- May 30, 2009
I NEED HELP ON THE ABBREVIATIONS LIKE (CK,MYO,Trop,CREAT,Retic,HgbA1C,PTT,RPR,OBC,HCG QT,HC...

Partial thromboplastin time (PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if you have bleeding or clotting problems.
APTT; PTT; Activated partial thromboplastin time