All Subjects Medicine Surgery Pathology Anatomy Pharmacology Social & Preventive Medicine Microbiology Gynaecology & Obstetrics Dental Physiology Biochemistry Pediatrics
Showing 188245 questions
Sort:
166222 Medicine

A 32 year old female presented with anxiety, palpitations, and diarrhea. Lab studies show elevated T4, TSH levels are low & increased long acting thyroid stimulating antibody titres. A diagnosis of Graves disease is made. But then the patient came to emergency with sudden onset of acute chest pain. CT angiography which is useful in making the diagnosis of pulmonary embolism, can be potentially dangerous in this patient because:

AIodinated contrast exposure in patients with Graves disease may exacerbate hypehyroidism.
BPulmonary embolism is exceedingly rare in Graves disease.
CRadiation exposure in patients with hypehyroidism is associated with increased risk of subsequent malignancy.
DTachycardia with Graves disease limits the image quality of CT angiography and will not allow accurate assessment of pulmonary embolism.
Medicine
View Explanation →
166224 Surgery

A 20 year old male has presented with repeated episodes of hematemesis. There is no history of jaundice or liver decompensation. On examination the significant findings include splenomegaly (8 cms below costal margin), and presence of esophageal varices. There is no ascites or peptic ulceration. The liver function tests are normal. The most likely diagnosis is-

AExtahepatic portal venous obstruction
BNon cirrhotic portal fibrosis
CCirrhosis
DHepatic venous outflow tract obstruction
Surgery
View Explanation →
166228 Pathology

A 22-year-old primigravida notes absent fetal movement for 2 days. The fetus is delivered stillborn at 19 weeks’ gestation. The macerated fetus shows marked hydrops fetalis and a large posterior cystic hygroma of the neck. At autopsy, internal anomalies include aortic coarctation and a horseshoe kidney. Which of the following karyotypes is most likely to be present in cells obtained from this fetus?

A45, X
B47, XX, +18
C47, XX, +21
D47, XYY
Pathology
View Explanation →