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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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ezymnE A satsdn in ofr opePahlphsosi ,2A niurtng hposlispdopih ni eht llce meneamrb oint nahridcoiac d.saci romF etrh,e yemznE B dtanss fro gxcasleeyoyonC CX(O), weilh enzEmy C ssndat for aoseenL-yi5pxg (O5)-L. 5-OL esuodpcr H,ETP5E- hcwih is tnrued into eerinuot.slek nLeusteieokr yalp a uboeld relo ni tnvese leik msha,ta aeubcse tyeh saecu bntoconcsnhorciroit en(se in thsi atipe)tn nda by itgcna as mahicelc tntasaatctr ofr afmrnatmoily e,lscl wheos tiicytav illw esclo eht wrayia etrfhru. By kconglbi OXC m(pauyrsble itwh na A)SDIN, ew eleav orme fo het brtssueta niiarhcdcoa adci rof 5-OLX to tuayelmlit oevnrtc toni tuner.eesklio Tsih is hte biass orf tpannmr,ota-hnlateiairssi- icwhh si fteyneurlq ectsasdiao htwi ansal pys.olp tm'Seasr( )it.dra

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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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