ATI RN
ATI Pathophysiology Exam 1
1. What causes type I diabetes?
- A. Overproduction of insulin from the beta cells of the pancreas
- B. Destruction of the beta cells within the pancreas, resulting in an inability to produce insulin
- C. Loss of insulin receptors on the target cells, resulting in insulin resistance
- D. A pituitary tumor in the brain, resulting in increased antidiuretic hormone production
Correct answer: B
Rationale: Type I diabetes is caused by the destruction of the beta cells in the pancreas, leading to an inability to produce insulin. This results in a lack of insulin, leading to hyperglycemia. Choice A is incorrect as type I diabetes is characterized by a deficiency of insulin production, not overproduction. Choice C describes the pathophysiology of type 2 diabetes, where insulin receptors become less responsive to insulin. Choice D is unrelated to type I diabetes as it describes a pituitary tumor causing increased antidiuretic hormone production.
2. A client with heart failure is experiencing pulmonary edema. Which intervention should be prioritized?
- A. Administer diuretics to reduce fluid overload.
- B. Position the client in high-Fowler's position.
- C. Administer oxygen therapy to improve oxygenation.
- D. Restrict fluid intake to prevent further fluid overload.
Correct answer: C
Rationale: In a client experiencing pulmonary edema due to heart failure, the priority intervention is to administer oxygen therapy to improve oxygenation. This helps in increasing the oxygen levels in the blood, thereby improving tissue perfusion and reducing the workload on the heart. Positioning the client in high-Fowler's position can also aid in improving oxygenation, but administering oxygen therapy directly addresses the immediate need for increased oxygen levels. Administering diuretics to reduce fluid overload and restricting fluid intake are important interventions in heart failure management, but in the acute situation of pulmonary edema, oxygen therapy takes precedence to ensure adequate oxygen supply to vital organs.
3. Which of the following is a clinical manifestation of hyperthyroidism?
- A. Tachycardia
- B. Constipation
- C. Weight gain
- D. Fatigue
Correct answer: A
Rationale: The correct answer is A: Tachycardia. Tachycardia, which is an increased heart rate, is a classic clinical manifestation of hyperthyroidism. In hyperthyroidism, there is an excess production of thyroid hormones, leading to an increased metabolic rate. This increased metabolism can cause symptoms such as a rapid heart rate. Choices B, C, and D are incorrect because constipation, weight gain, and fatigue are more commonly associated with hypothyroidism, where there is a deficiency of thyroid hormones leading to a slower metabolic rate.
4. During a flu shot clinic, one of the questions the student nurse asks relates to whether the client has a history of Guillain-Barré syndrome. The client asks, 'What is that?' How should the nursing student reply?
- A. A type of paralysis that affects movement on both sides of the body. It may even involve the respiratory muscles.
- B. Swelling of your arm where you got your flu shot and maybe your eyes and lips had some swelling as well.
- C. A degenerative disease where you have trouble walking without the help of a cane or walker.
- D. Influenza-like illness where you had fever and chills for 2 to 3 days after your last flu shot.
Correct answer: A
Rationale: The correct answer is A because Guillain-Barré syndrome is an acute immune-mediated polyneuropathy that can lead to paralysis affecting movement on both sides of the body, and in severe cases, involving the respiratory muscles. Choice B is incorrect as it describes local swelling, not the systemic effects of Guillain-Barré syndrome. Choice C is incorrect as it describes a degenerative disease affecting mobility, not an acute immune-mediated condition like Guillain-Barré syndrome. Choice D is incorrect as it describes flu-like symptoms following a flu shot, which is not the same as Guillain-Barré syndrome.
5. A patient is prescribed zanamivir (Relenza) to treat influenza B. The patient has a history of asthma. For which of the following symptoms should the nurse assess?
- A. Bradycardia
- B. Pneumonia
- C. Bronchospasm
- D. Pulmonary embolism
Correct answer: C
Rationale: The correct answer is C: Bronchospasm. Zanamivir (Relenza) is an inhaled medication used to treat influenza by reducing the severity and duration of symptoms. Patients with a history of asthma are at risk of bronchospasm as a potential side effect of zanamivir. Assessing for bronchospasm is crucial in this case to ensure the patient's safety and well-being. Choices A, B, and D are incorrect. Bradycardia, pneumonia, and pulmonary embolism are not commonly associated with zanamivir use in the treatment of influenza B, especially in a patient with a history of asthma.
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