Protein s test

PROTEIN S TEST

DESCRIPTION – protein S helps blood clotting. A lack of this protein or a problem with the function of this protein may cause blood clots to form in veins. This test is also used to screen relatives of people who are known to have protein S deficiency. Sometimes, this test is done to find the cause of repeated miscarriages.

METHODOLOGY – electromagnetic mechanical clot detection

TURN AROUND TIME – 1-2 days

SPECIMEN REQUIERED –

COLLECT – Lt. blue (sodium citrate)

SPECIMEN PREPARATION – transfer 1.5 ml platelet poor plasma to transport tube

STORAGE/TRANSPORT TEMPERATURE – critical frozen

STABILITY – ambient: 4 hours; frozen: 3 months (-20 degrees C) and 6 months (-70 degrees C)

UNACCEPTABLE CONDITION – serum, EDTA plasma, clotted or hemolyzed specimens

SPECIAL INSTRUCTIONS – clinical history is mandatory