HESI LPN
CAT Exam Practice
1. The client had gastric bypass surgery yesterday. Which intervention is most important for the nurse to implement during the first 24 postoperative hours?
- A. Insert an indwelling urinary catheter
- B. Monitor for the appearance of an incisional hernia
- C. Instruct the client to eat small frequent meals
- D. Measure hourly urinary output
Correct answer: D
Rationale: Monitoring hourly urinary output is crucial during the first 24 postoperative hours to assess kidney function, fluid balance, and early detection of complications like dehydration or inadequate kidney perfusion. Inserting an indwelling urinary catheter is not routinely necessary after gastric bypass surgery unless there are specific indications. Monitoring for an incisional hernia is important but not the highest priority in the immediate postoperative period. Instructing the client to eat small frequent meals is essential for long-term dietary management after gastric bypass surgery, but not the most critical intervention during the initial 24 hours.
2. The nurse is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant’s clinical picture?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory alkalosis
- D. Respiratory acidosis
Correct answer: B
Rationale: Pyloric stenosis often leads to metabolic alkalosis due to the loss of gastric acid from vomiting. Metabolic acidosis would not be expected in pyloric stenosis as there is no excessive acid accumulation. Respiratory alkalosis and respiratory acidosis are not typically associated with pyloric stenosis, making them incorrect choices.
3. A 13-year-old girl, diagnosed with diabetes mellitus Type 1 at the age of 9, is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of the ketoacidosis?
- A. Ate an extra peanut butter sandwich before gym class
- B. Incorrectly drew up and administered too much insulin
- C. Was not hungry, so she skipped eating lunch
- D. Has had a cold and ear infection for the past two days
Correct answer: B
Rationale: The correct answer is B. Incorrect insulin administration is a common cause of diabetic ketoacidosis. Administering too much insulin can lead to uncontrolled hyperglycemia, where the body starts breaking down fat for energy, resulting in the production of ketones. Choices A, C, and D are less likely to directly cause diabetic ketoacidosis. Eating an extra peanut butter sandwich, skipping lunch, or having a cold and ear infection would not directly lead to the metabolic derangements seen in diabetic ketoacidosis.
4. After learning that she has terminal pancreatic cancer, a female client becomes very angry and says to the nurse, 'God has abandoned me. What did I do to deserve this?' Based on this response, the nurse decides to include which nursing problem in the client’s plan of care?
- A. Ineffective coping
- B. Spiritual distress
- C. Acute pain
- D. Complicated grieving
Correct answer: B
Rationale: The client’s expression of feeling abandoned by God indicates spiritual distress, which is a significant issue that needs to be addressed in the plan of care. The individual is questioning their faith and seeking answers in a higher power, which aligns with spiritual distress. Choices A, C, and D are not as directly related to the client's current emotional and spiritual struggle. Ineffective coping may be a consequence of spiritual distress, acute pain is not the primary concern in this scenario, and complicated grieving is premature as the client is still processing the diagnosis and seeking meaning.
5. The nurse is conducting intake interviews of children at a city clinic. Which child is most susceptible to contracting lead poisoning?
- A. An adolescent who works part-time in a paint factory
- B. A 2-year-old who plays on aging outdoor playground equipment
- C. A 10-year-old who has Type 1 diabetes mellitus
- D. An 8-year-old who lives in a housing project
Correct answer: B
Rationale: Children playing on aging playground equipment are at higher risk of lead poisoning due to potential exposure from old paint. This is because deteriorating paint on older playground equipment may contain lead, which can be ingested by young children. Choices A, C, and D do not directly involve potential exposure to lead paint, making them less susceptible to lead poisoning compared to a child playing on aging playground equipment.
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