Pounds per square inch. The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch:
small for gesÂ·taÂ·tionÂ·al age. Infant whose birth weight is below the tenth percentile for gestational age. small for gestational age. SGA. 1. Term describing an infant whose birth weight is at or below the 10th percentile, as correlated with the number of weeks in utero on the intrauterine growth chart.
Postpartumgestational diabetes (GDM)Macrosomiashoulder dystociaestimated fetal weight (EFW) Macrosomia is the term used to define an infant that measures more than 8 pounds 13 ounces or 4,000 grams (4 kg) at birth. Some definitions use 4,5000 grams (9lb 15oz) as cutoff. While macrosomia can be suspected prior to birth mostly from ultrasound measurements, it is only definitively determined after birth by weighing the baby. Ultrasound measurements to calculate the baby's weight are not always accurate.