HESI RN
HESI Fundamentals Practice Exam
1. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
2. What type of technique should the nurse observe when preparing to insert an indwelling catheter?
- A. Clean technique.
- B. Medical Asepsis.
- C. Isolation Protocol.
- D. Sterile Technique.
Correct answer: D
Rationale: When inserting an indwelling catheter, the nurse must observe sterile technique to minimize the risk of infections. Sterile technique involves using sterile equipment and maintaining a sterile field to prevent introducing pathogens into the urinary tract.
3. What assessment finding places a client at risk for problems associated with impaired skin integrity?
- A. Scattered macules on the face
- B. Capillary refill of 5 seconds
- C. Smooth nail texture
- D. Presence of skin tenting
Correct answer: B
Rationale: The correct answer is B. A capillary refill time greater than 3 seconds indicates poor perfusion, leading to impaired skin integrity. Delayed capillary refill can compromise blood flow to the skin, increasing the risk of pressure ulcers or wounds due to reduced tissue perfusion. Choices A, C, and D are incorrect because scattered macules on the face, smooth nail texture, and presence of skin tenting are not direct indicators of impaired skin integrity or risk for skin problems.
4. The healthcare provider plans to administer diazepam, 4 mg IV push, to a client with severe anxiety. How many milliliters should the healthcare provider administer? (Round to the nearest tenth.)
- A. 0.2 mL
- B. 0.8 mL
- C. 1.25 mL
- D. 2.0 mL
Correct answer: B
Rationale: To calculate the volume to administer, use the formula (1 mL × 4 mg) / 5 mg = 0.8 mL. The healthcare provider should administer 0.8 mL of diazepam for a dosage of 4 mg IV push. Choice A is incorrect because it results from an incorrect calculation. Choices C and D are incorrect as they do not align with the correct calculation based on the provided dosage.
5. While observing an unlicensed assistive personnel (UAP) providing a total bed bath for a confused and lethargic client, the nurse notes the UAP soaking the client’s foot in a basin of warm water placed on the bed. What action should the nurse take?
- A. Remove the basin of water from the client’s bed immediately
- B. Remind the UAP to dry between the client’s toes completely
- C. Advise the UAP that this procedure may lead to skin damage
- D. Add skin cream to the basin of water while the foot is soaking
Correct answer: B
Rationale: The correct action for the nurse to take in this situation is to remind the unlicensed assistive personnel (UAP) to dry between the client’s toes completely. Failing to dry between the toes can lead to skin breakdown due to excessive moisture accumulation. Proper drying is essential to maintain skin integrity and prevent complications in the client's care. Removing the basin of water immediately may disrupt the care process and not address the root cause of the issue. Advising about potential skin damage is not as direct and actionable as reminding to dry between the toes. Adding skin cream to the water may not be appropriate without specific orders and can potentially worsen the situation by increasing moisture.
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