HESI LPN
HESI PN Exit Exam
1. When reinforcing diet teaching for a client diagnosed with hypokalemia, which foods should the PN encourage the client to eat? Select All That Apply
- A. Orange juice, oranges, bananas
- B. All are applicable
- C. Collard greens, kale, turnips
- D. Soybeans, lima beans, spinach
Correct answer: B
Rationale: The correct answer is B: All are applicable. Foods rich in potassium, such as orange juice, oranges, bananas, collard greens, kale, soybeans, lima beans, and spinach, are essential for managing hypokalemia. These options provide a significant source of potassium, which helps in maintaining normal heart and muscle function. Choice A is incorrect because it does not include all the appropriate potassium-rich foods. Choice C is incorrect as it only mentions vegetables rich in potassium, missing out on other essential sources like fruits and beans. Choice D is incorrect as it lacks key potassium-rich foods like oranges and bananas.
2. While caring for a client with an AV fistula in the left forearm, the PN observed a palpable buzzing sensation over the fistula. What action should the PN take?
- A. Loosen the fistula dressing
- B. Report the presence of a bounding pulse
- C. Document that the fistula is intact
- D. Apply gentle pressure over the site
Correct answer: C
Rationale: A palpable buzzing sensation, known as a thrill, over an AV fistula indicates proper functioning. The correct action for the PN is to document that the fistula is intact. Choice A is incorrect because there is no need to loosen the fistula dressing when the thrill is felt. Choice B is incorrect as a bounding pulse is not related to the observed buzzing sensation. Choice D is incorrect because applying pressure is unnecessary when a thrill is present, indicating proper AV fistula function.
3. Which task could the PN safely delegate to the UAP?
- A. Oral feeding of a two-year-old child after application of a hip spica cast
- B. Assessment of the placement and patency of a NG tube
- C. Participation in staff rounds to record notes regarding client goals
- D. Evaluation of a client's incisional pain following narcotic administration
Correct answer: A
Rationale: The correct answer is A because oral feeding of a child is a task that can be safely delegated to an unlicensed assistive personnel (UAP). This task involves providing basic care and does not require specialized nursing skills. Choices B, C, and D involve assessments, recording client goals, and evaluating pain, respectively, which all require specialized nursing knowledge, judgment, and skills. These tasks are not within the scope of practice for a UAP.
4. Which of the following is the best method for confirming nasogastric tube placement?
- A. Auscultating over the stomach while injecting air
- B. Checking the pH of the aspirate
- C. Observing the patient’s response during feeding
- D. Measuring the external length of the tube
Correct answer: B
Rationale: Checking the pH of the aspirate is the most reliable method to confirm nasogastric tube placement as it provides direct evidence of the tube's location in the stomach. When the pH is acidic (pH < 5), it indicates that the tube is correctly placed in the stomach. Auscultating over the stomach while injecting air may not always be accurate, as the sound can be misleading due to various factors. Observing the patient’s response during feeding is not a definitive method for confirming tube placement, as it can be influenced by other factors. Measuring the external length of the tube does not ensure correct placement within the GI tract and can be affected by external factors like patient anatomy.
5. You are teaching students about how hyperosmotic agents (osmotic diuretics) are used to treat intracranial pressure. Which of the following is NOT one of the functions of hyperosmotic agents?
- A. Reduces brain metabolism and systemic blood pressure
- B. Reduces cerebral edema
- C. Dehydrates the brain
- D. Draws fluids from extravascular spaces into the plasma
Correct answer: A
Rationale: Hyperosmotic agents primarily work by reducing cerebral edema, dehydrating the brain, and drawing fluids from extravascular spaces into the plasma. However, they do not have a direct effect on reducing brain metabolism or systemic blood pressure. Therefore, the correct answer is A. Choice B is correct as hyperosmotic agents do help in reducing cerebral edema. Choice C is accurate as hyperosmotic agents dehydrate the brain. Choice D is also true as these agents draw fluids from extravascular spaces into the plasma.
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