HESI LPN
HESI Fundamentals Study Guide
1. A child is postoperative following a tonsillectomy. Which of the following actions should the nurse take?
- A. Administer analgesics to the child on a routine schedule throughout the day and night.
- B. Offer fluids to the child immediately after surgery.
- C. Allow the child to return to solid foods gradually.
- D. Avoid administering any medication until the child is fully awake.
Correct answer: A
Rationale: Administering analgesics to the child on a routine schedule throughout the day and night is crucial for managing postoperative pain effectively and ensuring the child's comfort. Pain management is a priority in the postoperative period to promote healing and prevent complications. Offering fluids to the child immediately after surgery (Choice B) is essential to prevent dehydration, but pain control takes precedence. Allowing the child to return to solid foods gradually (Choice C) is important, but initially, the child may need to start with clear liquids and progress to soft foods post-tonsillectomy. Avoiding administering any medication until the child is fully awake (Choice D) is not advisable because timely pain relief is essential for the child's comfort and recovery.
2. When reviewing EBP about the administration of O2 therapy, what is the recommended maximum flow rate for regulating O2 via nasal cannula?
- A. Regulate O2 via nasal cannula no more than 6L
- B. Regulate O2 via nasal cannula no more than 2L
- C. Regulate O2 via nasal cannula no more than 4L
- D. Regulate O2 via nasal cannula no more than 8L
Correct answer: A
Rationale: The correct answer is to regulate O2 via nasal cannula no more than 6L. This flow rate is generally recommended to ensure adequate oxygen delivery without causing discomfort or potential harm to the patient. Choices B, C, and D are incorrect as they suggest flow rates that are either too low (2L, 4L) or too high (8L). A flow rate of 2L might not provide sufficient oxygen, while 4L could be inadequate for some patients. On the other hand, a flow rate of 8L could be excessive and potentially harmful, leading to complications like oxygen toxicity. Therefore, the optimal recommendation is to regulate O2 via nasal cannula at a maximum of 6L to balance effectiveness and safety.
3. A client returning from the surgical suite following a vaginal hysterectomy is awake and asking for something to drink. Her post-op diet prescription reads: 'clear liquids, advance diet as tolerated.' Which of the following is appropriate for the nurse to tell the patient?
- A. ''I am going to listen to your abdomen.''
- B. ''You need to wait until the surgeon evaluates your condition.''
- C. ''You can have clear liquids, but let me check with the surgeon first.''
- D. ''It is best to start with small sips of clear liquids and observe how you feel.''
Correct answer: A
Rationale: The correct answer is A: ''I am going to listen to your abdomen.'' Listening to the abdomen helps assess bowel sounds and ensure that the client’s gastrointestinal system is ready for oral intake. Choice B is incorrect because the client does not necessarily need to wait for the surgeon to evaluate before starting with clear liquids. Choice C is incorrect because unless there are specific contraindications, clear liquids are usually allowed after surgery. Choice D is incorrect as it does not address the immediate assessment needed before initiating oral intake post-operatively.
4. A client has a sodium level of 125 mEq/L. Which of the following findings should the nurse expect?
- A. Abdominal cramping
- B. Increased thirst
- C. Elevated blood pressure
- D. Elevated heart rate
Correct answer: A
Rationale: Abdominal cramping is a common manifestation of hyponatremia (low sodium levels). When sodium levels drop, it can lead to changes in the body's water balance, affecting cell function and causing symptoms like abdominal cramping. Increased thirst (choice B) is more commonly associated with hypernatremia (high sodium levels) due to the body's attempt to dilute the excess sodium. Elevated blood pressure (choice C) and elevated heart rate (choice D) are not typically direct manifestations of low sodium levels and are more commonly seen in conditions like dehydration or shock.
5. The healthcare provider prescribes morphine sulfate 4mg IM STAT. Morphine comes in 8 mg per ml. How many ml should the LPN/LVN administer?
- A. 0.5 ml
- B. 1 ml
- C. 1.5 ml
- D. 2 ml
Correct answer: A
Rationale: To administer 4 mg of morphine, as prescribed, the LPN/LVN needs to calculate the correct volume based on the concentration provided (8 mg per ml). Since the desired dose is 4 mg, half of 8 mg (0.5 ml) is required to administer the correct amount. Therefore, the correct answer is 0.5 ml. Choices B, C, and D are incorrect as they would either underdose or overdose the patient.
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