Rx Note

Introduction Before you start your pediatric or neonatal clinical rotation, you should familiarize yourself with a few key terms. Age Terminology Neonates - babies from birth to the age of 30 days of postnatal life, including both preterm and post-term babies. Gestational age (GA) - the age from the time of conception to birth, expressed in completed weeks. Chronological age or postnatal age (PNA) - the time elapsed after birth, expressed in days, weeks, months or years. Post-menstrual age (PMA) - is the sum of gestational age and chronological age, usually expressed in weeks. Example: A preterm infant born at a gestational age of 33 weeks who is currently 10 weeks old (chronological age) would have a postmenstrual age of 43 weeks. Corrected age or adjusted age - a term most appropriately used to describe children up to 3 years of age who were born preterm. This term represents the age of the child from the expected date of delivery. Corrected age is calculated by subtracting the num...