HESI LPN
HESI Fundamentals Study Guide
1. 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.
2. A nurse is preparing to insert an IV catheter for an adult client. Which of the following actions should the nurse take?
- A. Choose the most distal site on the selected extremity
- B. Apply a cool compress to the selected extremity before insertion of the IV catheter
- C. Stroke the selected extremity before insertion of the IV catheter
- D. Place the tourniquet above the proposed insertion site
Correct answer: C
Rationale: When preparing to insert an IV catheter, stroking the extremity before insertion helps to visualize veins, making it easier to locate a suitable vein for catheter insertion. Choosing the most distal site on the extremity is correct because veins more distal are preferred for IV catheter insertion. Applying a cool compress to the extremity before insertion is unnecessary and not a standard practice. Placing the tourniquet below the proposed insertion site is incorrect; the tourniquet should be placed above the proposed insertion site to help engorge the veins for easier visualization and access.
3. Before donning gloves to perform a procedure, proper hand hygiene is essential. The healthcare professional understands that the most important aspect of hand hygiene is the amount of:
- A. Temperature
- B. Time
- C. Friction
- D. Soap
Correct answer: C
Rationale: The correct answer is C: Friction. The amount of friction is crucial in effective hand hygiene to remove microorganisms. Rubbing hands together with friction helps to dislodge and remove dirt, oils, and microorganisms. While temperature and soap are important factors in hand hygiene, the mechanical action of friction plays a more significant role in physically removing contaminants. Time is also important in hand hygiene practice, but without adequate friction, the effectiveness of the process is compromised.
4. The nurse is planning care for a 12-year-old child with sickle cell disease in a vaso-occlusive crisis affecting the elbow. Which one of the following should be the priority?
- A. Limiting fluids
- B. Client-controlled analgesia
- C. Applying cold compresses to the elbow
- D. Performing passive range of motion exercises
Correct answer: B
Rationale: During a vaso-occlusive crisis in sickle cell disease, the priority intervention is effective pain management. Client-controlled analgesia allows the child to self-administer pain relief as needed, promoting comfort and reducing stress. Limiting fluids (choice A) is not appropriate in this scenario as hydration is essential to prevent complications. Cold compresses (choice C) may provide some comfort but do not address the underlying pain. Passive range of motion exercises (choice D) are contraindicated during a vaso-occlusive crisis due to the risk of further pain and tissue damage.
5. A nurse on a medical-surgical unit is caring for a client who has a new prescription for wrist restraints. Which of the following actions should the nurse take?
- A. Pad the client’s wrists before applying the restraints
- B. Tie the restraints to the side rails of the bed
- C. Secure the restraints to the bed frame
- D. Use a quick-release knot to tie the restraints
Correct answer: A
Rationale: The correct action for the nurse to take when a client has a new prescription for wrist restraints is to pad the client’s wrists before applying the restraints. This is important to prevent skin breakdown and injury. Tying the restraints to the side rails of the bed (Choice B) is unsafe and can lead to potential harm for the client. Similarly, securing the restraints to the bed frame (Choice C) is not appropriate as it can restrict the client's movement and cause discomfort. Using a quick-release knot to tie the restraints (Choice D) is also incorrect as it may compromise the effectiveness of the restraints in ensuring client safety.
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