Usmle exam step 3 Study guides, Class notes & Summaries

BIOCHEMISTRY USMLE STEP 1 EXAM QUESTIONS WITH CORRECT ANSWERS Achondroplasia involves what defect? -ANS_ Cell-signlaling defect of fibroblast growth factor (FGF) receptor 3 The splicesome exsises introns or exons? -ANS_ Introns What chemotherap agent inhibits thymidylate synthase (therefore decreasing pyrmidine synthesis for DNA)? -ANS_ 5-fluorouracil

USMLE STEP 3 REVIEW EXAM 2024 WITH 100% CORRECT ANSWERS Tx of IBS - correct answer Best initial therapy: *Fiber* If fiber fails: Antispasmodic/anticholinergic agents. First line: 1. Dicyclomine 2. Hyoscyamine Secondline: 1. TCA's (amitriptyline) CCS, What test should you order for IBS? - correct answer 1. Stool: stool guiac, leukocytes, cultures, ova & parasites. 2. Colonoscopy 3. Abdominal CT scan Umbilical hernia in newborns is associated with? - correct answer Congenit...

NBME CBSE REAL EXAM 200 QUESTIONS AND ANSWERS LATEST (usmle step 1)MEDICAL EXAMINATION 70yo M dies in a motor vehicle collision. Was undergoing evaluation for occult blood in the stool. Photo of transverse colon shown. Dx? Tubular adenoma or villous polyp. GI blood loss suggests a risk for malignancy 38yo M truck driver with 1-week hx of watery, itchy eyes and a runny nose. Physical shows inflamed nasal mucosa. No congestion in lower lung. Pharmacotherapy? Loratadine--> less sedatin...

USMLE STEP 3 REVIEW EXAM 2024 WITH 100% CORRECT ANSWERS Tx of IBS - correct answer Best initial therapy: *Fiber* Antispasmodic/Anticholingergics: dicyclomine, Hyoscyamine Second line- TCAs (amitryptiline) CCS, What test should you order for IBS? - correct answer 1. Stool: stool guiac, leukocytes, cultures, ova & parasites. 2. Colonoscopy 3. Abdominal CT scan Umbilical hernia in newborns is associated with? - correct answer Congenital hypothyroidism Screen with TSH (you should sc...

USMLE STEP 3 EXAM 2024 WITH 100% CORRECT ANSWERS Pseudogout associations - correct answer hemochromatosis, hyperparathyroidism, acromegaly, hypothyroidism Gout crystals - correct answer negatively birefringent needles Pseudogout crystals - correct answer positively birefringent needles Vasculitis associated with chronic Hep B - correct answer polyarteritis nodosa Vasculitis associated with chronic Hep C - correct answer cryoglobulinemia Best blood test for polyarteritis nodosa...

USMLE STEP 3 PT. 2 EXAM 2024 WITH 100% CORRECT ANSWERS what is the best initial thing to do in a patient with a hyperosmolar hyperglycemic state - correct answer aggressive volume resuscitation - they are generally severely volume depleted then IV insulin *avoid management of hyperkalemia because these guys usually have a total body potassium deficit what can occur in patients with poorly controlled diabetes - correct answer hyperosmolar hyperglycemic state (HHS) or DKA describe H...

USMLE STEP 3 REVIEW EXAM 2024 WITH 100% CORRECT ANSWERS Antimitochondrial antibodies? - correct answer Primary biliary cirrhosis Antismooth muscle antibody? - correct answer Primary sclerosing cholangitis What is the best initial test for primary sclerosing cholangitis? Most accurate? - correct answer Initial: elevated ALP, *elevated bilirubin* Best: ERCP (beading of biliary system) Others: antismooth muscle antibody, ANCA positive Treatment for both primary biliary cirrhosis and p...

USMLE Step 3 exam 2024 When would you order a head CT with or without contrast? - correct answer With - looks for abscesses or intracranial masses WITHOUT - looks for acute bleeding which appears white. Contrast also appears white and can obscure bleeding. Like in intracranial hemorrhage Parents bring teen daughter to ED for cutting herself. No intent to commit suicide per daughter. Does she require hospitalization while you work her up for safety reasons? - correct answer NO. There ...

NBME CBSE REAL EXAM QUESTIONS AND ANSWERS LATEST (usmle step 2)MEDICAL EXAMINATION// GRADED A+ 18yo man Crohn disease 1-day hx severe abdominal pain and intermittent bloody diarrhea. Temperature 38 C (100.4 F), pulse 98, respirations 18. Physical exam: draining anal fistula. Treatment with antibiotics and prednisone over next 3 weeks recovers. Mechanism of pharmacotherapy is suppression of which? NBME CBSE REAL EXAM QUESTIONS AND ANSWERS LATEST (usmle step 2)MEDICAL EXAMINATION//...