ATI RN
ATI Pathophysiology Exam 2
1. A client on an acute medicine unit of a hospital with a diagnosis of small bowel obstruction is reporting intense, diffuse pain in her abdomen. Which physiologic phenomenon is most likely contributing to her complaint?
- A. Somatic pain resulting from pressure on the parietal peritoneum
- B. Referred pain from her small bowel
- C. Visceral pain resulting from distension and ischemia
- D. Neuropathic pain resulting from autonomic dysfunction
Correct answer: C
Rationale: Visceral pain is associated with distension, ischemia, and inflammation of internal organs. In the case of a small bowel obstruction, the intense, diffuse pain reported by the client is likely due to the distension and ischemia of the small bowel. Somatic pain (Choice A) would be more localized and sharp, typically arising from the parietal peritoneum. Referred pain (Choice B) is pain perceived at a site distant from the actual pathology. Neuropathic pain (Choice D) involves dysfunction or damage to the nervous system and is not typically associated with the described physiologic phenomenon of distension and ischemia in the context of a small bowel obstruction.
2. A client with a history of rheumatic fever presents with signs of heart failure. What is the likely underlying cause?
- A. Infective endocarditis
- B. Coronary artery disease
- C. Mitral valve stenosis
- D. Aortic regurgitation
Correct answer: C
Rationale: The correct answer is C: Mitral valve stenosis. Rheumatic fever can lead to scarring and thickening of the heart valves, often affecting the mitral valve. This stenosis can impede blood flow from the left atrium to the left ventricle, eventually causing heart failure. Choice A, infective endocarditis, is an infection of the endocardium, the inner lining of the heart chambers and valves, and is not directly related to rheumatic fever. Choice B, coronary artery disease, involves the obstruction of coronary arteries supplying the heart muscle with blood, leading to ischemia and not typically associated with rheumatic fever. Choice D, aortic regurgitation, is the backflow of blood from the aorta to the left ventricle and is not a common consequence of rheumatic fever.
3. A newborn is diagnosed with congenital intrinsic factor deficiency. Which of the following types of anemia will the nurse see documented on the chart?
- A. Iron deficiency anemia
- B. Sideroblastic anemia
- C. Pernicious anemia
- D. Hemolytic anemia
Correct answer: C
Rationale: The correct answer is C, Pernicious anemia. Pernicious anemia is associated with a congenital intrinsic factor deficiency, leading to the impaired absorption of vitamin B12. Iron deficiency anemia (Choice A) is not directly related to intrinsic factor deficiency. Sideroblastic anemia (Choice B) is characterized by defective iron uptake by developing erythrocytes and is not linked to intrinsic factor deficiency. Hemolytic anemia (Choice D) involves the premature destruction of red blood cells and is not specifically associated with intrinsic factor deficiency.
4. When assessing for potential signs and symptoms of cryptococcosis in a patient with HIV being treated with Amphotericin B, the nurse should prioritize what assessment?
- A. Neurological assessment
- B. Functional assessment
- C. Nutritional assessment
- D. Cardiac assessment
Correct answer: A
Rationale: In a patient with cryptococcosis and HIV, neurological assessment should be prioritized because cryptococcosis commonly affects the central nervous system, leading to symptoms such as headache, confusion, and altered mental status. This assessment is crucial in monitoring for any neurological complications and guiding appropriate interventions. Functional assessment focuses on the patient's ability to perform activities of daily living and is not directly associated with cryptococcosis. Nutritional assessment is important for overall health but is not the priority when assessing for cryptococcosis. Cardiac assessment is not a priority in cryptococcosis as the primary manifestations are related to the central nervous system.
5. Which condition is characterized by a lack of antidiuretic hormone (ADH)?
- A. Diabetes mellitus
- B. Diabetes insipidus
- C. Cushing's disease
- D. Hyperthyroidism
Correct answer: B
Rationale: The correct answer is B, Diabetes insipidus. Diabetes insipidus is characterized by a lack of antidiuretic hormone (ADH), leading to excessive urination and thirst. Choice A, Diabetes mellitus, is a different condition characterized by high blood sugar levels. Choice C, Cushing's disease, is caused by prolonged exposure to high levels of cortisol. Choice D, Hyperthyroidism, involves an overactive thyroid gland producing excess thyroid hormones.
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