Collect SST, plain red top or green lithium heparin, 1 mL serum/plasma required. If collecting a SST, after 30 minutes of clotting, centrifuge and send. If collecting a red top or green top, centrifuge, transfer the serum/plasma to a screw top transport tube and indicate sample type on the tube before sending.
Do not collect oxalate, EDTA or citrate plasma.
Electrochemiluminescence immunoassay (ECLIA)
Room temp: 15 days, Refrigerated: 15 days, Frozen: 15 days
Used to establish the presence of a functioning corpus luteum or luteal cell function; confirm basal body temperature measurements for the occurrence of ovulation; obtain an indication of the day of ovulation; evaluate the functional state of the corpus luteum in infertility patients; assess placental function during pregnancy; ovarian function test.