post menstrual age calculation
Post Menstrual Age (PMA) Post Menstrual Age (PMA) represents the age of the infant in weeks at discharge home, death or first birthday, whichever occurs first, and is calculated as follows: Multiply the gestational age, weeks, times 7 and add gestational age, days. These are Items 2a and 2b on the 28 Day Form. Add the total length of stay in days and, if the infant is outborn, the age at admission to your hospital. Finally, divide the result by seven. Examples: Example 1: An inborn infant with gestational age of 32 weeks, 3 days, is discharged home from your hospital after 23 days (Initial Length of Stay = 23 days).