a dispersion consists of a solute dispersed through a dispersing vehicle which of the following dispersions is a liquid for topical application that c
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Nursing Elites

HESI LPN

HESI PN Exit Exam 2023

1. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?

Correct answer: B

Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.

2. A post-operative client is recovering from a total knee replacement and is prescribed patient-controlled analgesia (PCA). What is the primary advantage of PCA for managing post-operative pain?

Correct answer: A

Rationale: The primary advantage of PCA for managing post-operative pain is that it allows the client to control the administration of pain medication, leading to consistent pain control without overmedication. Choice B is incorrect as PCA does not eliminate the need for oral pain medication; it supplements it. Choice C is incorrect because while PCA can help reduce opioid consumption, it does not directly reduce the risk of opioid addiction. Choice D is incorrect as PCA actually requires close monitoring by nursing staff to ensure proper use and prevent complications.

3. At the end of a 12-hour shift, the PN observes the urine in a client's drainage bag as seen in the picture. Which action should the PN take next?

Correct answer: D

Rationale: Noting the white blood cell count is the most appropriate action in this situation. Changes in urine appearance could indicate infection, and assessing the white blood cell count helps in evaluating the possibility of infection. This is crucial for understanding the client's overall condition. The other options are not directly related to assessing infection based on urine appearance. Offering analgesics, checking glucose levels, or determining bladder distention may not address the underlying issue of a potential infection.

4. Which of the following is a primary intervention for a patient experiencing hypoglycemia?

Correct answer: C

Rationale: Giving 15 grams of a fast-acting carbohydrate, such as glucose tablets, is the primary intervention for hypoglycemia. This rapid-acting carbohydrate helps quickly raise blood sugar levels, providing immediate relief to the patient. Administering insulin (Choice A) would further lower blood sugar levels, exacerbating the hypoglycemia. Providing a complex carbohydrate meal (Choice B) would not act quickly enough to address the immediate low blood sugar issue. Encouraging the patient to exercise (Choice D) is inappropriate during hypoglycemia as it can further deplete glucose levels.

5. A 12-year-old child is receiving a blood transfusion via an infusion pump and begins to complain of 'itchy' skin 15 minutes after the unit of blood is started. The child appears flushed. What action should the nurse take first?

Correct answer: B

Rationale: Stopping the transfusion immediately is crucial when signs of a transfusion reaction, such as itching and flushing, occur. This action is taken to prevent further exposure to the potentially harmful transfused blood. Applying lotion to the skin, inspecting the infusion site, or obtaining vital signs can be important but are secondary to stopping the transfusion to ensure the safety of the child. Applying lotion may not address the underlying issue of a possible transfusion reaction. Inspecting the infusion site and obtaining vital signs can be done after stopping the transfusion, as patient safety is the top priority in this situation.

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