HESI LPN
HESI Fundamentals Study Guide
1. A client is admitted for evaluation and control of HTN. Several hours after the client's admission, the nurse discovers the client supine on the floor, unresponsive to verbal or painful stimuli. The nurse's first reaction at this time is to:
- A. Establish an airway
- B. Call for assistance
- C. Check the client's pulse and blood pressure
- D. Perform CPR
Correct answer: A
Rationale: In a situation where a client is found unresponsive on the floor, the nurse's first priority is to establish an airway. This is crucial to ensure that the client can breathe adequately and receive oxygen. Without a patent airway, the client's oxygenation and ventilation may be compromised, leading to serious consequences. Calling for assistance is important, but establishing an airway takes precedence as it directly impacts the client's ability to breathe. Checking the client's pulse and blood pressure can be done after ensuring a clear airway. Performing CPR is not the immediate action needed unless the client's breathing and pulse are absent after the airway has been secured.
2. A client in a provider’s office tells the nurse that, 'I fast for several days each week to help control my weight.' The client takes several medications for various chronic issues. The nurse should explain to the client that which of the following mechanisms that result from fasting puts her at risk for medication toxicity?
- A. Increasing the metabolism of the medications over time
- B. Increasing the protein-binding response
- C. Increasing medications’ transit time through the intestines
- D. Decreasing the excretion of medications
Correct answer: B
Rationale: Fasting can lead to an increased protein-binding response of medications. This can result in a higher concentration of bound medications in the bloodstream, potentially causing toxicity as the medications may not be readily available for metabolism or excretion. Choice A is incorrect because fasting typically doesn't increase medication metabolism. Choice C is incorrect as fasting usually decreases transit time through the intestines. Choice D is incorrect since fasting generally does not decrease medication excretion.
3. While caring for a client who, while sitting in a chair, starts to experience a seizure, what action should the nurse take?
- A. Lower the client to the floor and place a pad under the client's head.
- B. Hold the client's head still to prevent injury.
- C. Restrain the client to prevent movement.
- D. Place the client in a supine position.
Correct answer: A
Rationale: During a seizure, the priority is to lower the client to the floor to prevent injury and ensure their safety. Placing a pad under the client's head helps protect the head from injury. Choice B, holding the client's head still, is incorrect as it can lead to harm; it's essential to allow movement during a seizure to prevent neck injury. Choice C, restraining the client, is dangerous and can cause harm by restricting movement. Choice D, placing the client in a supine position, is also not recommended during a seizure as it does not provide adequate protection for the client.
4. The healthcare provider prescribes morphine sulfate 4mg IM STAT. Morphine comes in 8 mg per ml. How many ml should the LPN/LVN administer?
- A. 0.5 ml
- B. 1 ml
- C. 1.5 ml
- D. 2 ml
Correct answer: A
Rationale: To administer 4 mg of morphine, as prescribed, the LPN/LVN needs to calculate the correct volume based on the concentration provided (8 mg per ml). Since the desired dose is 4 mg, half of 8 mg (0.5 ml) is required to administer the correct amount. Therefore, the correct answer is 0.5 ml. Choices B, C, and D are incorrect as they would either underdose or overdose the patient.
5. When reviewing car seat use with the parents of a 1-month-old infant, which of the following instructions should the nurse include?
- A. Use a car seat that has a three-point harness system.
- B. Position the car seat so that the infant is rear-facing.
- C. Secure the car seat in the front passenger seat of the vehicle.
- D. Convert to a booster seat after 12 months.
Correct answer: B
Rationale: The correct instruction for car seat use with a 1-month-old infant is to position the car seat so that the infant is rear-facing. This orientation provides the safest option for infants as it supports their head, neck, and spine. While using a car seat with a three-point harness system is appropriate for infants, placing the car seat in the front passenger seat is not recommended due to the presence of airbags, which can pose a risk to the infant in the event of deployment. Additionally, transitioning to a booster seat is not suitable at 12 months; infants should remain in rear-facing car seats until they outgrow the seat's height or weight limits, typically around 2 years of age.
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