First trimester definition

First trimester means the first twelve weeks from conception based on an appropriate clinical estimate by a licensed physician.
First trimester means 1 through 14 weeks as measured from the first day of the last menstrual period or 1 through 12 weeks as measured from the date of fertilization.
First trimester means the first twelve (12) weeks of gestation;

Examples of First trimester in a sentence

  • First trimester vitamin D, vitamin D binding protein, and subsequent preeclampsia.

  • First trimester fetal growth restriction and cardiovascular risk factors in school age children: population based cohort study.

  • First trimester paroxetine use and the prevalence of congenital, specifically cardiac, defects:a meta-analysis of epidemiological studies.

  • First trimester exposure to paroxetine and risk of cardiac malformations in infants: the importance of dosage.

  • First trimester begins with the first day of the last menstrual period and ends 12 weeks later.


More Definitions of First trimester

First trimester means the time period up to fourteen weeks after the
First trimester means 1 through 14 weeks as measured from the first day of the last
First trimester means the time period from six up to fourteen weeks
First trimester means the time period up to fourteen weeks after the first day of the last menstrual period.
First trimester means the first 12 weeks from conception based on an appropriate clinical estimate by a licensed
First trimester means [begin strikeout]the first 13 weeks starting with the first day of a pregnant woman's last menstrual period and ending at the end of the 13th week, or[end strikeout] the first 13 weeks of a 40-week, full-term pregnancy[begin strikeout] as documented by a licensed health care professional[end strikeout].
First trimester means a period of a pregnancy measured from the first day of the last normal menses through the end of the fourteenth week or the first twelve (12) weeks of pregnancy as determined by physician examination.