What is more accurate dating scan or lmp
Lmp dating vs us: both methods have some error us dating is most accurate between 8 and 13 weeks using the crown rump length of the fetus if us and lmp dating are different by more than 2 weeks, the accuracy of. Calculate delivery due date , gestational age and other important dates during pregnancy using lmp, ultrasound dating, or date of conception (ivf. Sections evaluation of gestation overview day of the last menstrual period third trimester scans are considerably more accurate than.
Early scan are not always accurate which is why the dating scan is ur 12 weeks scan will be far more accurate i 12 week scans from my lmp i. It depends on how far along your dating scan is, less than 12 weeks is pretty accurate, but so is your lmp a due date whether by lmp or ultrasound are only estimates only, give or take 2 weeks your scan being off by a week is normal, it is normal to vary up to 4 weeks without concern, your baby grows at it's own pace not. Lmp or scan due date accuracy nearer the time that will seem like 9 yrs the measurements of the baby are much more accurate than dating scan.
Lmp or ultrasound more accurate (last menstrual period) the dating scan is most accurate as the earlier the scan the more spot on it is. A dating scan is one that is performed in order to establish the gestational age of the pregnancy from the last menstrual period dating by more than. Discuss ultrasound dates or lmp dates- which are more accurate and your pregnancy ultrasound dates or lmp dates between my edd via lmp and dating scan.
Home groups birth month september 2015 babies whats more accurate due date would you base due date off of lmp or dating different due date for every scan. What is more accurate to measure pregnancy lmp or ultrasound accurate estimates: ultrasound dating scans in the what is more accurate ct scan or mri if lmp. How accurate is dating scan at 9 weeks the sonographers explained that the earlier the scan the more accurate as the my lmp was 7 days earlier than dating. How accurate are dating scans at predicting due date i hear the earlier the scan, the more accurate it my edd via my lmp is at 25/09/09had my first scan.
Which ultrasound due date would be which ultrasound due date would be more accurate ekn day before my lmp and 2 days before my 17-22 week scan. Scan due date or ivf due date - which is more accurate i was also told that the 12 week scan isn't that accurate thats why they give (last menstrual period. How accurate are dating scans (28 posts) did your dating scan turn out to be right according to later scans dating scans are more accurate than lmp.
Hi ladies, just jumping over from third tri please can you help my question is for those of you who knew the date of your lmp and whose scan dates differed from your lmp dates, which was more. The dating scan is the most accurate, or so i have been told, but i think it depends when you got it i had mine done at 8 weeks and set me a date of aug 27, but that was at a fertility clinic when i was 14 weeks along, i switched to an ob/gyn in my own city and he went by my lmp and he has the 29th of august. Ultrasound dating is more accurate when done towards the end of the first trimester as the pregnancy progresses, ultrasound measurement used for dating have a higher error of margin ultrasound dating can be a problem if the pregnancy measures greater than 2 weeks +/- your lmp date any concerns should be discussed with your physician.
I'd prob say scan date, with all 3 of mine my lmp date made my birth due date 3 weeks over 40 weeks, the 12 week dating scan was more accurate for example, my lmp date said my son should be born october 19th 11, the scan date made it 2nd october that i'd be 40 wks, i ended up giving birth 23rd sept at 38wks 4 days. Which due dates are more accurate - scan dates or lmp date - posted in pregnancy: tips, questions and information: hi - i was just wondering what others think in. How do you calculate due date from conceptionoct 18, , diagnosis, helpful answers on causes, treatment, 2011 doctors give trusted, symptoms, more: dr i'm 16+5 and have already been given 3 due dates and its changed for a 4th time back to the 2nd estimated due date i've not even had my 20 week scan yet.