HESI LPN
HESI Fundamentals Study Guide
1. 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.
2. When interviewing the parents of a child with asthma, what information about the child's environment should be gathered most importantly?
- A. Household pets
- B. New furniture
- C. Lead-based paint
- D. Plants such as cactus
Correct answer: A
Rationale: When assessing a child with asthma, it is crucial to gather information about potential triggers in their environment. Household pets, such as cats or dogs, are common triggers for asthma attacks due to pet dander and saliva. This information is essential to identify if exposure to pets at home could be exacerbating the child's asthma symptoms. Choices B, C, and D are less relevant in the context of asthma triggers. New furniture, lead-based paint, and plants like cactus are not typically primary triggers for asthma attacks compared to common allergens like pet dander.
3. What intervention should be implemented by the LPN to reduce the risk of aspiration in a client with a nasogastric tube receiving continuous enteral feedings?
- A. Elevate the head of the bed to 30-45 degrees.
- B. Check residual volumes every 4 hours.
- C. Verify tube placement every shift.
- D. Flush the tube with water every 4 hours.
Correct answer: A
Rationale: Elevating the head of the bed to 30-45 degrees is crucial in reducing the risk of aspiration because it helps keep the gastric contents lower than the esophagus, thereby promoting proper digestion and preventing reflux. This position also aids in reducing the likelihood of regurgitation and aspiration of gastric contents. Checking residual volumes every 4 hours is important for monitoring feeding tolerance but does not directly address the risk of aspiration. Verifying tube placement every shift is essential for ensuring the tube is correctly positioned within the gastrointestinal tract but does not directly reduce the risk of aspiration. Flushing the tube with water every 4 hours may help maintain tube patency and prevent clogging, but it does not specifically address the risk of aspiration associated with nasogastric tube feedings.
4. A client admitted with sudden onset of severe back pain of unknown origin. Which statement would be most effective for the nurse to use to elicit further information from this client about his pain?
- A. Tell me how you are feeling right now.
- B. Describe the pain you are experiencing.
- C. Can you tell me more about your back pain?
- D. When did the pain start and how severe is it?
Correct answer: B
Rationale: The correct answer is B: 'Describe the pain you are experiencing.' This question is the most effective as it prompts the client to provide detailed information about the nature of the pain, including its characteristics, intensity, and location. This detailed description can help the nurse in assessing the possible cause and severity of the pain. Choices A, C, and D are not as effective as they are either too general ('Tell me how you are feeling right now'), redundant ('Can you tell me more about your back pain?'), or focused only on timing and severity ('When did the pain start and how severe is it?').
5. A nurse is in a public building when someone cries out, 'Help! I think he is having a heart attack!' The nurse responds to the scene and finds the unconscious adult lying on the floor. Another bystander has obtained an AED. The nurse's first action, after ensuring someone has called for EMS, should be to:
- A. Administer cardiac compressions
- B. Attach the AED pads to the client
- C. Check for a pulse
- D. Perform rescue breaths
Correct answer: A
Rationale: In a scenario where a person is unconscious and there is an indication of a possible heart attack, the immediate priority for the nurse should be to administer cardiac compressions. This action helps maintain circulation and ensures oxygenated blood reaches vital organs until the AED is available. Checking for a pulse or performing rescue breaths may delay essential circulation support, and attaching AED pads should follow the initial step of administering compressions to maximize the chances of a successful resuscitation.
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