NBME 28 || with Error-free Solutions.

what fibers innervate thyropharyngeus and cricopharyngeus of inferior pharyngeal constrictor muscles. correct answers motor fibers of vagus nerve defect in zenker diverticulum which antibiotics are synergistic with aminoglycosides correct answers penicillins monobactam unilateral flank pain, radiates to groin, hypoactive bowel sounds ? correct answers ureteral calculi where are most diverticula found correct answers sigmoid colon ( smallest diameter) embryonic germ layer of lining of respiratory tract, GI tract, biliary system, GU tract , vagina, middle ear ? correct answers endoderm ex: type 2 pneumocytes cancers that metastasize to liver correct answers Cancer Sometimes Penetrates Benign Liver Colon, Stomach, Pancreas, Breast, Lung gross: multifocal masses and varying sizes why is a baby born to a diabetic mother hypoglycemic when born ? correct answers baby increases insulin production , decreases gluconeogenesis -- hypoglycemia inhibits synthesis of surfactant -- NRDS mixed lymphocyte rxn for HLA types correct answers must match all 6 loci of HLA recipient T cells will attack HLA type that they don't have exercise induced asthma correct answers exertional dyspnea, relieved by rest, tachycardic, tachypnec, wheezes, prolonged wheezing, decreased tactilefremitus reversible obstruction of bronchi secondary to hyperreactive airway heterozygote frequency for females if lesch nyhan syndrome (x-linked recessive) is only seen in 1/100,000 males correct answers q=1/100,000 p+q=1 ... 1/ (1/100.000)= 0.99999 2pq... (2) (0.99999) (1/100,000)= 1/50,000 which test helps rule disease out correct answers sensitivity - good for screening low FN