HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hours. The healthcare professional should set the pump to deliver how many mL/hr?
- A. 107 mL/hr
- B. 75 mL/hr
- C. 90 mL/hr
- D. 60 mL/hr
Correct answer: A
Rationale: To calculate the mL/hr rate for the infusion, divide the total volume (750 mL) by the total time (7 hours). 750 mL รท 7 hours = 107 mL/hr. This means that the pump should be set to deliver approximately 107 mL/hr. Choice B (75 mL/hr) is incorrect because it does not reflect the correct calculation. Choice C (90 mL/hr) is incorrect as it does not align with the accurate calculation. Choice D (60 mL/hr) is incorrect as it does not match the correct mL/hr rate obtained through the calculation.
2. A client who requires maximal support is being taught how to use a two-wheeled walker by a nurse. Which of the following actions by the client indicates an understanding of the teaching?
- A. The client moves the walker ahead 25.4 cm with each step
- B. The client picks up the walker with each step
- C. The client stands with elbows slightly bent while holding the walker
- D. The client stoops slightly forward when moving the walker
Correct answer: C
Rationale: The correct answer is C. When using a two-wheeled walker, the client should stand with elbows slightly bent to maintain balance and stability. This position helps distribute weight effectively and promotes proper use of the walker. Choices A, B, and D are incorrect. Choice A does not demonstrate proper posture while using the walker. Choice B of picking up the walker with each step is not the correct technique and can lead to instability. Choice D of stooping slightly forward is also incorrect as it can affect balance and posture negatively.
3. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing techniques?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses a brush to scrub under her nails.
- C. The nurse washes for at least 30 seconds.
- D. The nurse uses alcohol-based hand rub only.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves keeping the hands higher than the elbows to prevent contamination. Washing with hands held lower than the elbows can lead to potential contamination. Using a brush to scrub under the nails is not recommended as it can cause microabrasions, increasing infection risk. While washing for at least 30 seconds is a good practice for thorough hand hygiene, hand positioning is critical during surgical hand-washing. Using alcohol-based hand rub alone is insufficient for surgical hand-washing as it may not effectively remove dirt, debris, and transient microorganisms.
4. The client is receiving total parenteral nutrition (TPN). Which laboratory value should the LPN/LVN monitor closely to assess for complications?
- A. Serum potassium
- B. Blood glucose
- C. Serum sodium
- D. Serum calcium
Correct answer: B
Rationale: The correct answer is B: Blood glucose. When caring for a client receiving total parenteral nutrition (TPN), monitoring blood glucose levels is essential due to the risk of hyperglycemia. TPN solutions are high in glucose, and clients may be at risk of developing hyperglycemia if the infusion rate is too high or if there are underlying issues such as insulin resistance. Monitoring serum potassium (choice A) is important but not the most crucial value to monitor in clients receiving TPN. Serum sodium (choice C) and serum calcium (choice D) are not directly impacted by TPN administration and are less likely to be affected compared to blood glucose levels.
5. A client has a fecal impaction. Before digital removal of the mass, which of the following types of enemas should be administered to soften the feces?
- A. Oil retention
- B. Soapsuds
- C. Saline
- D. Hypertonic
Correct answer: A
Rationale: An oil retention enema is the most appropriate choice to soften and lubricate the feces before digital removal. Oil retention enemas help in making the stool easier to remove digitally due to their lubricating properties. Soapsuds, saline, and hypertonic enemas are not specifically designed to soften feces and are used for different purposes. Soapsuds enemas are used for cleansing, saline enemas for bowel evacuation, and hypertonic enemas for bowel distension in preparation for diagnostic procedures.
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