GE LOGIQ A100, Technical Publication

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OB Report Page
187
LOGIQ
t α
100 User Manual
2211157–100 Rev 0
Tokyo University Report Page (cont’d)
EDC (Pregnancy Origin)
Depending on the parameter chosen for pregnancy origin
the Expected Date of Confinement is calculated as
described below.
EDC (LMP): If LMP is selected in Pregnancy Origin, the
field EDC (LMP) appears. Estimated Date of
Confinement is the Estimated Delivery Date computed
from the date of the first day of the last Menstrual Period
according to the formula:
EDC (LMP) = {LMP} + {40 weeks or 41 weeks as
selected in setup}
EDC (DGA): If DGA is selected in Pregnancy Origin, it
appears as EDC by DGA. Estimated Date of
Confinement is computed using the formula:
EDC (DGA) = {Exam date} – {DGA} + {40 weeks or 41
weeks as selected in setup}
EDC (BBT): If BBT is selected in Pregnancy Origin, it
appears as EDC by BBT. Estimated Date of Confinement
is calculated from BBT using the formula:
EDC (BBT) = {BBT} + {38 weeks or 39 weeks as selected
in setup}
EDC (CGA): Estimated Date of Confinement computed
from Composite Gestational Age, and the formula is:
EDC (CGA) = {Exam date} – {CGA} + {40 weeks or 41
weeks as selected in setup}