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 nurse on a surgical unit is receiving a client who had abdominal surgery from the postanesthesia care unit. Which of the following assessments should the nurse make first?
- A. Airway
- B. Blood pressure
- C. Surgical site
- D. Level of consciousness
Correct answer: A
Rationale: The correct answer is to assess the airway first. Ensuring a clear and patent airway is crucial to maintaining adequate oxygenation and ventilation post-surgery. Assessing the airway takes precedence over other assessments as a compromised airway can lead to hypoxia and respiratory distress. Checking blood pressure, the surgical site, or level of consciousness are important but are secondary to ensuring the airway is clear and the client can breathe effectively.
3. When changing the client's dressing, which observation should the nurse report to the client's surgeon for a client recovering from an appendectomy for a ruptured appendix with a surgical wound healing by secondary intention?
- A. A halo of erythema on the surrounding skin
- B. Presence of serous drainage
- C. Edema around the wound
- D. Absence of granulation tissue
Correct answer: A
Rationale: A halo of erythema on the surrounding skin may indicate an infection or inflammation of the wound site, which is critical to report to the surgeon. Erythema, redness, and warmth are signs of inflammation that could potentially be a sign of an infected wound. Serous drainage is a common and expected finding in healing wounds, indicating a normal healing process. Edema around the wound might be expected due to the body's response to tissue injury. The absence of granulation tissue in a wound healing by secondary intention may not be an immediate concern as it forms during the later stages of wound healing.
4. A client asks about the purpose of advance directives. Which of the following statements should the nurse make?
- A. They allow the court to overrule an adult client's refusal of medical treatment.
- B. They indicate the form of treatment a client is willing to accept in the event of a serious illness.
- C. They permit a client to withhold medical information from health care personnel.
- D. They allow health care personnel in the emergency department to stabilize a client's condition.
Correct answer: B
Rationale: The correct answer is B. Advance directives specify the type of medical treatment a client wishes to receive or avoid in the event of a serious illness. Choice A is incorrect because advance directives do not allow the court to overrule a client's refusal of medical treatment; they empower the client to make their own healthcare decisions. Choice C is incorrect because advance directives do not permit a client to withhold medical information; they provide guidance on the client's treatment preferences. Choice D is incorrect because advance directives do not specifically address the actions of health care personnel in the emergency department; they focus on the client's treatment preferences in general.
5. A nurse is providing care to a 17-year-old client in the post-operative care unit (PACU) after an emergency appendectomy. Which finding is an early indication that the client is experiencing poor oxygenation?
- A. Abnormal breath sounds
- B. Cyanosis of the lips
- C. Increasing pulse rate
- D. Pulse oximeter reading of 92%
Correct answer: C
Rationale: An increasing pulse rate can be an early sign of poor oxygenation as the body tries to compensate. Abnormal breath sounds (choice A) can indicate respiratory issues, but they may not always be an early sign of poor oxygenation. Cyanosis of the lips (choice B) is a late sign of inadequate oxygenation. A pulse oximeter reading of 92% (choice D) indicates mild hypoxemia but may not be considered an early indication of poor oxygenation.
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