HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of chronic renal failure is admitted with generalized edema. Which laboratory value should the LPN/LVN monitor to assess the client's fluid balance?
- A. Serum potassium
- B. Serum calcium
- C. Serum albumin
- D. Serum sodium
Correct answer: C
Rationale: The correct answer is C, Serum albumin. In clients with chronic renal failure and generalized edema, monitoring serum albumin levels is crucial as it is a key indicator of fluid balance. Low serum albumin levels can contribute to edema formation due to decreased oncotic pressure, indicating fluid imbalance. Serum potassium (Choice A) is more related to kidney function and electrolyte balance in renal failure patients. Serum calcium (Choice B) is important for bone health but is not directly related to fluid balance. Serum sodium (Choice D) is more indicative of hydration status and electrolyte balance but may not directly reflect fluid balance in the context of chronic renal failure and edema.
2. The healthcare provider is caring for a client receiving chemotherapy. Which finding should the LPN/LVN report to the healthcare provider immediately?
- A. Mild nausea
- B. Hair loss
- C. Increased fatigue
- D. Fever of 101.5°F (38.6°C)
Correct answer: D
Rationale: A fever of 101.5°F (38.6°C) in a client undergoing chemotherapy is a significant finding that may indicate an underlying infection, which can be life-threatening due to the client's compromised immune system. Prompt reporting and intervention are crucial to prevent complications. Mild nausea, hair loss, and increased fatigue are common side effects of chemotherapy and are expected findings that do not typically require immediate reporting unless they are severe or significantly impacting the client's well-being. Therefore, the LPN/LVN should prioritize reporting the fever over the other options.
3. The client is being taught how to use a peak flow meter. The nurse explains that this device should be used to:
- A. Determine oxygen saturation
- B. Measure forced expiratory volume
- C. Monitor the atmosphere for the presence of allergens
- D. Provide metered doses for inhaled bronchodilator
Correct answer: B
Rationale: A peak flow meter is used to measure forced expiratory volume, which helps in monitoring asthma. This measurement provides valuable information about how well the client's lungs are functioning and how narrow their airways are. Choice A is incorrect because determining oxygen saturation is typically done using a pulse oximeter. Choice C is incorrect as a peak flow meter is not used to monitor the atmosphere for allergens but rather to assess lung function. Choice D is incorrect as providing metered doses for inhaled bronchodilators is the function of a metered-dose inhaler, not a peak flow meter.
4. A healthcare professional working in the emergency department is witnessing the signing of informed consent forms for the treatment of multiple clients during their shift. Which of the following signatures may the healthcare professional legally witness?
- A. A 16-year-old client who is married
- B. A 27-year-old who has schizophrenia
- C. An adoptive parent who brings in their 8-year-old child
- D. A 17-year-old mother who brings in her toddler
Correct answer: A
Rationale: The correct answer is A. A 16-year-old who is married can legally sign an informed consent form. In this case, being married at 16 may indicate legal emancipation or the ability to consent to medical treatment. Choice B is incorrect because having schizophrenia doesn't automatically imply incapacity to provide informed consent. Choice C is incorrect as an adoptive parent does not have the legal authority to provide consent for medical treatment on behalf of a child without proper documentation. Choice D is incorrect as a 17-year-old mother would generally not have the legal capacity to give consent for her toddler, as parental consent is usually required for minors.
5. A nurse is caring for a group of clients. How should the nurse prevent the spread of infection?
- A. Place a client with TB in a negative pressure room.
- B. Use standard precautions only.
- C. Place a client with TB in a private room.
- D. Use barrier precautions only.
Correct answer: A
Rationale: The correct answer is to place a client with TB in a negative pressure room. Tuberculosis (TB) is an airborne infectious disease, and placing the client in a negative pressure room helps prevent the spread of the infection by containing and filtering the air within the room. Standard precautions (Choice B) are important for preventing the spread of infection in general, but specific precautions are needed for airborne diseases like TB. Placing the client in a private room (Choice C) may not provide adequate ventilation and containment of airborne pathogens. Using barrier precautions (Choice D) alone is not sufficient for preventing the airborne transmission of TB.
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