HESI LPN
HESI Practice Test for Fundamentals
1. The client is advised to take dexamethasone (Decadron) with food or milk. What is the physiological basis for this advice?
- A. Inhibits pepsin production
- B. Stimulates hydrochloric acid production
- C. Delays stomach emptying time
- D. Reduces hydrochloric acid production
Correct answer: B
Rationale: The correct answer is B: Stimulates hydrochloric acid production. Dexamethasone can stimulate the production of hydrochloric acid in the stomach, which may lead to irritation of the stomach lining. Taking dexamethasone with food or milk helps to neutralize or buffer the acid, reducing the risk of stomach irritation. Choice A is incorrect because dexamethasone does not inhibit pepsin production. Choice C is incorrect as dexamethasone does not slow stomach emptying time. Choice D is incorrect as dexamethasone does not reduce hydrochloric acid production.
2. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the LPN/LVN monitor closely while the client is taking this medication?
- A. Blood glucose level
- B. Prothrombin time (PT) and INR
- C. Serum potassium level
- D. Serum creatinine level
Correct answer: B
Rationale: The LPN/LVN should closely monitor Prothrombin time (PT) and INR (Choice B) levels in a client receiving warfarin. These values are crucial to ensure the medication's effectiveness and prevent complications like bleeding. Monitoring blood glucose level (Choice A) is not directly relevant to warfarin therapy. While serum potassium level (Choice C) and serum creatinine level (Choice D) are important for other conditions or medications, they are not specifically required to be monitored when a client is on warfarin.
3. A client's readiness to learn about insulin administration is being assessed by a nurse. Which of the following statements should the nurse identify as an indication that the client is ready to learn?
- A. ''I can concentrate best in the morning.''
- B. ''It is difficult to read the instructions because my glasses are at home.''
- C. ''I'm wondering why I need to learn this.''
- D. ''You will have to talk to my wife about this.''
Correct answer: A
Rationale: Choice A is the correct answer because the client's statement about the best time to concentrate indicates readiness for learning. This statement shows an awareness and interest in learning. Choice B is incorrect as it indicates a barrier to learning due to not having glasses. Choice C is incorrect as it shows a lack of understanding or motivation for learning. Choice D is incorrect as it suggests a lack of personal involvement or responsibility in the learning process since the client is deflecting the responsibility to someone else.
4. A nurse manager is preparing to review medication documentation with a group of newly licensed nurses. Which of the following statements should the nurse manager plan to include in the teaching?
- A. Use the complete name of the medication magnesium sulfate.
- B. Delete the space between the numerical dose and the unit of measure.
- C. Write the letter U when noting the dosage of insulin.
- D. Use the abbreviation SC when indicating an injection.
Correct answer: A
Rationale: The correct answer is to use the complete name of the medication magnesium sulfate. This is important to prevent confusion with morphine sulfate, which is abbreviated as MSO4. Choice B is incorrect as it is essential to maintain a space between the numerical dose and the unit of measure for clarity in medication documentation. Choice C is incorrect as the standard abbreviation for units is 'U' for international units, not for the dosage of insulin. Choice D is incorrect as the appropriate abbreviation for subcutaneous injection is 'SC,' not just 'SC.' Therefore, the nurse manager should emphasize using the full name of medications to avoid errors and ensure patient safety.
5. When should the nurse plan to collect a sputum specimen for culture and sensitivity as ordered by a client's provider?
- A. In the morning upon rising.
- B. Immediately after the client eats breakfast.
- C. Before the client goes to bed.
- D. After the client has had a drink of water.
Correct answer: A
Rationale: The correct time to collect a sputum specimen for culture and sensitivity is in the morning upon rising. This timing ensures the most concentrated sample as sputum produced overnight tends to accumulate and sit in the airways, providing a quality sample for testing. Collecting the specimen immediately after eating breakfast (choice B) may introduce food particles that could contaminate the sample. Collecting it before bed (choice C) may lead to a diluted sample due to daily activities. Collecting the specimen after having a drink of water (choice D) can also result in a diluted sample, impacting the accuracy of the test results.
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