+- USMLE Forum - Largest USMLE Community (https://www.usmleforum.com)
+-- Forum: USMLE Forum (https://www.usmleforum.com/forumdisplay.php?fid=1)
+--- Forum: Step 2 CK (https://www.usmleforum.com/forumdisplay.php?fid=3)
+--- Thread: nbme9 - mydream (/showthread.php?tid=193671)
nbme9 - mydream - ArchivalUser - 06-11-2007
9. A 57-year-old man has been hospitalized for 2
days for treatment
of unstable angina pectoris. He is currently
receiving intravenous
heparin and undergoing evaluation for coronary artery
bypass grafting.
His blood pressure is 160/90 mm Hg, pulse is 88/min,
and respirations are
16/min. Laboratory studies show:
Platelet count 90,000/mm3
Prothrombin time 12 sec (INR=1.1)
Partial thromboplastin time 35 sec
Which of the following is the most likely cause of
these findings?
A
) Excessive platelet destruction
B
) Factor VIII deficiency
C
) Inadequate platelet production
D
) Uncontrolled activation of coagulation and
fibrinolytic cascades
E
) Vitamin K deficiency
0 - ArchivalUser - 06-11-2007
D) Uncontrolled activation of coagulation and
fibrinolytic cascades......??????.... heparin....ptt prong
0 - ArchivalUser - 06-11-2007
HIT.....aaaaaaaa
0 - ArchivalUser - 06-11-2007
A...
0 - ArchivalUser - 06-11-2007
aaaaaaaaaaa.............. thrombocytopenia.........non immuno type of ( direct ) destruction of platelate .......
0 - ArchivalUser - 06-11-2007
a