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Kaplan Qbank USMLE



Author5 Posts
  #1

Factor ix is present in the serum along with:

a) factor 2 b) factor 10 c) fibrinogen.


Likely protective mechanism in the respiratory tract:

a) narrowing of the airways distally
b)mucosal immunity
c) clara cells


  #2

Factor IX is a Vit K Dependent protein,It is an independent protein doesnt have to be present with any other protein but if we r talking abt Activated Fator IX then the answer wud be Factor VII

Clara Cells


___________________
FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."

  #3

1........clara cells
the other option mucosal immunity.....might also be correct...as it is protects resp tract even before clara cells come to picture....

it is basically mucosal CLEARENCE.....that must be the difference.

2.....i will go with Factor II, of course same reason....vit K dependent....

let me know what is the answer...smiling face

  #4

Extensive homology is found between FIX and the other vitamin K–dependent proteins (procoagulants factor VII [FVII], factor X [FX], factor II [FII] and anticoagulant proteins C and S), especially in the prepro sequence and the Gla regions.

For that reason i was confused with the answer cos Both F II & F X r Vit K Dependent


___________________
FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."

  #5

sorry no definitive answer, from step1







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