
Mixing study reveals whether high aPTT level needs treatment
DEAR DR. ROACH: I recently had a surgery, and prior to the surgery, my doctor ordered some routine blood tests. My aPTT level was high, but the PT level was normal. The doctor said it was probably nothing, and the surgery went fine. But, when I went back for my annual checkup, he rechecked it, and it’s still high. Do I need to worry? -- B.W.