ATI RN
Pathophysiology Practice Exam
1. An immunology nurse is caring for a patient. While planning care, which principle will the nurse remember? The primary role of IgA1 is to prevent infections in the:
- A. Blood
- B. Kidneys
- C. Lungs
- D. Mucous membranes
Correct answer: A
Rationale: The correct answer is A: Blood. IgA1 is mainly found in the blood and plays a crucial role in preventing infections by neutralizing pathogens. While IgA1 can be present in other body areas, its primary function is associated with preventing infections in the blood. Choices B, C, and D are incorrect as IgA1 is not primarily associated with the kidneys, lungs, or mucous membranes.
2. A 10-year-old male presents to his primary care provider reporting wheezing and difficulty breathing. History reveals that both of the child's parents suffer from allergies. Which of the following terms would be used to classify the child?
- A. Desensitized
- B. Atopic
- C. Hyperactive
- D. Autoimmune
Correct answer: B
Rationale: In this case, the correct term to classify the child is 'Atopic.' Atopic individuals have a genetic predisposition to developing allergic conditions, as seen in this patient with a family history of allergies. 'Desensitized' refers to reduced sensitivity to an allergen, which is not the case here. 'Hyperactive' relates to an exaggerated response, and 'Autoimmune' involves the immune system attacking its own cells, neither of which accurately describes the child's classification based on the provided history.
3. What aspect of this woman's current health status would contraindicate the use of oral contraceptives?
- A. The woman has a diagnosis of type 2 diabetes.
- B. The woman has asthma and uses inhaled corticosteroids and bronchodilators.
- C. The woman has a family history of breast cancer.
- D. The woman takes an antiplatelet medication for coronary artery disease.
Correct answer: A
Rationale: The correct answer is A. Women with type 2 diabetes are at higher risk of developing cardiovascular complications. Oral contraceptives further increase this risk due to their potential effects on blood pressure, lipid metabolism, and clotting factors. Choice B is incorrect as inhaled corticosteroids and bronchodilators do not contraindicate the use of oral contraceptives. Choice C is incorrect as a family history of breast cancer does not directly contraindicate the use of oral contraceptives. Choice D is also incorrect as taking an antiplatelet medication for coronary artery disease does not necessarily contraindicate the use of oral contraceptives.
4. A patient being treated for tuberculosis is determined to be drug resistant. Which of the following medications will the patient be resistant to in the treatment of tuberculosis?
- A. Isoniazid (INH) and rifampin
- B. Carbamazepine (Tegretol) and phenytoin (Dilantin)
- C. Dextroamphetamine (Dexedrine) and doxapram (Dopram)
- D. Propranolol (Inderal) and sotalol (Betapace)
Correct answer: A
Rationale: In the treatment of tuberculosis, drug resistance commonly develops against medications like Isoniazid (INH) and rifampin. These two drugs are key components of the standard anti-tuberculosis treatment regimen. Choices B, C, and D are unrelated medications that are not used in the treatment of tuberculosis. Carbamazepine and phenytoin are anticonvulsants, dextroamphetamine is a stimulant, and propranolol and sotalol are used for cardiovascular conditions.
5. A 50-year-old woman has had a relapse of her multiple sclerosis (MS) after several years of being symptom-free. Which of the following factors is most likely to have contributed to her relapse?
- A. Emotional stress
- B. Dietary indiscretion
- C. Physical overexertion
- D. Adequate rest and relaxation
Correct answer: C
Rationale: The correct answer is C: Physical overexertion. In individuals with multiple sclerosis (MS), physical overexertion can exacerbate symptoms and contribute to a relapse. It is important for individuals with MS to balance physical activity to avoid triggering symptom reoccurrence. Choices A, B, and D are less likely to have directly contributed to the relapse. Emotional stress and dietary indiscretion may play a role in exacerbating symptoms in some individuals, but physical overexertion is more commonly associated with MS relapses. Adequate rest and relaxation are important for overall well-being but are not typically linked to MS relapses.
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