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. A client is experiencing a severe sore throat, pain when swallowing, and swollen lymph nodes. Which of the following stages of infection is the client likely in?
- A. Prodromal
- B. Incubation
- C. Convalescence
- D. Illness
Correct answer: D
Rationale: The client in this scenario is in the illness stage of infection. During this stage, the individual exhibits specific symptoms such as a severe sore throat, pain when swallowing, and swollen lymph nodes. The prodromal stage precedes the appearance of specific symptoms and is characterized by nonspecific signs. The incubation period occurs between exposure to the pathogen and the onset of symptoms. Convalescence is the recovery period following the resolution of the infection. Therefore, the correct answer is 'D: Illness' as it aligns with the symptoms presented by the client.
3. A nurse is collecting a blood pressure reading from a client who is sitting in a chair. The nurse determines that the client's BP is 158/96 mmHg. Which of the following actions should the nurse take?
- A. Ensure that the width of the BP cuff is appropriate for the client's arm circumference.
- B. Reposition the client supine and recheck their BP.
- C. Recheck the client's BP and measure their other arm for comparison.
- D. Request that another nurse check the client's BP in 30 minutes.
Correct answer: C
Rationale: When a nurse obtains a blood pressure reading that is elevated, the appropriate action is to recheck the client's BP and measure the other arm for comparison. This step helps ensure accuracy by ruling out errors like improper cuff size, positioning, or equipment malfunction. Repositioning the client supine is not necessary unless the client shows signs of distress or symptoms. Ensuring the appropriate cuff width is important for accurate readings but does not address the immediate need to confirm the current BP. Requesting another nurse to check the BP in 30 minutes delays immediate action and does not address the need for verification and comparison of the current reading.
4. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
5. The nurse is preparing to administer insulin to a client with type 1 diabetes. Which assessment finding would require the nurse to hold the insulin and contact the healthcare provider?
- A. Blood glucose of 100 mg/dL
- B. Client reports feeling shaky
- C. Client ate only half of breakfast
- D. Client is sweating
Correct answer: A
Rationale: A blood glucose of 100 mg/dL is relatively low for administering insulin, especially if the client has not eaten adequately; further assessment and contacting the provider are necessary. Hypoglycemia can be a serious concern when administering insulin, and a blood glucose level of 100 mg/dL indicates a risk of hypoglycemia. Holding the insulin and contacting the healthcare provider is crucial to prevent hypoglycemia-related complications. Choices B, C, and D are not immediate concerns for holding insulin as they do not directly indicate a risk of hypoglycemic events.
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