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 is expressing anger over his diagnosis of colorectal cancer. Which of the following actions should the nurse take?
- A. Discuss the risk factors for colorectal cancer.
- B. Focus teaching on addressing the client's anger and emotional response.
- C. Provide the client with emotional support and reassurance about his feelings.
- D. Reassure the client that this is an expected response to grief.
Correct answer: D
Rationale: The correct answer is D. During the anger stage of grief, it is essential for the nurse to reassure the client that anger is a normal reaction to a cancer diagnosis. This validation of the client's emotions can help in providing emotional support. Choice A is incorrect because discussing risk factors for colorectal cancer does not address the client's current emotional state. Choice B is incorrect because focusing teaching on the client's future management does not directly address the client's need for emotional support in the present. Choice C is incorrect because providing written information about loss and grief phases is not as immediately comforting as directly reassuring the client about his feelings of anger.
3. When teaching a client how to administer medication through a jejunostomy tube, which of the following instructions should the nurse include?
- A. Flush the tube before and after each medication.
- B. Mix medications with enteral feeding.
- C. Push tablets through the tube slowly.
- D. Mix crushed medications before dissolving them in water.
Correct answer: A
Rationale: The correct answer is to flush the tube before and after each medication administration. This helps prevent clogging and ensures the medication is delivered properly. Mixing medications with enteral feeding (choice B) is incorrect as medications should be administered separately. Pushing tablets through the tube (choice C) is not recommended as they should be properly dissolved before administration. Mixing all crushed medications before dissolving them in water (choice D) is incorrect; medications should be dissolved individually to avoid interactions or inconsistencies in dosages.
4. The healthcare professional is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which action is most important?
- A. Monitor the client's respiratory rate
- B. Check the client's urine output
- C. Administer the potassium chloride as a rapid IV push
- D. Dilute the potassium chloride in an appropriate IV solution
Correct answer: D
Rationale: The correct answer is to dilute the potassium chloride in an appropriate IV solution. Potassium chloride should never be administered as a rapid IV push as it can lead to severe complications, including cardiac arrhythmias. Diluting the medication and administering it slowly helps reduce the risk of adverse effects. Monitoring the client's respiratory rate (Choice A) and checking urine output (Choice B) are important aspects of patient assessment but not the most crucial when administering potassium chloride. Administering potassium chloride as a rapid IV push (Choice C) is dangerous and can result in serious harm to the client.
5. A healthcare professional is preparing to perform a sterile dressing change for a client. Which of the following actions should the healthcare professional plan to take?
- A. Don sterile gloves after opening sterile dressing supplies
- B. Set up the sterile field at waist level
- C. Consider the entire border of the sterile field as contaminated
- D. Place the cap of a sterile solution inside the sterile field
Correct answer: B
Rationale: Setting up the sterile field at waist level is crucial to maintaining its sterility during a dressing change. Choice A is incorrect because sterile gloves should be worn after opening sterile dressing supplies to prevent contamination. Choice C is incorrect as the entire border of the sterile field should be considered contaminated to maintain sterility. Choice D is incorrect because the cap of a sterile solution should never be placed inside the sterile field to prevent contamination.
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