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. The LPN observes an unlicensed assistive personnel (UAP) taking a client's blood pressure with a cuff that is too small, but the blood pressure reading obtained is within the client's usual range. What action is most important for the nurse to implement?
- A. Tell the UAP to use a larger cuff at the next scheduled assessment.
- B. Reassess the client's blood pressure using a larger cuff.
- C. Have the unit educator review this procedure with the UAPs.
- D. Teach the UAP the correct technique for assessing blood pressure.
Correct answer: B
Rationale: Reassessing the client's blood pressure using a larger cuff is the most important action for the nurse to implement in this situation. Using the correct cuff size is crucial for obtaining accurate blood pressure readings. By reassessing with a larger cuff, the nurse can ensure an accurate measurement and proper monitoring of the client's blood pressure. Choice A is not the best option as it doesn't address the immediate need for accurate blood pressure measurement. Choice C is not the most appropriate action at this time since the immediate concern is ensuring correct blood pressure assessment. Choice D, while important, is not the most critical step in this scenario where immediate reassessment is needed with the correct cuff size.
3. The nurse is caring for an adult who has fluid volume excess. When weighing the client, the nurse should:
- A. Weigh the client upon rising
- B. Weigh the client at different times of the day
- C. Weigh the client after meals
- D. Weigh the client weekly
Correct answer: A
Rationale: Weighing the client upon rising is the correct approach when caring for a client with fluid volume excess. Weighing the client in the morning upon rising provides a consistent and accurate measure of weight, as it helps to eliminate the influence of daily fluctuations that can occur throughout the day. Weighing at different times of the day (choice B) may lead to inconsistent measurements due to variations in food intake, hydration status, and other factors. Weighing the client after meals (choice C) can also lead to inaccurate readings as food and fluid intake can affect weight. Weighing the client weekly (choice D) is not frequent enough to monitor changes in weight accurately for a client with fluid volume excess.
4. A patient with stomatitis is receiving oral care education from a nurse. Which instructions will the nurse provide?
- A. Avoid commercial mouthwashes.
- B. Avoid normal saline rinses.
- C. Brush with a hard toothbrush.
- D. Brush with an alcohol-based toothpaste.
Correct answer: A
Rationale: The correct instruction for a patient with stomatitis is to avoid commercial mouthwashes. Commercial mouthwashes often contain alcohol and other ingredients that can irritate the already inflamed oral mucosa in patients with stomatitis. Avoiding commercial mouthwashes helps prevent further irritation and discomfort. Choice B is incorrect because normal saline rinses are gentle and can help soothe the oral mucosa in patients with stomatitis. Choice C is incorrect because a soft toothbrush should be used to prevent further irritation or injury to the gums. Choice D is incorrect because an alcohol-based toothpaste can be too harsh and drying for patients with stomatitis.
5. During a skin assessment, a client expresses concern about skin cancer due to a lesion on the anterior thigh. Which of the following findings should the nurse report to the provider as a possible indication of a skin malignancy?
- A. An uneven shape
- B. A uniformly colored lesion
- C. A lesion that is small and flat
- D. A lesion that is less than 1 cm in diameter
Correct answer: A
Rationale: An uneven shape of a lesion is a common characteristic of malignant skin lesions. Asymmetric or irregularly shaped lesions are concerning for skin cancer and should be reported promptly for further evaluation and management. Choice B, a uniformly colored lesion, is more indicative of a benign lesion as malignant lesions often exhibit variations in color. Choice C, a lesion that is small and flat, does not necessarily indicate malignancy by itself. Choice D, a lesion that is less than 1 cm in diameter, is more suggestive of a benign lesion, as malignant lesions are typically larger in size.
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