HESI LPN
Medical Surgical Assignment Exam HESI
1. A client who is experiencing respiratory distress is admitted with respiratory acidosis. Which pathophysiological process supports the client’s respiratory acidosis?
- A. Low oxygen levels are present in the blood.
- B. High levels of carbon dioxide have accumulated in the blood.
- C. Increased bicarbonate levels are causing alkalosis.
- D. Respiratory rate is increased, causing hyperventilation.
Correct answer: B
Rationale: High levels of carbon dioxide in the blood lead to respiratory acidosis due to inadequate ventilation. The correct answer is B. In respiratory acidosis, the accumulation of carbon dioxide in the blood occurs due to inadequate exhalation, leading to acidosis. Choice A is incorrect as low oxygen levels are related to hypoxemia, not respiratory acidosis. Choice C is incorrect as increased bicarbonate levels would lead to alkalosis, not acidosis. Choice D is incorrect as an increased respiratory rate causing hyperventilation would actually help decrease carbon dioxide levels, not lead to respiratory acidosis.
2. In a disaster area, a nurse assesses an adult male with partial-thickness burns on his lower legs, approximately 10% of his lower body. Which color of triage tag should the nurse place on this client?
- A. Yellow.
- B. Black.
- C. Red.
- D. Green.
Correct answer: A
Rationale: A yellow triage tag should be placed on the client with partial-thickness burns covering 10% of his lower body. Yellow tags indicate delayed treatment, suitable for serious injuries that are not immediately life-threatening. Black tags are used for deceased individuals, red tags for immediate treatment of life-threatening injuries, and green tags for minor injuries.
3. Which dietary modification is most appropriate for a client with nephrotic syndrome?
- A. High protein, low sodium
- B. Low protein, high sodium
- C. High protein, high potassium
- D. Low protein, low sodium
Correct answer: D
Rationale: The most appropriate dietary modification for a client with nephrotic syndrome is a low protein, low sodium diet. This diet helps reduce the workload on the kidneys and manage edema, which are common issues in nephrotic syndrome. Choice A, high protein, low sodium, is not recommended because excessive protein intake can further strain the kidneys. Choice B, low protein, high sodium, is inappropriate as high sodium can worsen fluid retention and hypertension. Choice C, high protein, high potassium, is not ideal as high potassium levels can be problematic for individuals with kidney issues.
4. A client with type 1 diabetes mellitus is experiencing nausea and vomiting. What is the most important instruction the nurse should provide?
- A. Stop taking insulin until feeling better
- B. Increase fluid intake to prevent dehydration
- C. Consume high-carbohydrate foods only
- D. Check blood glucose levels frequently
Correct answer: D
Rationale: The correct answer is to instruct the client to check blood glucose levels frequently. During illness, such as nausea and vomiting, managing blood glucose levels is crucial in clients with type 1 diabetes mellitus. Monitoring blood glucose levels frequently helps in adjusting insulin doses appropriately, preventing complications like hyperglycemia or hypoglycemia. Choice A is incorrect because stopping insulin abruptly can lead to serious complications. Choice B is important but not the most critical in this scenario. Choice C is incorrect as high-carbohydrate foods may further affect blood glucose levels negatively.
5. How are type IV hypersensitivity reactions different from all other types (I, II, or III) of hypersensitivity reactions?
- A. They involve antigen-antibody complexes.
- B. They are mediated by T cells and do not involve antibodies.
- C. They result in immediate allergic reactions.
- D. They are the least severe form of hypersensitivity.
Correct answer: B
Rationale: Type IV hypersensitivity reactions are mediated by T cells and cytokine release, leading to delayed reactions, unlike types I, II, and III, which involve antibodies. Choice A is incorrect because type IV reactions do not involve antigen-antibody complexes. Choice C is incorrect as type IV reactions do not result in immediate allergic reactions. Choice D is incorrect as type IV reactions are not the least severe form of hypersensitivity; in fact, they are known to cause significant tissue damage and inflammation.
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