USMLE Forum - Largest USMLE Community - Give heparin to person but no change in PT or PTT

Give heparin to person but no change in PT or PTT what is
>deficient?

antithrombinIII

Protein C or FACTOR V-LEIDEN ?

wats d ans

what is the role of K defgiciency here ..any role..I am thinking loud?

hep inhibits ATIII mainly--->common pathway blocked---> elevated PT/APTT....

how about that Leiden factor V

leiden factor 5 mutation

leiden def cause thromboses.... spon abortions, CVA.. mainly hereditary

if ATIII is already deficient, why there is not change of PT and PTT

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