HESI LPN
HESI Mental Health Practice Exam
1. An adolescent who attempted suicide with a drug overdose arrives in the emergency department with an empty 30-tablet bottle of acetaminophen (Tylenol). Which action should the nurse implement?
- A. Administer acetylcysteine (Mucomyst).
- B. Monitor cardiac rhythm for flat T waves.
- C. Check both serum AST and ALT levels.
- D. Prepare to administer Syrup of Ipecac.
Correct answer: A
Rationale: The correct action for the nurse to implement is to administer acetylcysteine (Mucomyst). Acetylcysteine is the antidote for acetaminophen overdose and should be administered promptly to prevent liver damage. Monitoring cardiac rhythm for flat T waves (Choice B) is not specific to acetaminophen overdose and is more related to cardiac conditions. Checking serum AST and ALT levels (Choice C) may be done later but is not the initial priority in this situation. Similarly, preparing to administer Syrup of Ipecac (Choice D) is not recommended anymore in cases of overdose as it can cause more harm.
2. A client with schizophrenia is being treated with clozapine (Clozaril). What laboratory test is most important for the nurse to monitor?
- A. Liver function tests
- B. Kidney function tests
- C. White blood cell count
- D. Blood glucose levels
Correct answer: C
Rationale: The correct answer is C: White blood cell count. Clozapine can lead to agranulocytosis, a severe drop in white blood cells, which can be life-threatening. Monitoring the white blood cell count is crucial to detect this condition early. Choices A, B, and D are incorrect because while liver and kidney function tests are important in monitoring other aspects of health, the most critical concern with clozapine therapy is the risk of agranulocytosis, making monitoring white blood cell count the priority.
3. A female client is admitted to the psychiatric unit with a diagnosis of anorexia nervosa. What is the priority nursing intervention?
- A. Monitor the client's vital signs regularly.
- B. Encourage the client to participate in group therapy.
- C. Offer the client frequent, high-calorie snacks.
- D. Weigh the client daily at the same time.
Correct answer: D
Rationale: The correct answer is to weigh the client daily at the same time. Daily weights are crucial in monitoring the client's nutritional status and guiding treatment for weight restoration in anorexia nervosa. Monitoring vital signs is important but weighing the client daily takes precedence in this situation. Encouraging group therapy and offering high-calorie snacks are important aspects of treatment but do not take priority over monitoring the client's weight.
4. Physical examination of a 6-year-old reveals several bite marks in various locations on his body. X-ray examination reveals healed fractures of the ribs. The mother tells the nurse that her child is always having accidents. Which initial response by the nurse is most appropriate?
- A. I need to inform the healthcare provider about your child's tendency to be accident-prone.
- B. Tell me more specifically about your child's accidents.
- C. I must report these injuries to the authorities because they do not seem accidental.
- D. Boys this age always seem to require more supervision and can be quite accident-prone.
Correct answer: B
Rationale: (B) seeks more information in a non-threatening manner to gather additional details about the child's accidents. This response allows the nurse to explore the situation further without making assumptions. (A) fails to address the concerning findings and instead focuses on informing the healthcare provider. (C) jumps to conclusions without gathering more information, potentially causing unnecessary distress to the family. (D) dismisses the seriousness of the situation by attributing the injuries to common accidents for boys, missing the opportunity to delve deeper into the issue.
5. A client with schizophrenia is being treated with clozapine (Clozaril). What is the most important laboratory test for the LPN/LVN to monitor?
- A. White blood cell count.
- B. Liver function tests.
- C. Blood glucose levels.
- D. Platelet count.
Correct answer: A
Rationale: The most important laboratory test for an LPN/LVN to monitor for a client with schizophrenia being treated with clozapine is the white blood cell count. Clozapine treatment is associated with a risk of agranulocytosis, a severe drop in white blood cells, which can be life-threatening. Monitoring the white blood cell count regularly helps to detect this adverse effect early. Liver function tests (Choice B) are important to monitor with some antipsychotic medications but are not the most crucial for clozapine. Blood glucose levels (Choice C) are more relevant for monitoring in clients on medications like atypical antipsychotics that can cause metabolic side effects. Platelet count (Choice D) is not typically affected by clozapine therapy and is not the most important test to monitor in this case.
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