postconceptional age
Also written as: PCA — PostConceptional Age
Total age from conception, calculated as gestational age plus chronological age, used in pediatric anesthetic risk assessment.
Full Definition
The total time elapsed from conception, calculated by adding the gestational age at birth to the current chronological age since birth. This measurement is particularly important in pediatric anesthesia for infants under one year, especially those born prematurely. Postconceptional age helps determine the risk of postoperative apnea, with infants under 44-46 weeks postconceptional age being at higher risk. This calculation influences decisions about outpatient versus inpatient procedures, monitoring requirements, and anesthetic technique selection.
Usage
Usage note: Use the 44-46 week threshold as a guide for apnea risk stratification.
In Context
- "The infant's postconceptional age of 42 weeks indicated high risk for postoperative apnea monitoring." — Risk assessment documentation
- "Due to postconceptional age less than 46 weeks, overnight admission was recommended following anesthesia." — Perioperative planning notes