USLME Exam With Questions And 100% Correct Answers

USLME Exam With Questions And 100% Correct Answers Causes of QT prolongation - Answer Meds Macrolides/Quinolones Azoles Antiemetics Antipsychotics Methadone/Oxy Class Ia/III antiarrythmics Electrolyte -low Mg -low K -low Ca Empyema drainage - Answer fibrinolytic agent (tPA) + DNase to diss olve fibrin and improve chest drainage Whipple disease + biopsy findings - Answer gram pos rod bacteria causes malabsorption and arthralgia biopsy - foamy macrophages and positive period-acid Schiff stain diabetic gastroparesis pathophysiology - Answer dysregulation of enteric neurons causes delayed gastric emptying + N/V of undigested food fluids to give in shock - Answer 0.9% NaCl or Lactated Ringer sol CKD ABG results - Answer anion gap metabolic acidosis w respiratory compens ation radiotherapy effects in prostate cancer - Answer fibrosis + stri ctures --> obstructive uropathy dobutamine moa - Answer stimulates beta1-adrenergic receptors ca using increased contractility and heart rate, with little effect on beta2 or alpha receptors esophageal squamous cell carcinoma - Answer keratin pearls on h istology dysphagia + weight loss Polyarteritis nodosa - Answer vasculitis in small to medium- size vesse ls (except the lung) affecting young males 30% HBsAg-positive P-ANCA and autoantibodies against myeloperoxidase Gleason score - Answer well differentiated = low score acute liver injury signs - Answer prolonged PTT and elevated AST normal aging effects on men's sexual health - Answer decreased fr ee and total testosterone & increased hepatic synthesis of sex-hormone bind ing globulin mesothelioma histopathology - Answer spindle/flattened cells stain positive for cytokeratins/calretinin Sheehan's syndrome - Answer postpartum ischemic necrosis of pi tuitary Digoxin toxicity - Answer GI effects (anorexia, n/v, abdominal pain) CNS effects (fatigue, weakness, diplopia, blurred vision, yellow-green o r white halos around objects) Renal clearanc e - impaired in elderly Trazodone - Answer sedative antidepressant SE: priapism Drug induced neutropenia - Answer side effect of antithyroi d meds causes esophageal ulcers and fever VIPoma - Answer malignant pancreatic islet cell tumor -> watery diar rhea, hypokalemia, achlorhydria treat w octreotide (somatostatin) to block VIP over secretion Sarcoidosis granulomas - Answer macrophages surrounded by lympho cytes with high CD4+/CD8+ ratio of T cells PAD symptomatic management - Answer cilostazol - vasodilator and platel et aggregate inhibitor via phosphodiesterase inhibition hypothyroidism marker - Answer TSH rises before T4 drops = more sensitive test