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 nurse receives a report about a client receiving IV fluids infusing at 125 mL/hr but notes they have only received 80 mL over the last 2 hours. What should the nurse do first?

Correct answer: A

Rationale: The correct first action for the nurse to take is to check the IV tubing for obstruction. This step is crucial in ensuring that the IV fluids are flowing properly and that there are no blockages preventing the correct infusion rate. Increasing the flow rate (Choice B) without confirming the tubing's status could lead to potential complications if there is indeed an obstruction. Changing the IV site (Choice C) is not the priority in this situation unless there are specific clinical indications. Notifying the physician (Choice D) can be done after checking the tubing for obstruction, as the physician may need to be informed depending on the findings.

3. A client has a new cast on the left arm, and the nurse is assessing the client. Which of the following findings should the nurse report to the provider immediately?

Correct answer: C

Rationale: The correct answer is C: Pain with passive movement. Pain with passive movement in a client with a new cast can indicate compartment syndrome, a serious condition where pressure builds up within the muscles, nerves, and blood vessels of the affected limb, potentially leading to tissue damage. Immediate reporting is crucial to prevent further complications. Increased warmth in the affected arm could be a normal inflammatory response to the injury and casting process. Itching under the cast is common and can be managed without immediate concern. Drainage on the cast may be expected initially after casting due to residual moisture from the setting process, but ongoing or excessive drainage should be monitored and reported if persistent.

4. When assessing a client’s heart sounds, the nurse hears a scratching sound during both systole and diastole. These sounds become more distinct when the nurse has the client sit up and lean forward. The nurse should document the presence of a:

Correct answer: A

Rationale: A pericardial friction rub is characterized by a scratching sound that occurs during both systole and diastole. It becomes more distinct when the client is sitting up and leaning forward. This indicates an inflammation of the pericardial sac rubbing against the layers of the heart. Heart murmurs (choice B) are abnormal heart sounds caused by turbulent blood flow, not by friction like in a pericardial rub. S3 and S4 heart sounds (choices C and D) are additional heart sounds related to abnormal ventricular filling, not to pericardial friction rubs.

5. A client is being taught about the use of an incentive spirometer. Which statement by the client indicates effective teaching?

Correct answer: A

Rationale: The correct answer is A because using the spirometer every hour while awake is an effective way to prevent respiratory complications. This frequency helps in maintaining lung function and preventing atelectasis. Choice B is incorrect because blowing too hard into the spirometer can lead to hyperventilation and dizziness, making choice C also incorrect. Choice D is wrong as waiting to use the spirometer only when feeling short of breath may not provide optimal lung expansion and can lead to respiratory issues.

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