OB/GYN Student Study Guide

Sensitized: mom has developed antibodies against baby ( check a titer: if over 1:8, do fetal survey on US and amniocentesis at 16 – 20 w to measure the OD 450 with the spectrophotometer (you know, that machine you used in general biology) reading for the LILEY CURVE. Weeks gestation. Note: the delta OD 450 is prognostic, not the titeritself ................
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