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?
- A. Ointment
- B. Lotion
- C. Paste
- D. Gel
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. After administering pantoprazole to a client with gastroesophageal reflux disease (GERD), which statement by the client indicates to the nurse that the medication is producing the desired effect?
- A. After eating my meal, I did not experience any heartburn
- B. I have a great appetite and am feeling really hungry
- C. I should increase the amount of vitamin C in my diet
- D. While eating, I had no difficulty swallowing any of the foods
Correct answer: A
Rationale: The correct answer is A. Pantoprazole reduces stomach acid production, thus preventing the occurrence of heartburn after meals, which is a common symptom of GERD. Choice B is incorrect because an increased appetite and hunger are not indicators of the desired effect of pantoprazole. Choice C is unrelated to the medication's effect on GERD symptoms. Choice D is also incorrect because the absence of difficulty swallowing is not a specific indicator of pantoprazole's effectiveness in treating GERD.
3. Which of the following best describes the role of insulin in the body?
- A. Insulin helps break down glucose into energy for the body
- B. Insulin facilitates the movement of glucose into cells
- C. Insulin converts excess glucose into fat for storage
- D. Insulin increases the breakdown of protein into amino acids
Correct answer: B
Rationale: The correct answer is B: Insulin facilitates the movement of glucose into cells. Insulin is a hormone that helps regulate blood sugar levels by promoting the uptake of glucose from the bloodstream into cells, where it can be used for energy production. Choice A is incorrect because insulin doesn't break down glucose but rather helps cells take up glucose. Choice C is incorrect as insulin does not directly convert glucose into fat; excess glucose is stored as fat by other processes. Choice D is incorrect as insulin does not increase the breakdown of protein into amino acids; its primary role is in glucose metabolism.
4. Which of the following is the best method for confirming nasogastric tube placement?
- A. Auscultating over the stomach while injecting air
- B. Checking the pH of the aspirate
- C. Observing the patient’s response during feeding
- D. Measuring the external length of the tube
Correct answer: B
Rationale: Checking the pH of the aspirate is the most reliable method to confirm nasogastric tube placement as it provides direct evidence of the tube's location in the stomach. When the pH is acidic (pH < 5), it indicates that the tube is correctly placed in the stomach. Auscultating over the stomach while injecting air may not always be accurate, as the sound can be misleading due to various factors. Observing the patient’s response during feeding is not a definitive method for confirming tube placement, as it can be influenced by other factors. Measuring the external length of the tube does not ensure correct placement within the GI tract and can be affected by external factors like patient anatomy.
5. The nurse assigns a UAP to assist with the personal care of a client experiencing an acute exacerbation of multiple sclerosis. Which instruction should the nurse provide the UAP?
- A. Assist the client with a hot bath
- B. Encourage self-care but allow rest periods
- C. Face the client directly when speaking
- D. Keep the head of the bed elevated at all times
Correct answer: B
Rationale: The correct instruction for the UAP to provide when assisting a client experiencing an acute exacerbation of multiple sclerosis is to encourage self-care but allow rest periods. Clients with multiple sclerosis often experience fatigue, so promoting self-care activities while ensuring they have adequate rest periods is crucial for symptom management and maintaining independence. Choice A is incorrect as hot baths can potentially exacerbate symptoms in clients with multiple sclerosis. Choice C is unrelated to the client's care needs during an acute exacerbation of multiple sclerosis. Choice D is not a priority instruction in this situation and may not directly impact the client's immediate care needs.
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