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Retired NBME 23 Answers

nbme23/Block 1/Question#18 (reveal difficulty score)
A 15-year-old boy has nasal polyps and ...
Enzyme B ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: biochem pathways 35

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submitted by โˆ—sajaqua1(607)
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mEyenz A nassdt in ofr ploPohsihpesa A2, nniutrg dpliopsophhis ni eht ellc memrnabe into nrahcoidica idasc. omFr ehert, ezyEmn B tasnsd rof Cnyoysceglexoa )XCO(, iwelh zmnyEe C sansdt for ny-xL5egoesaip -)(LO.5 -5OL drspecuo ETE,-5HP ihwhc is retndu tion euensroteikl. uoikeentsLre apyl a boduel lreo ni vetens klei ah,tsam asucebe ehyt cusae onrnhocbnctoicsitor ne(es ni stih aen)ittp and by icgtan sa almicehc asattctntar for aniymratlfom ,sclle hwsoe tytacivi lliw seocl hte riayaw f.hrertu yB ciobgnlk OCX mep(bryulas twih na SI)ADN, ew eealv mreo fo hte utbtrssea ohaccadiinr cida rfo O5-XL to lytalmueit nrcotev oitn ilereno.eskut shiT is the ssabi ofr pnnii-msnatt,rata-herlaiso hichw is ytqleuefrn adtiesscao iwth nlaas splypo. a'(retmSs .)raidt

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FA 2019 pg. 475 on aspirin - + NSAID that irreversibly inhibits both COX-1 and COX-1 by covalent acetylation--> decreased synthesis of TXA2 and PG. + S/E: gastric ulceration, tinnitus (CN8), allergic rxn (especially in patients with asthma or nasal polyps). chronic use can lead to AKI, AIN, GI bleeding.



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