USMLE

NBME Sample Questions and Answers Latest Updated 2022 RSV is an RNA virus that enters the cell via a fusion protein Correct Answer-(which is the target of the prophylactic monoclonal antibody drug Palivizumab) Gram-positive rods in a diabetic foot wound (or a World War I soldier fighting in a trench) means Correct Answer-means Clostridium perfringens (the causative organism of gas gangrene). Crepitus means gas in the tissues, which is produced as a byproduct of its highly virulent alpha to...

THIRD EDITION CASE FILES® Psychiatry Eugene C. Toy, MD The John S. Dunn, Senior Academic Chair and Program Director The Methodist Hospital Ob/Gyn Residency Program Houston, Texas Vice Chair of Academic Affairs Department of Obstetrics and Gynecology The Methodist Hospital Houston, Texas Associate Clinical Professor and Clerkship Director Department of Obstetrics and Gynecology University of Texas Medical School at Houston Houston, Texas Associate Clinical Professor Weill Cornell C...

What are the two major microtubular motor proteins? Which does anterograde axonal transport, which does retrograde axonal transport? - Kinesin, Dynein Kinesin: Anterograde Dynein: Retrograde` What do you think, immunologically speaking, when you see someone with recurrent Neisseria infections? - Inability to form the membrane attack (MAC) complex this is a common complement deficiency What is the defect in Chronic Granulomatous disease? What is the pathophysiology? - NADPH Oxidase defici...

Diphenhydramine toxicity - sedation, antimuscarinic, anti alpha adrenergic DNA from three vesicles on a person infected with HSV, when treated with restriction enzymes will show what pattern of bands? - all bands will be identical pt has fever, hx of several pyelonephritis, urosepsis, anemia, painful renal masses that are yellow with necrotic center, epitheloid with partially clear and granular to foamy cells, bacterial culture positive for proteus - xanthogranulomatous pyelonephritis kid ...

NBME CBSE REAL EXAM 200 QUESTIONS AND ANSWERS LATEST (usmle step 1)MEDICAL EXAMINATION

NBME CBSE REAL EXAM 200 QUESTIONS AND ANSWERS LATEST (usmle step 1)MEDICAL EXAMINATION / VERIFIED BY EXPERTS 70yo M dies in a motor vehicle collision. Was undergoing evaluation for occult blood in the stool. Photo of transverse colon shown. Dx? - ANSWER- Tubular adenoma 38yo M with 1-week hx of watery, itchy eyes and a runny nose. Physical shows inflamed nasal mucosa. No congestion in lower lung. Pharmacotherapy? - ANSWER- Loratadine 16yo girl with 3-day hx of fever, ...

cause of GDM, when onset due to human placental lactogen (hPL) and insulinase; last 1/2 preg describe White classif DM A-D A1= GDM diet; A2=GDM insulin; B: onset <20 duration <10; C: 10-19, duration 10-19; D: <10, >20, vascular cxns describe DM White classif F, R, T, H F=nephropathy, R=prolifer retino, T=renal tx, H=aterioscler heart dz 2 MC cxns of IDM, most specific MC are NTD and cardiac, most specific is caudal regression risk factors GDM, 3 MC, 4 others MC: FMH, obesity, &gt...

Abdominal pain, ascites, hepatomegaly Achilles tendon xanthoma Adrenal hemorrhage, hypotension, DIC Arachnodactyly, lens dislocation, aortic dissection, hyperflexible joints Athlete with polycythemia Back pain, fever, night sweats, weight loss Bilateral hilar adenopathy, uveitis Blue sclera Bluish line on gingiva Bone pain, bone enlargement, arthritis Bounding pulses, diastolic heart murmur, head bobbing Café-au-lait spots, Lisch nodules (iris hamartoma)

What changes a cytosine into a uracil? Which base nucleotides contain an extra amino group? Which base nucleotide has an extra methyl group? What are the purines?Pyrimidines? How does Methyltrexate work on DNA? If a sample of DNA has 10% G, how much is the T %? Which DNA has a higher melting point?Why?Define melting point. What is the charge of Histones?What 2 AA are histones abundant in? what causes chromatin to be tightly packaged?Name of this type of chromatin? (active or inactive)If ...

Syphilis histopathology description Most clinical manifestation of syphilis are due to: What is the clinical manifestation of Syphilis in the Primary Phase? What are some Secondary syphilis manifestations? What is Condylomata lata? What are the clinical manifestations of Tertiary Syphilis? Papillomatous epidermal hyperplasia with cytoplasmic vacuolization. What serotypes of HPV cause warts? Septal PANNICULITIS with multinucleated giant cells Description of Kaposi sarcoma (histo): What ...