HESI LPN
HESI Fundamentals 2023 Test Bank
1. A client with pneumonia is receiving antibiotic therapy. Which finding indicates that the treatment is effective?
- A. Decreased white blood cell count
- B. Decreased respiratory rate
- C. Increased breath sounds
- D. Increased heart rate
Correct answer: C
Rationale: The correct answer is C: Increased breath sounds. When a client with pneumonia is receiving antibiotic therapy, increased breath sounds indicate that the lungs are clearing and the pneumonia is resolving. This improvement in breath sounds suggests that the antibiotics are effectively treating the infection. Choices A, B, and D are incorrect because a decreased white blood cell count, decreased respiratory rate, and increased heart rate are not specific indicators of the effectiveness of antibiotic therapy in treating pneumonia. While these parameters may change in response to treatment, they do not directly reflect the resolution of the pneumonia infection.
2. When initiating cardiopulmonary resuscitation (CPR), what assessment finding must the healthcare provider confirm before beginning chest compressions?
- A. Absence of a pulse
- B. Presence of a pulse
- C. Respiratory rate
- D. Blood pressure
Correct answer: A
Rationale: The correct answer is A: Absence of a pulse. Prior to initiating chest compressions during CPR, it is essential to confirm the absence of a pulse. Chest compressions are indicated when there is no detectable pulse as it signifies cardiac arrest. Checking for a pulse is a critical step to ensure that CPR is performed on individuals who truly require it. Choices B, C, and D are incorrect because focusing on the presence of a pulse, respiratory rate, or blood pressure before starting chest compressions can delay life-saving interventions in a person experiencing cardiac arrest.
3. A client asks a nurse about the purpose of advance directives.
- A. Indicate a form of treatment a client is willing to accept.
- B. Specify the client's preferred hospital for treatment.
- C. Determine the client's daily medication schedule.
- D. Outline the client's financial status and insurance coverage.
Correct answer: A
Rationale: The correct answer is A: Advance directives serve to indicate the forms of medical treatment a client wishes to receive or decline in the event they are unable to communicate their preferences. This legal document allows individuals to make decisions about their future healthcare. Choice B is incorrect as advance directives do not specify the client's preferred hospital for treatment. Choice C is incorrect as advance directives do not determine the client's daily medication schedule; this is typically addressed in a medication administration record. Choice D is incorrect as advance directives do not outline the client's financial status and insurance coverage, but rather focus on healthcare treatment preferences.
4. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
5. A nurse is planning care for a client who has hypernatremia. Which of the following actions should the nurse include in the plan of care?
- A. Infuse hypotonic IV fluids.
- B. Implement a fluid restriction.
- C. Increase sodium intake.
- D. Administer sodium polystyrene sulfonate.
Correct answer: A
Rationale: The correct answer is to infuse hypotonic IV fluids. In hypernatremia, there is an elevated sodium concentration in the blood, and diluting it with hypotonic fluids helps to lower the sodium levels. Implementing a fluid restriction or increasing sodium intake would worsen hypernatremia by further concentrating sodium in the body. Administering sodium polystyrene sulfonate is used for treating hyperkalemia, not hypernatremia.
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