HESI LPN
HESI PN Exit Exam 2023
1. During a blood transfusion, which sign or symptom should prompt the healthcare provider to immediately stop the transfusion?
- A. Slight increase in blood pressure
- B. Elevated temperature and chills
- C. Mild nausea
- D. Slight headache
Correct answer: B
Rationale: The correct answer is B: Elevated temperature and chills. These symptoms are indicative of a transfusion reaction, which can be severe and life-threatening. It is crucial to stop the transfusion immediately and notify the healthcare provider for further assessment and management. Elevated temperature and chills are classic signs of a transfusion reaction, specifically indicating a possible febrile non-hemolytic reaction. Choice A, a slight increase in blood pressure, is not typically a reason to stop a transfusion unless it is a significant sudden increase. Mild nausea (Choice C) and a slight headache (Choice D) are common side effects of blood transfusions and are not primary indicators of a transfusion reaction that require immediate cessation of the transfusion.
2. Which of the following best describes the role of insulin in the body?
- A. Insulin helps break down glucose into energy for the body
- B. Insulin facilitates the movement of glucose into cells
- C. Insulin converts excess glucose into fat for storage
- D. Insulin increases the breakdown of protein into amino acids
Correct answer: B
Rationale: The correct answer is B: Insulin facilitates the movement of glucose into cells. Insulin is a hormone that helps regulate blood sugar levels by promoting the uptake of glucose from the bloodstream into cells, where it can be used for energy production. Choice A is incorrect because insulin doesn't break down glucose but rather helps cells take up glucose. Choice C is incorrect as insulin does not directly convert glucose into fat; excess glucose is stored as fat by other processes. Choice D is incorrect as insulin does not increase the breakdown of protein into amino acids; its primary role is in glucose metabolism.
3. Which of the following is an appropriate intervention for a patient experiencing a hypertensive crisis?
- A. Placing the patient in a supine position
- B. Administering a beta-blocker intravenously
- C. Encouraging the patient to drink fluids
- D. Applying a cold compress to the forehead
Correct answer: B
Rationale: Administering a beta-blocker intravenously is the correct intervention for a patient experiencing a hypertensive crisis. Beta-blockers help quickly reduce blood pressure and prevent complications such as stroke or heart attack. Placing the patient in a supine position can worsen the condition by reducing venous return and increasing the workload of the heart. Encouraging the patient to drink fluids is not recommended as it can exacerbate hypertension by increasing fluid volume. Applying a cold compress to the forehead does not address the underlying cause of the hypertensive crisis and is unlikely to provide significant benefit.
4. Which electrolyte imbalance is most commonly associated with seizures?
- A. Hyponatremia
- B. Hypercalcemia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: A
Rationale: The correct answer is A: Hyponatremia. Hyponatremia, characterized by low sodium levels in the blood, can lead to cerebral edema and seizures due to water shifting into brain cells. Hypercalcemia (choice B) does not commonly cause seizures but can result in muscle weakness and cardiac arrhythmias. Hyperkalemia (choice C) may lead to muscle weakness and cardiac arrhythmias, but it is less frequently associated with seizures. Hypokalemia (choice D) is linked to muscle weakness and cardiac arrhythmias but is not typically related to seizures.
5. What is the first action a healthcare professional should take when a patient’s nasogastric (NG) tube becomes clogged?
- A. Flush the tube with water
- B. Reposition the patient
- C. Attempt to aspirate the clog with a syringe
- D. Administer a medication to dissolve the clog
Correct answer: C
Rationale: When a patient's nasogastric (NG) tube becomes clogged, the first action to take is to attempt to aspirate the clog with a syringe. This is a standard and initial step to clear the blockage in the tube. Flushing the tube with water (Choice A) may not address the specific clog; repositioning the patient (Choice B) is not directly related to clearing the tube. Administering a medication to dissolve the clog (Choice D) should only be considered after simpler methods like aspiration have been attempted.
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