2nd cervical vertebra. The nurse's priority assessment should be
- A. Response to stimuli
- B. Bladder control
- C. Respiratory function
- D. Muscle strength
Correct answer: C
Rationale: Injuries at the level of the 2nd cervical vertebra can affect the phrenic nerve, leading to potential impairment of respiratory function. Assessing respiratory function is crucial as compromised breathing can quickly escalate to life-threatening situations. While response to stimuli is important, ensuring adequate oxygenation takes precedence due to the immediate threat to life. Bladder control may be affected by spinal cord injuries at higher levels, but it is not the priority in this scenario. Muscle strength is a potential consequence of cervical spinal cord injury, but assessing respiratory function is more critical in the acute phase.
5. A nurse is caring for a client who has tuberculosis. Which of the following precautions should the nurse plan to implement when working with the client?
- A. Airborne
- B. Droplet
- C. Protective
- D. Contact
Correct answer: A
Rationale: Tuberculosis is an infectious disease that requires airborne precautions to prevent the transmission of infectious droplets. Airborne precautions involve wearing a mask, such as an N95 respirator, to protect against inhaling infectious particles. Droplet precautions are for diseases spread through respiratory droplets larger than those in airborne transmission, such as influenza. Protective precautions are not specific to respiratory infections and are more general measures to protect patients from harm. Contact precautions are used for diseases spread by direct or indirect contact, such as MRSA or C. diff infections, not for tuberculosis.
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