Property:AnswerEExp
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Lithium is a mood stabilizer used to treat bipolar disorder. Its mechanism of action is poorly understood. Administration of lithium is associated with the development of hypothyroidism, which is responsible for the menstrual irregularities, constipation, and fatigue in this patient. Further questioning might demonstrate other manifestations of hypothyroidism, such as cold intolerance, hair loss, and reduced concentration capacity. +
While the perforated ulcer may require surgical or endoscopic treatment, emergency gastroduodenoscopy is not the best initial diagnostic test in this patient. +
The histology above demonstrates the presence of Reed-Sternberg cells which is pathognomonic to Hodgkin's lymphoma. +
Ferruginous bodies are one type of asbestos bodies that are characterized by clear central fibers surrounded by a golden brown iron-protein complex. They are associated with occupational asbestos exposure. +
Rest alone will not treat Dressler's syndrome. Pharmacological therapy with aspirin is the recommended drug of choice. +
'''Incorrect:''' The history of the patient suggests that cardiac surgery is the inciting factor for the pericarditis in this case. +
Pulsus parvus et tardus, more commonly known as a "slow-rising" or "anacrotic" pulse, is a sign where, upon palpation, the pulse is weak/small (parvus), and late (tardus) relative to contraction of the heart. This finding is seen in aortic stenosis. +
Cardiac troponins are often ordered to evaluate for myocardial infarction in any patient with chest pain, however an EKG gives a quicker result, and is the best answer for this scenario where pericarditis is suspected. +
The history of MI suggests that myocardial infarction is the inciting factor for the pericarditis, and it is not idiopathic. +
Pulsus parvus et tardus, more commonly known as a "slow-rising" or "anacrotic" pulse, is a sign where, upon palpation, the pulse is weak/small (parvus), and late (tardus) relative to contraction of the heart. This finding is seen in aortic stenosis. +
Cardiac troponins are often ordered to evaluate for myocardial infarction in any patient with chest pain, however an EKG gives a quicker result, and is the best answer for this scenario where pericarditis is suspected. +