ATI RN
ATI Pathophysiology Final Exam
1. A patient is to be administered an immunization. The serum contains aluminum phosphate. What route is most appropriate to administer this immunization?
- A. Intramuscularly
- B. Subcutaneously
- C. Intravenously
- D. Orally
Correct answer: A
Rationale: The most appropriate route to administer an immunization containing aluminum phosphate is intramuscularly. Aluminum phosphate is commonly used as an adjuvant in vaccines to enhance the immune response. Intramuscular administration allows for the vaccine to be delivered into the muscle tissue, where it can be effectively absorbed by the body's immune cells. Subcutaneous administration is not ideal for vaccines containing aluminum phosphate, as it may not elicit the desired immune response. Intravenous administration is typically reserved for specific medications or situations that require rapid absorption into the bloodstream. Oral administration is not suitable for vaccines containing aluminum phosphate as they would be degraded in the gastrointestinal tract.
2. What action is specific to hormonal contraceptives and should be taught to this woman?
- A. The cervical mucus is altered to prevent sperm penetration.
- B. The release of follicle-stimulating hormone is increased to block fertility.
- C. The maturation of the endometrial lining is activated by the contraceptive.
- D. The pituitary gland increases the synthesis and release of luteinizing hormone.
Correct answer: A
Rationale: The correct action specific to hormonal contraceptives that should be taught to the woman is that they alter cervical mucus to prevent sperm penetration. This mechanism helps in preventing pregnancy by reducing the chances of sperm reaching the egg. Choices B, C, and D are incorrect. Choice B is inaccurate as hormonal contraceptives work by inhibiting ovulation rather than increasing follicle-stimulating hormone release. Choice C is incorrect as hormonal contraceptives do not activate the maturation of the endometrial lining; instead, they modify it to prevent implantation. Choice D is also incorrect as hormonal contraceptives do not stimulate the pituitary gland to increase luteinizing hormone synthesis and release.
3. A 75-year-old male presents with chest pain on exertion. The chest pain is most likely due to hypoxic injury secondary to:
- A. Malnutrition
- B. Free radicals
- C. Ischemia
- D. Chemical toxicity
Correct answer: C
Rationale: The correct answer is C: Ischemia. In this scenario, the 75-year-old male experiences chest pain on exertion, which is indicative of angina. Angina is primarily caused by reduced blood flow to the heart muscle, leading to hypoxic injury. This condition is known as ischemia. Options A, B, and D are incorrect. Malnutrition does not typically cause chest pain related to exertion. Free radicals and chemical toxicity are not common causes of chest pain in the context described. Therefore, the most likely cause of chest pain in this case is ischemia due to reduced blood flow.
4. 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.
5. 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.
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