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Pathology Practice MCQs

Browse 15,526 high-yield clinical questions in Pathology. Includes detailed explanations, options, and topic tags.

#1593 Environment & Nutritional Pathology

A 26-year-old woman with a 6-month history of depression accompanied by active suicidal ideation ingests 35 g of acetaminophen. She quickly experiences nausea and vomiting. Within 1 day, she becomes progressively obtunded. On physical examination, her temperature is 36.9deg C, pulse is 75/min, respirations are 15/min, and blood pressure is 100/65 mm Hg. She is treated with N-acetylcysteine. Depletion of which of the following is most likely to accentuate her organ damage?

#1598 Blood

Children 6 to 10 years old in the same community are observed by the local physician to be doing poorly in school, which has been attributed to behavioral problems. Their parents state that these children have poor appetites, complain of nausea, and have frequent headaches. On physical examination, they have decreased sensation to touch over the lower extremities. They exhibit loss of fine motor control of movement and have a slightly ataxic gait. A representative CBC shows hemoglobin of 11.8 g/dL, hematocrit of 35.2%, MCV of 82 mm3, platelet count of 282,300/ mm3, and WBC count of 4745/ mm3. Examination of the peripheral blood smear shows basophilic stippling of the RBCs. Excessive chronic ingestion of which of the following substances is most likely to explain these findings?

#1600 Respiratory Distress Syndrome

A 16-year-old boy is rushed to the emergency room after sustaining a stab wound to the chest during a fight. Physical examination reveals a 1-cm entry wound at the right 5th intercostal space in the midclavicular line. His temperature is 37degC (98.6degF), respirations are 35 per minute and blood pressure is 90/50 mm Hg. A chest X-ray shows air in the right pleural space. Which of the following pulmonary conditions is the expected complication of pneumothorax arising in this patient?

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