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. What should the nurse assess in an infant who has been diagnosed with hypertrophic pyloric stenosis?
- A. A history of diarrhea following each feeding
- B. Gastric pain evidenced by vigorous crying
- C. Poor appetite due to a poor sucking reflex
- D. An olive-shaped mass right of the midline
Correct answer: D
Rationale: The correct answer is D. In hypertrophic pyloric stenosis, a key assessment finding is an olive-shaped mass in the right upper quadrant of the abdomen, to the right of the midline. This mass is palpable and represents the hypertrophied pyloric muscle. Choices A, B, and C are incorrect because although they may be present in infants with feeding problems, the definitive assessment for hypertrophic pyloric stenosis is the presence of an olive-shaped mass on the right side of the abdomen, not a history of diarrhea, gastric pain, or poor appetite.
3. A client with Addison's disease started taking hydrocortisone in a divided daily dose last week. It is most important for the nurse to monitor which serum laboratory value?
- A. Osmolarity
- B. Glucose
- C. Albumin
- D. Platelets
Correct answer: B
Rationale: The correct answer is B: Glucose. Hydrocortisone can lead to increased blood glucose levels, so monitoring glucose is crucial to assess for hyperglycemia, a common side effect of corticosteroid therapy. Monitoring osmolarity (choice A) is not typically indicated in this scenario. Albumin (choice C) and platelets (choice D) are not directly affected by hydrocortisone therapy and are not the primary focus of monitoring in this case.
4. When speaking to young parents, the nurse states that lead poisoning is one of the most common preventable health problems affecting children. What condition occurs when the level of lead ingested exceeds the amount that can be absorbed by the bone?
- A. Malnutrition
- B. Anemia
- C. Bone pain
- D. Diarrhea
Correct answer: B
Rationale: The correct answer is B: Anemia. When the amount of lead ingested exceeds the amount that can be absorbed by the bone, it leads to anemia. Malnutrition (Choice A) is a state of inadequate nutrition, not directly related to lead poisoning. Bone pain (Choice C) is a symptom of lead poisoning due to its effects on bones but not directly related to lead ingestion exceeding absorption. Diarrhea (Choice D) is not a direct consequence of lead ingestion exceeding absorption by bones.
5. Which signs/symptoms would be considered classical signs of meningeal irritation?
- A. Positive Kernig sign, diarrhea, and headache
- B. Negative Brudzinski sign, positive Kernig sign, and irritability
- C. Positive Brudzinski sign, positive Kernig sign, and photophobia
- D. Negative Kernig sign, vomiting, and fever
Correct answer: C
Rationale: The correct answer is C: Positive Brudzinski sign, positive Kernig sign, and photophobia are considered classical signs of meningeal irritation. The Kernig sign is positive when the leg is extended at the knee and then raised, resulting in pain and resistance. The Brudzinski sign is positive when flexing the neck causes flexion of the hips and knees due to meningeal irritation. Photophobia, or sensitivity to light, is a common symptom due to meningeal inflammation. Choices A, B, and D are incorrect because they do not include the classic signs associated with meningeal irritation.
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