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. A client with pneumonia has a decrease in oxygen saturation from 94% to 88% while ambulating. Based on these findings, which intervention should the LPN/LVN implement first?
- A. Assist the ambulating client back to the bed.
- B. Encourage the client to ambulate to resolve pneumonia.
- C. Obtain a prescription for portable oxygen while ambulating.
- D. Move the oximetry probe from the finger to the earlobe.
Correct answer: A
Rationale: The correct intervention is to assist the client back to bed. A decrease in oxygen saturation while ambulating indicates hypoxemia, and the immediate priority is to stabilize oxygen levels. Returning the client to bed allows for rest and decreased oxygen demand, potentially preventing further desaturation. Encouraging continued ambulation (Choice B) may worsen the hypoxemia by increasing oxygen demand. Obtaining portable oxygen (Choice C) is essential but should not delay addressing the low oxygen saturation. Moving the oximetry probe (Choice D) may not address the underlying cause of decreased oxygen saturation and should not be the first intervention.
3. While caring for a client who begins to experience a generalized seizure while standing in her room, which of the following actions should the nurse take?
- A. Place a pad under the client’s head
- B. Hold the client’s limbs tightly to prevent injury
- C. Lift the client into bed with the help of other staff members
- D. Insert a bite block into the client’s mouth
Correct answer: A
Rationale: During a seizure, the priority is to protect the client's head and ensure their safety. The nurse should guide the client to the ground if possible and place a soft pad or a folded cloth under the head to prevent injury. Restraining the client's limbs can result in injury and should be avoided. Lifting the client can also lead to injuries during a seizure. Inserting a bite block is contraindicated as it can cause damage to the teeth, oral tissues, and obstruct the airway. Therefore, the correct action is to place a pad under the client's head to protect them during the seizure.
4. A client with a history of heart failure is admitted with weight gain and peripheral edema. Which medication should the LPN/LVN anticipate being prescribed?
- A. Lisinopril (Zestril)
- B. Furosemide (Lasix)
- C. Metoprolol (Lopressor)
- D. Simvastatin (Zocor)
Correct answer: B
Rationale: Furosemide (Lasix) is the correct answer. In a client with heart failure experiencing weight gain and peripheral edema, the priority is to manage fluid overload. Furosemide is a loop diuretic commonly prescribed to reduce excess fluid in heart failure patients. Lisinopril (Zestril) is an ACE inhibitor used to treat hypertension and heart failure but does not directly address fluid overload. Metoprolol (Lopressor) is a beta-blocker that helps manage heart failure symptoms but does not primarily target fluid retention. Simvastatin (Zocor) is a statin used to lower cholesterol levels and is not indicated for managing fluid overload in heart failure.
5. A nurse is preparing to provide tracheostomy care for a client. Which of the following actions should the nurse take first?
- A. Perform hand hygiene
- B. Identify the client using two identifiers
- C. Prepare the sterile field
- D. Don sterile gloves
Correct answer: A
Rationale: Performing hand hygiene is essential before any direct patient care procedure to prevent the spread of infection. Proper hand hygiene helps reduce the risk of introducing harmful microorganisms to the client, especially when dealing with a procedure like tracheostomy care. Identifying the client, preparing the sterile field, and donning sterile gloves are all important steps in tracheostomy care, but hand hygiene precedes them to maintain asepsis and ensure patient safety.
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