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 USMLE Step 2 CK Forum USMLE Step 2 CK Discussion Forum: Let's talk about anything related to USMLE Step 2 CK exam

#1
04-08-2014
 USMLE Forums Addict Steps History: 1+CK+CS Posts: 198 Threads: 26 Thanked 175 Times in 79 Posts Reputation: 185
UW question

Do you think UW question 4713 is relevant?
My brain is refusing to work on that....

#2
04-08-2014
 USMLE Forums Addict Steps History: 1+CK+CS Posts: 171 Threads: 67 Thanked 20 Times in 18 Posts Reputation: 30

yes , it is a little hard , i read it twice and barely could understand it at that time , now i forgot everything , i need to re do it
 The above post was thanked by: vero (04-08-2014)
#3
04-08-2014
 USMLE Forums Guru Steps History: Step 1 Only Posts: 342 Threads: 47 Thanked 149 Times in 86 Posts Reputation: 159

well its kind of hard cause they explain with new formulas that we need to remember
i will try to explain i dont know how it will..so see
1)what is a PEAK pressure.. PEAK p=resistance pressure+Plateau p
increase peak pressure can be with a)ncrease/Normal compliance (also mean N PLATEAU P)and b)decrease compliance(same as increase PLATEAU pr)
2)what is a PLATEAU Pr.PLATEAU p=elastic p+PEEP..Normal Plateau as we know =0
3)lets remember what is compliance and elastic pressure from step 1
Elastic pr=Tidal Volume/Compliance..so elastic pr. inverse to compliance

mean...decrease COMPLIANCE=INCREASE ELASTIC P=INCREASE PEAK P

or COMPLIANCE INVERSE TO PEAK Pr.

4)ex.of increase compliance with normal or increase plateau=bronchospasm,mucus plug COPD
5)ex of decrease compliance with increase plateau=pneumothorax,PE,pneumonia,atelectasis...

HOPE THIS HELP

#4
06-05-2014
 USMLE Forums Guru Steps History: 1+CK+CS+3 Posts: 369 Threads: 3 Thanked 195 Times in 83 Posts Reputation: 205

Quote:
 Originally Posted by DrAGA well its kind of hard cause they explain with new formulas that we need to remember i will try to explain i dont know how it will..so see 1)what is a PEAK pressure.. PEAK p=resistance pressure+Plateau p increase peak pressure can be with a)ncrease/Normal compliance (also mean N PLATEAU P)and b)decrease compliance(same as increase PLATEAU pr) 2)what is a PLATEAU Pr.PLATEAU p=elastic p+PEEP..Normal Plateau as we know =0 3)lets remember what is compliance and elastic pressure from step 1 Elastic pr=Tidal Volume/Compliance..so elastic pr. inverse to compliance mean...decrease COMPLIANCE=INCREASE ELASTIC P=INCREASE PEAK P or COMPLIANCE INVERSE TO PEAK Pr. 4)ex.of increase compliance with normal or increase plateau=bronchospasm,mucus plug COPD 5)ex of decrease compliance with increase plateau=pneumothorax,PE,pneumonia,atelectasis... HOPE THIS HELP

Im still unable to get this question... Someone explain this please
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#5
06-05-2014
 USMLE Forums Scout Steps History: 1 + CK Posts: 41 Threads: 3 Thanked 5 Times in 4 Posts Reputation: 15
q

hi guys,
may sound irrelevant but can u please please post the answer of uw q 4838. I forgot to note it down.

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