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. A client with a tracheostomy collar has a decrease in heart rate and oxygen saturation during tracheal suctioning. Which of the following actions should the nurse take?
- A. Elevate the head of the bed.
- B. Remove the inner cannula.
- C. Irrigate the stoma.
- D. Discontinue suctioning.
Correct answer: D
Rationale: The correct action for the nurse to take in this situation is to discontinue suctioning. Suctioning should be stopped immediately to prevent further decrease in heart rate and oxygen saturation. Elevating the head of the bed may help with oxygenation, but the priority is to stop the suctioning procedure. Removing the inner cannula or irrigating the stoma are not appropriate actions and could worsen the client's condition.
3. The nurse is caring for a client with a nasogastric (NG) tube. Which action should the nurse take to maintain patency of the tube?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Administer the medication with food to prevent nausea.
- C. Verify tube placement by aspirating stomach contents.
- D. Dilute the medication with normal saline before administration.
Correct answer: A
Rationale: To maintain the patency of a nasogastric (NG) tube, it is essential to flush the tube with 30 ml of water before and after medication administration. This action helps ensure that the tube remains open and free from blockages. Flushing the tube prevents any medication residue from causing blockages, maintaining its patency. Choice B is incorrect because administering medication with food does not relate to maintaining tube patency. Choice C is incorrect as verifying tube placement by aspirating stomach contents is related to confirming correct tube placement, not maintaining patency. Choice D is also incorrect because diluting the medication with normal saline is not primarily aimed at maintaining the tube's patency.
4. A client requires rectal temperature monitoring, and a nurse has a thermometer with a long, slender tip at the bedside. What is the appropriate action for the nurse to take?
- A. Obtain a thermometer with a short, blunt insertion end
- B. Use the available thermometer as is
- C. Request a new thermometer
- D. Measure the temperature orally instead
Correct answer: A
Rationale: When monitoring rectal temperature, it is crucial to use a thermometer with a short, blunt insertion end to prevent injury and ensure accurate readings. Using a thermometer with a long, slender tip can pose a risk of perforation or discomfort for the client. Therefore, the appropriate action for the nurse to take is to obtain a thermometer with a short, blunt insertion end. Using the available thermometer as is would not address the safety concerns. Requesting a new thermometer is unnecessary when a suitable one is available by just obtaining it. Measuring the temperature orally instead would not provide the required rectal temperature monitoring.
5. The nurse is providing discharge teaching to a client who has been prescribed digoxin (Lanoxin). Which statement by the client indicates a need for further teaching?
- A. I should take my pulse before taking the medication.
- B. I will take my medication at the same time every day.
- C. I should avoid taking antacids at the same time as this medication.
- D. I should eat foods high in potassium while taking this medication.
Correct answer: D
Rationale: The correct answer is D. Eating foods high in potassium can lead to hyperkalemia when taken with digoxin, indicating a need for further teaching. Choices A, B, and C are all correct statements that demonstrate understanding of digoxin therapy. Taking the pulse, maintaining a consistent dosing schedule, and avoiding antacids to prevent interactions with digoxin are all appropriate client responses.
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