ATI RN
WGU Pathophysiology Final Exam
1. A 9-year-old girl has a diffuse collection of symptoms that are indicative of deficits in endocrine and autonomic nervous system control. She also suffers from persistent fluid and electrolyte imbalances. On which aspect of the nervous system listed below would her health care providers focus their diagnostic efforts?
- A. The thalamus
- B. The pituitary
- C. The hypothalamus
- D. The midbrain
Correct answer: C
Rationale: The correct answer is C: The hypothalamus. The hypothalamus plays a central role in regulating endocrine and autonomic functions, including fluid and electrolyte balance. In this case, the girl's symptoms of deficits in endocrine and autonomic nervous system control, along with fluid and electrolyte imbalances, point towards dysfunction in the hypothalamus. Choices A, B, and D are incorrect because the thalamus is mainly involved in sensory relay, the pituitary gland regulates various hormones but is controlled by the hypothalamus, and the midbrain is responsible for motor control and arousal, not endocrine or autonomic functions.
2. A client in the emergency department has Benzodiazepine toxicity due to an overdose. Which of the following actions is the nurse's priority?
- A. Administer flumazenil.
- B. Identify the client's level of orientation.
- C. Infuse IV fluids.
- D. Prepare the client for gastric lavage.
Correct answer: B
Rationale: In a situation where a client presents with Benzodiazepine toxicity, the priority action for the nurse is to assess the client. By identifying the client's level of orientation, the nurse can gather crucial information about the client's mental status, which is essential for determining the appropriate care and interventions needed. Administering flumazenil is used to reverse the effects of benzodiazepines but should be based on a comprehensive assessment. Infusing IV fluids and preparing for gastric lavage may be necessary interventions but should follow a thorough assessment of the client's condition to ensure proper prioritization of care.
3. A client with emphysema is being cared for by a nurse. Which of the following findings should the nurse not expect to assess in this client?
- A. Dyspnea
- B. Bradycardia
- C. Barrel chest
- D. Clubbing of the fingers
Correct answer: Bradycardia
Rationale: Emphysema is a chronic lung condition characterized by shortness of breath (dyspnea), a barrel-shaped chest due to hyperinflation of the lungs (barrel chest), and clubbing of the fingers (enlargement of fingertips). Bradycardia (slow heart rate) is not typically associated with emphysema. In emphysema, the primary focus is on respiratory complications rather than cardiac issues.
4. A client has a new prescription for Lovastatin. Which of the following instructions should the nurse include?
- A. Take this medication on an empty stomach.
- B. Take this medication in the morning.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: The correct instruction for taking Lovastatin is to take it at bedtime. Cholesterol production in the liver is highest at night, so taking Lovastatin at bedtime aligns with the body's natural rhythm and maximizes its effectiveness.
5. What is a classic symptom assessed in clients with lupus?
- A. Butterfly rash
- B. Chvostek’s sign
- C. Ovid’s sign
- D. Heberden’s nodes
Correct answer: Butterfly rash
Rationale:
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