HESI LPN
HESI Fundamental Practice Exam
1. The healthcare provider is preparing to administer a subcutaneous injection of heparin. Which site is most appropriate for the healthcare provider to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Abdomen
- D. Dorsogluteal site
Correct answer: C
Rationale: The abdomen is the most appropriate site for administering subcutaneous heparin injections. The abdomen has a layer of subcutaneous fat and a good blood supply, making it an ideal site for subcutaneous injections. Using the deltoid muscle for heparin injections is not appropriate as it is typically used for intramuscular injections. The ventrogluteal site is more suitable for intramuscular injections rather than subcutaneous injections. The dorsogluteal site is no longer recommended for injections due to the risk of injury to the sciatic nerve.
2. What intervention should be taken to minimize the risk for injury in a client with dementia?
- A. Use a bed exit alarm system.
- B. Place the client in restraints for safety.
- C. Ensure the client has frequent visitors to reduce isolation.
- D. Keep the client's room dark and quiet at night.
Correct answer: A
Rationale: The correct intervention to minimize the risk for injury in a client with dementia is to use a bed exit alarm system. Bed exit alarms are effective tools to alert healthcare providers when a client attempts to get out of bed, helping prevent falls and injuries. Placing the client in restraints (Choice B) is not the preferred method as it can lead to physical and psychological harm, restrict mobility, and increase agitation. While social interaction is important for clients with dementia, ensuring frequent visitors (Choice C) is not directly related to preventing physical injuries. Keeping the client's room dark and quiet at night (Choice D) may be soothing for some clients but does not directly address the risk for injury associated with dementia.
3. A healthcare professional is preparing to administer 0.9% sodium chloride (0.9% NaCl) 250 mL IV to infuse over 30 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 83 gtt/min
- B. 125 gtt/min
- C. 100 gtt/min
- D. 75 gtt/min
Correct answer: C
Rationale: To administer 250 mL over 30 min with a drop factor of 10 gtt/mL, the healthcare professional should adjust the IV infusion to deliver 100 gtt/min. The correct calculation is: (250 mL ÷ 30 min) x 10 gtt/mL = 100 gtt/min. This rate ensures the proper administration of the IV solution within the specified time frame. Choices A, B, and D are incorrect as they do not align with the accurate calculation based on the provided data.
4. A nurse is caring for a client who has a surgical wound. Which of the following laboratory values places the client at risk for poor wound healing?
- A. Serum albumin 3 g/dL
- B. Total lymphocyte count 2400/mm3
- C. HCT 42%
- D. HGB 16 g/dL
Correct answer: A
Rationale: The correct answer is A: Serum albumin 3 g/dL. Low levels of serum albumin indicate poor nutritional status and can impair wound healing. Total lymphocyte count, HCT, and HGB levels are not directly related to wound healing and do not pose a significant risk for poor wound healing in this context. Total lymphocyte count reflects the immune status, HCT measures the percentage of red blood cells in blood, and HGB measures the amount of hemoglobin in blood.
5. When assisting an 82-year-old client to ambulate, it is important for the LPN/LVN to realize that the center of gravity for an elderly person is in the
- A. Arms.
- B. Upper torso.
- C. Head.
- D. Feet.
Correct answer: B
Rationale: The correct answer is 'Upper torso.' In elderly individuals, the center of gravity tends to shift upwards towards the upper torso due to various factors such as changes in posture and muscle strength. Understanding this is crucial for safe ambulation as it helps in maintaining balance and stability. Choices A, 'Arms,' C, 'Head,' and D, 'Feet,' are incorrect. The center of gravity is not typically located in the arms, head, or feet. It is higher up in the body, specifically in the upper torso. Knowing the correct location of the center of gravity is essential for assisting elderly clients in ambulation effectively and preventing falls.
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