HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is caring for a client with a chest tube. Which observation requires immediate intervention?
- A. Constant bubbling in the suction control chamber
- B. Intermittent bubbling in the water seal chamber
- C. Drainage of 50 ml per hour
- D. Crepitus around the insertion site
Correct answer: D
Rationale: Crepitus around the chest tube insertion site may indicate subcutaneous emphysema, a serious condition that requires immediate attention. It can be a sign of an air leak in the lung or surrounding tissues. Constant bubbling in the suction control chamber is expected in a functioning chest tube system as it indicates proper suction. Intermittent bubbling in the water seal chamber is also normal, showing that the system is functioning correctly, allowing air to escape but not re-enter. Drainage of 50 ml per hour is within the expected range for chest tube output and does not require immediate intervention unless there are other concerning signs such as rapid increase or a sudden change in color or consistency.
2. When ethical dilemmas arise, what should newly licensed nurses expect and identify as an ethical dilemma?
- A. A nurse on a medical-surgical unit demonstrates signs of chemical impairment.
- B. A nurse overhears another nurse telling an older adult client that if he doesn’t stay in bed, she will have to apply restraints.
- C. A family has conflicting feelings about the initiation of enteral tube feedings for their father, who is terminally ill.
- D. A client who is terminally ill hesitates to name their partner on their durable power of attorney form.
Correct answer: C
Rationale: An ethical dilemma involves a situation where there are conflicting values or principles that make it difficult to make a clear decision. In the given scenarios, option C best represents an ethical dilemma as the family has conflicting feelings about initiating enteral tube feedings for their terminally ill father. This situation presents a clash between different values and beliefs, making it challenging to reach a resolution. Options A, B, and D do not illustrate conflicting values or principles that characterize an ethical dilemma. Option A describes a nurse's impairment, which is a concern but not a direct ethical dilemma. Option B depicts a potential breach of client autonomy and restraint use, which is an ethical issue but not a true ethical dilemma. Option D involves a client's personal decision regarding a durable power of attorney form, which, although important, does not present conflicting values or principles that define an ethical dilemma.
3. A charge nurse is observing a newly licensed nurse prepare a sterile field. Which of the following actions should the charge nurse identify as contaminating the sterile field?
- A. The nurse opens the sterile field on a wet surface.
- B. The nurse turns away from the sterile field.
- C. The nurse uses a non-sterile glove to touch the sterile field.
- D. The nurse touches the edge of the sterile drape with her hand.
Correct answer: A
Rationale: The correct answer is A. Opening the sterile field on a wet surface contaminates it, rendering it unsafe for use. Moisture can carry microorganisms that can compromise the sterility of the field. Choice B is incorrect because turning away from the sterile field alone does not necessarily contaminate it unless the nurse touches non-sterile items. Choice C is incorrect because using a non-sterile glove to touch the sterile field directly introduces contaminants. Choice D is incorrect as touching the edge of the sterile drape with a hand may not necessarily contaminate the entire field, unlike opening it on a wet surface.
4. After completing an assessment and determining that a client has a problem, what should the LPN/LVN do next?
- A. Determine the etiology of the problem.
- B. Prioritize nursing care interventions.
- C. Plan appropriate interventions.
- D. Collaborate with the client to set goals.
Correct answer: A
Rationale: After identifying a problem in a client, the next step for the LPN/LVN is to determine the etiology or cause of the problem. Understanding the root cause of the issue is essential as it guides the development of appropriate interventions. Option B, prioritizing nursing care interventions, is premature without knowing the cause of the problem. Option C, planning appropriate interventions, also relies on knowing the etiology first to ensure the interventions directly address the underlying issue. Collaborating with the client to set goals, as mentioned in option D, is important but typically comes after understanding the cause of the problem to ensure the goals are relevant and effective.
5. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hours. The healthcare professional should set the pump to deliver how many mL/hr?
- A. 107 mL/hr
- B. 75 mL/hr
- C. 90 mL/hr
- D. 60 mL/hr
Correct answer: A
Rationale: To calculate the mL/hr rate for the infusion, divide the total volume (750 mL) by the total time (7 hours). 750 mL ÷ 7 hours = 107 mL/hr. This means that the pump should be set to deliver approximately 107 mL/hr. Choice B (75 mL/hr) is incorrect because it does not reflect the correct calculation. Choice C (90 mL/hr) is incorrect as it does not align with the accurate calculation. Choice D (60 mL/hr) is incorrect as it does not match the correct mL/hr rate obtained through the calculation.
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