Obstetric Wheel (Pregnancy Calculator) x 1

A pregnancy calculator wheel developed to provide an efficient and quick means of counting the weeks and days of a pregnancy from conception through to probable birth date for GP's, midwives and health visitors. The calculator wheel calculates the expected duration of a pregnancy and probable birth date based on dates of the mother to be's menstrual cycle and suggested date of conception. By lining up dates on the inner disc with an outer 12 month calendar an accurate date of birth can be calculated. • Pocket sized pregnancy disc: 110mm diameter • LMP/EDD/DD calculation • Quality precise print for assured accuracy • Accuracy of +/- one day • Durable wipe clean plastic construction