Causes Of Differences In The Calculation Of Gestational Age From Ultrasound And Hpht?
Hello . I said yesterday the 24th month of the 12th ultrasound he said was still 5 Weeks whereas I usually control midwifery he said it was 9 Weeks based on HPHT. . That’s how to join the midwife’s contribution
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When is the first day of the last menstrual period? Remember, HPHT is the "first day" yes ma'am. Was your mother's menstrual period regular every month (at least in the last 6 menstrual cycles)?
Calculation of gestational age can be done in two ways, namely using calculations from HPHT and through an ultrasound examination. These two methods of calculation can give different results, but they will not last more than 2-3 weeks. If more than 3 weeks, several questions need to be asked:
1. Do you really remember the date of the LMP?
2. Is your menstruation regular in the last 6 menstrual cycles?
3. Who is the mother doing an ultrasound examination with? Considering the results of the ultrasound examination are very operator dependent, where the results are greatly influenced by the knowledge and experience of the operator.
Calculation of gestational age through an ultrasound examination performed by a trained and experienced obstetrician, is the most accurate if done early in pregnancy (ie a maximum age of 12 weeks' gestation). For this reason, mothers can re-do an ultrasound examination with a gynecologist, then immediately ask the doctor if there is a difference in gestational age of more than 3 weeks by calculating using HPHT (if the mother really remembers the date of HPHT and menstruation regularly in the last 6 cycles) . Both of these points are prerequisites so that the calculation of gestational age with HPHT can be trusted.
Meanwhile, mothers do not forget to regularly consume vitamin folic acid every day. Folic acid is needed for the development of the fetal nerve tube and prevention of anemia for pregnant women.
Thus hopefully useful.