we report Collegen / EPI and ADP in sec with comments as:
Platelet disfunction detected by the PFA-100 may be acquired, inherited, or
induced by platelet inhibiting agents. Uremia may cause platelet disfunction.
Hematocrit < 35% causes prolonged closure time, and HCT < 20% causes significantclosure time. Studies show that significant increases in closure time when the
count of functionally normal platelets is reduced from 200,000/ml to 50,000/ml
with a constant hematocrit.
The following are expected patterns observed with the PFA-100 tests on normal
subjects and subjects with various disorders.
Reference Interval (sec)
Collagen/Epinephrine 95-185
Collagen/ADP 65-120
Normal ASA vWD Glanzmann's Thrombasthenia
Col/EPI Normal Abnormal Abnormal Abnormal
COL/ADP Normal Normal Abnormal Abnormal
I hope this will help u