HESI LPN
HESI Fundamentals Study Guide
1. A nurse is preparing to administer multiple medications to a client who has an enteral feeding tube. Which of the following actions should the nurse plan to take?
- A. Dissolve each medication in 5 mL of sterile water.
- B. Draw up each medication separately in the syringe.
- C. Push the syringe plunger gently if feeling resistance.
- D. Flush the tube with 15 mL of sterile water.
Correct answer: D
Rationale: The correct action the nurse should take when administering multiple medications to a client with an enteral feeding tube is to flush the tube with 15-30 mL of sterile water before and between medications, and 30-60 mL after the last medication. This helps prevent clogging and ensures each medication is delivered effectively. Choice A is incorrect as medications should not be dissolved in water for administration through an enteral feeding tube. Choice B is incorrect because each medication should be drawn up and administered separately to prevent any potential interactions. Choice C is incorrect as resistance while pushing the plunger may indicate a problem that needs to be addressed before continuing with the administration.
2. A client with acute hemorrhagic anemia is to receive four units of packed RBCs (red blood cells) as rapidly as possible. Which intervention is most important for the LPN/LVN to implement?
- A. Obtain the pre-transfusion hemoglobin level.
- B. Prime the tubing and set up the blood pump.
- C. Monitor vital signs every 15 minutes for the first hour.
- D. Ensure the accuracy of the blood type match.
Correct answer: D
Rationale: Ensuring the accuracy of the blood type match is crucial to prevent transfusion reactions. The LPN/LVN must prioritize this step to avoid adverse outcomes. Obtaining the pre-transfusion hemoglobin level (Option A) is important but not as critical as ensuring blood type compatibility. Priming the tubing and setting up the blood pump (Option B) and monitoring vital signs every 15 minutes (Option C) are essential steps in the transfusion process, but the primary concern should be preventing transfusion reactions by verifying blood type compatibility.
3. Seconal 0.1 gram PRN at bedtime is prescribed to a client for rest. The scored tablets are labeled 1.5 grains per tablet. How many tablets should the LPN/LVN plan to administer?
- A. 0.5 tablet
- B. 1 tablet
- C. 1.5 tablets
- D. 2 tablets
Correct answer: B
Rationale: To calculate the number of tablets needed, convert the prescribed dose of Seconal from grams to grains. Since 1 gram is equal to approximately 15.43 grains, 0.1 gram is roughly 1.543 grains. Given that each tablet contains 1.5 grains, administering 1 tablet (which is slightly more than the 1.543 grains needed) provides the correct dose of Seconal. Therefore, the LPN/LVN should plan to administer 1 tablet. Choice A (0.5 tablet) is incorrect as it would provide less than the required dose. Choice C (1.5 tablets) and Choice D (2 tablets) are incorrect as they would exceed the necessary dosage.
4. A client is experiencing a severe sore throat, pain when swallowing, and swollen lymph nodes. Which of the following stages of infection is the client likely in?
- A. Prodromal
- B. Incubation
- C. Convalescence
- D. Illness
Correct answer: D
Rationale: The client in this scenario is in the illness stage of infection. During this stage, the individual exhibits specific symptoms such as a severe sore throat, pain when swallowing, and swollen lymph nodes. The prodromal stage precedes the appearance of specific symptoms and is characterized by nonspecific signs. The incubation period occurs between exposure to the pathogen and the onset of symptoms. Convalescence is the recovery period following the resolution of the infection. Therefore, the correct answer is 'D: Illness' as it aligns with the symptoms presented by the client.
5. The healthcare provider retrieves hydromorphone 4mg/mL from the Pyxis MedStation, an automated dispensing system, for a client who is receiving hydromorphone 3 mg IM every 6 hours PRN for severe pain. How many mL should the healthcare provider administer to the client?
- A. 0.75 mL
- B. 1 mL
- C. 0.8 mL
- D. 1.2 mL
Correct answer: C
Rationale: The correct dosage calculation is to divide the prescribed dose by the concentration of the medication to determine the volume needed. In this case, 3 mg (prescribed dose) divided by 4 mg/mL (concentration) equals 0.75 mL. Therefore, the healthcare provider should administer 0.75 mL of hydromorphone to the client. Choices A, B, and D are incorrect because they do not accurately calculate the required volume based on the prescription and concentration provided.
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