HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. The provider orders Lanoxin (digoxin) 0.125 mg PO and furosemide 40 mg every day. Which of these foods would the nurse reinforce for the client to eat at least daily?
- A. Spaghetti
- B. Watermelon
- C. Chicken
- D. Tomatoes
Correct answer: B
Rationale: The correct answer is 'Watermelon.' Watermelon is high in potassium, which is important to counteract the potassium loss caused by furosemide. Furosemide is a loop diuretic that can lead to potassium depletion, so consuming potassium-rich foods like watermelon can help maintain electrolyte balance. Choices A, C, and D do not specifically address the need for potassium in this scenario and are not as beneficial for addressing the potential electrolyte imbalance caused by furosemide.
3. An adult client is found to be unresponsive on morning rounds. After checking for responsiveness and calling for help, the next action that should be taken by the nurse is to:
- A. Check the carotid pulse
- B. Deliver 5 abdominal thrusts
- C. Give 2 rescue breaths
- D. Open the client's airway
Correct answer: D
Rationale: In this scenario, the priority is to ensure the client has a clear airway to facilitate breathing. After verifying unresponsiveness and calling for help, the nurse should open the client's airway to aid in maintaining ventilation. Checking the carotid pulse (Choice A) may be important but comes after ensuring a clear airway. Delivering abdominal thrusts (Choice B) is indicated for choking, not for an unresponsive client. Giving rescue breaths (Choice C) is also important but only after the airway has been established.
4. A charge nurse is observing a newly licensed nurse perform tracheostomy care for a client. Which of the following actions by the newly licensed nurse requires intervention?
- A. Obtaining cotton balls for the tracheostomy care
- B. Using a sterile water bottle
- C. Checking the suction equipment
- D. Wearing a sterile gown
Correct answer: A
Rationale: The correct answer is A. Obtaining cotton balls for tracheostomy care is not recommended due to the risk of fiber contamination. Sterile gauze should be used instead. Choice B, using a sterile water bottle, is a correct and appropriate action for tracheostomy care to maintain cleanliness. Choice C, checking the suction equipment, is also a necessary step to ensure it is functioning properly for the procedure. Choice D, wearing a sterile gown, is a standard precaution to maintain a sterile environment during tracheostomy care.
5. When performing nasotracheal suctioning on a client with a respiratory infection, what technique should be used?
- A. Apply intermittent suction when withdrawing the catheter.
- B. Apply continuous suction during insertion of the catheter.
- C. Apply suction only during insertion of the catheter.
- D. Insert the catheter while the client is exhaling.
Correct answer: A
Rationale: The correct technique for nasotracheal suctioning is to apply intermittent suction when withdrawing the catheter. This method helps prevent damage to the mucosa and is the recommended approach. Continuous suction during insertion (choice B) can cause trauma to the airway lining. Applying suction only during insertion (choice C) is not sufficient for effective removal of secretions. Inserting the catheter while the client is exhaling (choice D) does not follow the standard procedure for nasotracheal suctioning.
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