HESI LPN
HESI Fundamentals Test Bank
1. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
2. The healthcare provider prescribes the diuretic metolazone (Zaroxolyn) 7.5 mg PO. Zaroxolyn is available in 5 mg tablets. How much should the LPN/LVN plan to administer?
- A. 1/2 tablet.
- B. 1 tablet.
- C. 1 1/2 tablets.
- D. 2 tablets.
Correct answer: C
Rationale: To administer 7.5 mg of metolazone (Zaroxolyn), the LPN/LVN should plan to give 1 1/2 tablets since each tablet contains 5 mg. Choice A (1/2 tablet) would not provide the full prescribed dose. Choice B (1 tablet) would only deliver 5 mg, which is less than the prescribed dose. Choice D (2 tablets) would exceed the prescribed dose, resulting in 10 mg instead of the required 7.5 mg. Therefore, the correct answer is to administer 1 1/2 tablets to achieve the prescribed 7.5 mg.
3. The nurse is caring for a client with a tracheostomy who is unable to clear secretions by coughing. What is the most appropriate action for the nurse to take?
- A. Encourage the client to take deep breaths.
- B. Provide humidified oxygen via tracheostomy collar.
- C. Suction the tracheostomy tube as needed.
- D. Change the tracheostomy dressing daily.
Correct answer: C
Rationale: Suctioning the tracheostomy tube as needed is the most appropriate action in this scenario. When a client with a tracheostomy is unable to clear secretions by coughing, suctioning helps remove the excess secretions from the airway, ensuring proper breathing. Encouraging deep breaths (Choice A) may not effectively address the immediate need to clear secretions. Providing humidified oxygen (Choice B) can help with oxygenation but does not directly address the issue of clearing secretions. Changing the tracheostomy dressing daily (Choice D) is important for maintaining cleanliness but is not the priority when the client is unable to clear secretions.
4. A healthcare professional is collecting a urine specimen for a client to test via urine dipstick to determine the urine's specific gravity. The healthcare professional knows the result will indicate the amount of:
- A. Solutes in the urine
- B. Bacteria in the urine
- C. pH level of the urine
- D. Glucose in the urine
Correct answer: A
Rationale: Specific gravity measures the concentration of solutes in the urine, reflecting the kidney's ability to concentrate or dilute urine. Choice B, bacteria in the urine, is incorrect because specific gravity does not measure bacterial presence. Choice C, pH level of the urine, is incorrect as it refers to the acidity or alkalinity of the urine, not its specific gravity. Choice D, glucose in the urine, is incorrect as specific gravity does not directly measure glucose levels in urine.
5. The nurse is planning care for a 12-year-old child with sickle cell disease in a vaso-occlusive crisis affecting the elbow. Which one of the following should be the priority?
- A. Limiting fluids
- B. Client-controlled analgesia
- C. Applying cold compresses to the elbow
- D. Performing passive range of motion exercises
Correct answer: B
Rationale: During a vaso-occlusive crisis in sickle cell disease, the priority intervention is effective pain management. Client-controlled analgesia allows the child to self-administer pain relief as needed, promoting comfort and reducing stress. Limiting fluids (choice A) is not appropriate in this scenario as hydration is essential to prevent complications. Cold compresses (choice C) may provide some comfort but do not address the underlying pain. Passive range of motion exercises (choice D) are contraindicated during a vaso-occlusive crisis due to the risk of further pain and tissue damage.
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