q.2_____________? - sarim - Printable Version +- USMLE Forum - Largest USMLE Community (https://www.usmleforum.com) +-- Forum: USMLE Forum (https://www.usmleforum.com/forumdisplay.php?fid=1) +--- Forum: Step 1 (https://www.usmleforum.com/forumdisplay.php?fid=2) +--- Thread: q.2_____________? - sarim (/showthread.php?tid=616758) |
q.2_____________? - sarim - ArchivalUser - 09-25-2011 Heart rate response by "drug X' alone and when given pretreatment with the listed drugs: (Pretreatment with)........ ("Drug X" HR response) NONE.....................................Incr Mecamylamine....................... Incr Prazosin................................ Incr Atropin.................................. Incr Propronolol............................ NO change from normal HR Identify the "Drug X" A-Methoxamine B-Epinephrine C-Physostigmine D-Norepinephrine E-Acetylcholine 0 - ArchivalUser - 09-25-2011 Sarim,let m ethink,but probably tomorow.Good q.. A 0 - ArchivalUser - 09-25-2011 Hola mi amigo sarim…gracias por la pregunta.. I will go for DDD The drugs that that stimulate B1 receptors are Epi and Norepi (NE) NE produce at the beginning bradycadia but then there is a reflex tachycardia due to B1 receptors stimulation, if we give a beta blockers this reflex won’t be present. 0 - ArchivalUser - 09-25-2011 bb 0 - ArchivalUser - 09-25-2011 DDD 0 - ArchivalUser - 09-26-2011 Hola ariadna... como te va ? 0 - ArchivalUser - 09-26-2011 OK Ok the answer is "B" (plz try now one more time) source : kaplan LN pharma 0 - ArchivalUser - 09-26-2011 Thanks |