HESI LPN
HESI Practice Test for Fundamentals
1. A healthcare provider is caring for several clients who are receiving oxygen therapy. Which client should the provider assess most frequently for manifestations of oxygen toxicity?
- A. 100% oxygen via partial rebreathing mask
- B. 2 liters per minute via nasal cannula
- C. 4 liters per minute via simple mask
- D. 6 liters per minute via face mask
Correct answer: A
Rationale: When a client is receiving 100% oxygen via a partial rebreathing mask, there is a higher risk for oxygen toxicity due to the higher concentration of oxygen delivered. This client should be assessed most frequently for manifestations of oxygen toxicity. Choices B, C, and D are less likely to result in oxygen toxicity compared to 100% oxygen delivery via a partial rebreathing mask.
2. A healthcare professional is caring for a client who has pharyngeal diphtheria. Which of the following types of transmission precautions should the healthcare professional initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective
Correct answer: B
Rationale: The correct answer is B: Droplet. Droplet precautions are required for infections that spread via droplets larger than 5 microns in diameter, such as pharyngeal diphtheria. Contact precautions are used for diseases that spread by direct or indirect contact. Airborne precautions are for diseases that spread through small particles in the air. Protective precautions are not a standard precautionary measure for specific infections like pharyngeal diphtheria.
3. A newly licensed nurse is preparing to administer medications to a client. The nurse notes that the provider has prescribed a medication that is unfamiliar. Which of the following actions should the nurse take?
- A. Consult the medication reference book available on the unit.
- B. Administer the medication as ordered.
- C. Ask a colleague for information about the medication.
- D. Contact the provider to clarify the medication.
Correct answer: A
Rationale: When encountering an unfamiliar medication, the safest action for a nurse is to consult the medication reference book available on the unit. This resource provides accurate and detailed information about medications, including indications, dosages, side effects, and nursing considerations. Administering a medication without understanding it (choice B) can lead to medication errors and harm to the client. Asking a colleague for information (choice C) may not always provide accurate or up-to-date information. Contacting the provider (choice D) should be reserved for situations where immediate clarification is needed, but consulting the reference book is the initial step to gain knowledge and ensure safe medication administration.
4. A healthcare professional is preparing to administer metoprolol 200 mg PO daily. The medication available is metoprolol 100 mg/tablet. How many tablets should the healthcare professional administer? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 1 tablet
- B. 2 tablets
- C. 0.5 tablet
- D. 4 tablets
Correct answer: B
Rationale: To administer 200 mg of metoprolol using 100 mg tablets, the healthcare professional should give 2 tablets. Each tablet contains 100 mg of metoprolol, so 2 tablets will provide the required 200 mg dose. Choice A is incorrect because 1 tablet would only provide 100 mg, which is insufficient. Choice C is incorrect as fractions of tablets are usually not used in practice to ensure accurate dosing. Choice D is incorrect as it would result in an overdose, providing 400 mg instead of the prescribed 200 mg.
5. The healthcare professional is preparing to administer a medication through a nasogastric (NG) tube. Which action should the healthcare professional take to ensure proper administration?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Administer the medication with food to prevent nausea.
- C. Verify tube placement by aspirating stomach contents.
- D. Dilute the medication with normal saline before administration.
Correct answer: A
Rationale: Flushing the NG tube with water before and after medication administration is essential to ensure the tube is patent and prevent clogging. This action helps in clearing the tube and ensures that the medication is delivered properly. Administering medication with food (Choice B) may not be appropriate for all medications and can interfere with their absorption. Verifying tube placement by aspirating stomach contents (Choice C) is important but does not directly relate to ensuring proper medication administration. Diluting the medication with normal saline (Choice D) is not a standard practice for administering medications through an NG tube.
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