HESI LPN
HESI Fundamentals Study Guide
1. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
2. During an initial history and physical assessment of a 3-month-old brought into the clinic for spitting up and excessive gas, what would the nurse expect to find?
- A. Increased temperature and lethargy
- B. Restlessness and increased mucus production
- C. Increased sleeping and listlessness
- D. Diarrhea and poor skin turgor
Correct answer: B
Rationale: Restlessness and increased mucus production are common signs of gastrointestinal issues or reflux in infants, which could explain the symptoms of spitting up and excessive gas. Increased temperature and lethargy (Choice A) are more indicative of an infection rather than gastrointestinal issues. Increased sleeping and listlessness (Choice C) are not typical signs associated with the symptoms described. Diarrhea and poor skin turgor (Choice D) are not directly related to the symptoms of spitting up and gas in this scenario.
3. A client has a sodium level of 125. What findings should the nurse expect?
- A. Abdominal cramping
- B. Elevated blood pressure
- C. Decreased heart rate
- D. Increased thirst
Correct answer: A
Rationale: Low sodium levels (hyponatremia) often present with various symptoms, including abdominal cramping. Abdominal cramping is a common manifestation of hyponatremia due to the altered electrolyte balance. Option B ('Elevated blood pressure') is incorrect because low sodium levels typically lead to decreased blood pressure, not elevated. Option C ('Decreased heart rate') is incorrect as low sodium levels are more likely to cause an irregular heart rate rather than a decreased heart rate. Option D ('Increased thirst') is incorrect because excessive thirst is more commonly associated with high sodium levels (hypernatremia) rather than low sodium levels.
4. When a client decides not to have surgery despite significant blockages of the coronary arteries, it is an example of which of the following ethical principles?
- A. Fidelity
- B. Autonomy
- C. Justice
- D. Nonmaleficence
Correct answer: B
Rationale: The correct answer is autonomy. Autonomy is the ethical principle that upholds an individual's right to make decisions about their healthcare, including the choice to refuse treatment or surgery. In this scenario, the client's decision not to have surgery despite the recommendation is an exercise of autonomy. Choice A, fidelity, refers to being faithful and keeping promises, which is not applicable in this situation. Choice C, justice, pertains to fair and equal distribution of resources and treatment, not the individual's right to make decisions. Choice D, nonmaleficence, relates to the obligation to do no harm, which is not directly applicable to the client's decision to refuse surgery.
5. Which nursing action prevents injury to a client's eye during the administration of eye drops?
- A. Holding the tip of the container above the conjunctival sac
- B. Rinsing the eye with saline before administration
- C. Placing the client in a supine position
- D. Pressing gently on the lower eyelid to open the eye
Correct answer: A
Rationale: The correct nursing action to prevent injury to a client's eye during the administration of eye drops is to hold the tip of the container above the conjunctival sac. This technique helps to prevent direct contact between the container and the eye, reducing the risk of injury. Rinsing the eye with saline before administration (Choice B) is not a standard practice and may not necessarily prevent injury. Placing the client in a supine position (Choice C) is not directly related to preventing eye injury during eye drop administration. Pressing gently on the lower eyelid to open the eye (Choice D) is not recommended as it can potentially cause injury or discomfort to the client.
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