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NBME CBSE REAL EXAM/ NBME CBSE 200 QUESTIONS AND ANSWERS/ NBME CBSE LATEST / Review (Recent Exam)
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NBME CBSE REAL EXAM/ NBME CBSE 200 QUESTIONS AND ANSWERS/ NBME CBSE LATEST / Review (Recent Exam)
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NBME CBSE REAL EXAM/ NBME CBSE 200 QUESTIONS AND ANSWERS/ NBME CBSE LATEST 2023 -2024 / Review (Recent Exam) Chagas Disease ---------- Correct Answer -------- Caused by Trypanosoma cruzi parasite passed in the feces of Reduviidae/kissing bug Penetrates broken skin or intact mucous membranes forming a pseudocyst releasing inflammatory infiltrates into myocytes; stains with Giemsa & Wright Romana sign occurs when portal of entry is the conjunctiva or eyelid May resulting in: Enlarged heart - CHF, sudden cardiac arrest Enlarged esophagus - difficulty swallowing Enlarged colon - abdominal pain or constipation Treat with benznidazole or nifurtimox Monocytes ---------- Correct Answer -------- cell with half -moon shaped nucleus that participates in phagocytosis Chronic graft rejection ---------- Correct Answer -------- multifactorial but typically involves arteriosclerosis HLA-B27 ---------- Correct Answer -------- PAIR: Psoriasis Ankylosing spondylitis - chronic synovitis destroying cartilage typi cally in young men Inflammatory bowel dz - Crohn's & UC Reactive Arthritis - Reactive Arthritis ---------- Correct Answer -------- Arthritis as a reaction to a bacterial infection such as Campylobacter, Chlamydia, Salmonella, Shigella, or Ureaplasma. Associated with conjunctivitis & uveitis Gaucher (Type 1) ---------- Correct Answer -------- AR Lysosomal storage disease Accumulation of sphingolipid glucocerebroside Most common Wrinkled tissue paper I Cell disease ---------- Correct Answer -------- Failure of Golgi apparatus to phosphorylate mannose 6 -phosphate the marker to export enzymes to lysosomes resulting in accumulation of lysosomal enzymes in serum Nitroblue tetrazolium test ---------- Correct Answer -------- Aqualitative test to d etermine defects in NADPH oxidase Negative: CGD Positive: Acute Hepatitis, Mono CGD (chronic granulomatous disease) ---------- Correct Answer -------- inability to produce NADPH oxidase; susceptible to Cat + organisms; elevated neutrophils w/ normal T cel l Gp91 phox subunit: heme binding subunit of superoxide generating NADPH Treat with interferon gamma Clarithromycin (macrolide) ---------- Correct Answer -------- ADR of metallic taste & GI Codeine ---------- Correct Answer -------- ADR resp. depression, euphoria, & constipation Cyclobenzaprine ---------- Correct Answer -------- Structurally similar to TCAs w/ anticholinergic side effects used for relief of muscle spasms May exacerbate glaucoma Naproxen ---------- Correct Answer -------- ADR of GI & renal (in elderly) Timolol ---------- Correct Answer -------- Used in HTN & glaucoma; ADR of bradycardia & worsening asthma Bacterial vaginosis ---------- Correct Answer -------- Sloughed mucosal cells = clue cells Trichomoniasis ---------- Correct Answ er -------- Cilated, motile trophozoites w/ corkscrew -like motility Autism ---------- Correct Answer -------- Lack of eye contact, verbal communication, & separation anxiety; repetitious behavior Emphysema ---------- Correct Answer -------- Decreased FEV 1/FVC ratio, normal FVC; TLC, FRC, & RV increase Parathyroid hormone(PTH) vs phosphate in hypercalcemia ---------- Correct Answer -------- PTH: rapid & direct Phosphate: slow & indirect ANP: ---------- Correct Answer -------- Afib, Ch -1p, NPPA gene mutat ion causing binding interference, - decrease cGMP Failure of development of 3rd or 4th pharyngeal pouches ---------- Correct Answer -------- DiGeorge syndrome (CATCH 22): truncus arteriosus & agenesis of parathyroid glands May also be associated w/ failure of thymus to develop -> T lymphocytes w/ CD3 marker Huntington disease ---------- Correct Answer -------- PCR is the most common method to est. # of CAGs Both the coding & template strands bind the forward & reverse primers on 3' end Pyrmidine Dimers ---------- Correct Answer -------- BRAF gain of function mutation causing covalant thymine (or Cystine) bonds normally repaired thru NER in the G1 phase by endonuclease recognition then excision (DNA polymerase then fills; ligase then reseals) Xeroderma pig mentosum ---------- Correct Answer -------- Mutation of NER endonuclease from UV radiation disrupting DNA replication due to the oligonucleotides remaining damaged DNA Polymerase I ---------- Correct Answer -------- Removal of both leading & lagging RNA p rimers 5' to 3' (unique) Proofreading of mismatch nucleotides via 3' to 5' exonuclease & elongation of lagging strand 5' to 3' (universal) Topoisomerase ---------- Correct Answer -------- Enzyme that functions in DNA replication, helping to relieve strain in the double helix ahead of the replication fork. Teniposide ---------- Correct Answer -------- Topoisomerase II inhibitor acting in the S phase & G2 phase: S phase: prevents proper unwinding of supercoils & reannealing of DNA G phase: Permanent breaks in both strands of DNA preventing transcription & repair inducing cell cycle arrest Cytarabine ---------- Correct Answer -------- Antimetabolite inhibiting DNA polymerase, arresting cells solely in S phase Fluoroquinolones ( -floxacin) ---------- Correct Answer -------- Bactercidal: direct inhibition of topoisomerase 2 & 4 halting DNA replication as 1st line treatment of uncomplicated pyelonephritis; older for gram negative & aerobic, newer more broad spectrum Contraindicated in LQTS with ADR of torn achilles
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