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. What is the function of the epiglottis during swallowing?

Correct answer: A

Rationale: The epiglottis is a flap of tissue that closes over the trachea during swallowing to prevent food and liquids from entering the airway. Choice A is correct because the primary function of the epiglottis is to act as a lid over the trachea, ensuring that food goes down the esophagus and not into the windpipe. Choices B, C, and D are incorrect as they do not describe the specific role of the epiglottis during swallowing.

3. A nurse is assisting in the admission of a young adult female Korean exchange student with acute abdominal pain. When asked about her sexual activity, she looks away. What should the nurse do?

Correct answer: D

Rationale: Observing the client's response to a different question can help gauge her comfort level and understanding, which is essential in culturally sensitive care. By watching her response to a different question, the nurse can assess if the discomfort is related to the specific question or a broader issue. Omitting the question may result in missing crucial information. Asking about an interpreter assumes that the language barrier is the only issue, which may not be the case. Rewording the question may not address the underlying discomfort and could still lead to misinterpretation.

4. What is the most common cause of acute pancreatitis?

Correct answer: A

Rationale: The correct answer is A: Gallstones. Gallstones are the most common cause of acute pancreatitis as they obstruct the pancreatic duct, leading to inflammation. While alcohol abuse (Choice B) can also cause pancreatitis, gallstones are more prevalent. Hypertriglyceridemia (Choice C) is a less common cause of acute pancreatitis compared to gallstones. Infection (Choice D) is not a primary cause of acute pancreatitis; gallstones are the leading etiology.

5. While caring for a client with an AV fistula in the left forearm, the nurse observed a palpable buzzing sensation over the fistula. What action should the nurse take?

Correct answer: C

Rationale: The correct answer is C: Document that the fistula is intact. The palpable buzzing sensation (known as a thrill) over the AV fistula indicates proper functioning. It is essential for the nurse to document this finding to ensure ongoing monitoring of the fistula's status. Choices A, B, and D are incorrect. Choice A is incorrect because there is no indication to loosen the dressing. Choice B is incorrect as a bounding pulse is not associated with the palpable buzzing sensation of a thrill. Choice D is incorrect as applying pressure over the site is not necessary for this situation.

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