a client is to receive 10 meq of kcl diluted in 250 ml of normal saline over 4 hours at what rate should the lpnlvn set the clients intravenous infusi
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Nursing Elites

HESI LPN

HESI Fundamental Practice Exam

1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the LPN/LVN set the client's intravenous infusion pump?

Correct answer: B

Rationale: To calculate the correct rate of infusion, divide the total volume by the total time: 250 ml / 4 hours = 62.5 ml/hour, which is rounded up to 63 ml/hour. This rate ensures the proper administration of the KCl over the 4-hour period. Choice A (13 ml/hour) is incorrect as it does not match the calculated rate. Choices C (80 ml/hour) and D (125 ml/hour) are also incorrect as they do not correspond to the calculated rate needed for the specified time frame.

2. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?

Correct answer: B

Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.

3. A client who has a new prescription for warfarin (Coumadin) is receiving discharge instructions. Which statement indicates the client understands the teaching?

Correct answer: C

Rationale: The correct answer is C: 'I should use a soft-bristled toothbrush while taking this medication.' Using a soft-bristled toothbrush is crucial as it helps prevent bleeding gums, which is a potential side effect of warfarin therapy. Option A about taking warfarin at the same time every day is a good practice but does not directly relate to preventing side effects. Option B suggesting an increase in green leafy vegetables can interfere with warfarin's anticoagulant effects due to their vitamin K content. Option D advising to avoid alcohol is generally recommended but is not directly related to the specific side effects of warfarin.

4. The nurse notices that the mother of a 9-year-old Vietnamese child always looks at the floor when she talks to the nurse. What action should the LPN take?

Correct answer: B

Rationale: In this scenario, the LPN should continue asking the mother questions about the child. The mother's behavior of looking at the floor may be a cultural practice, such as avoiding direct eye contact, which should be respected. By maintaining the conversation with the mother, the nurse acknowledges and respects her communication style, fostering trust and open dialogue. Option A is not the best choice as it may disregard the cultural context and the importance of the mother's input. Option C is unnecessary as the LPN can effectively handle the situation. Option D could be perceived as insensitive and may disrupt the rapport between the nurse and the mother.

5. The healthcare professional is assessing a client with a history of rheumatoid arthritis. Which of the following assessment findings would be most concerning?

Correct answer: C

Rationale: In a client with rheumatoid arthritis, the presence of fever is most concerning because it may indicate an infection or systemic involvement, necessitating immediate attention. Morning stiffness and joint deformities are common manifestations of rheumatoid arthritis itself and are expected findings in these clients. Weight loss can occur in rheumatoid arthritis due to various factors such as decreased appetite or systemic inflammation, but it is not as acutely concerning as fever, which may signal a more urgent issue.

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