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.
CASE STUDIES You are admitting a newborn and performing a gestational age assessment. The infant weighs 6 pounds, 10 ounces; her length is 19 inches; her head circumference is 13 inches.n infantâs gestational age assessment reveals that her weight is SGA. This means thata. she was born before 37 completed weeks of gestation.b. her weight falls between the 10th and 90th percentile.c. she has a low birth weight in relation to her length.d.