How to Build a Gestational Age and Dating Tool Patients Can Actually Use
Gestational age calculation is one of the most fundamental tasks in obstetrics, and one of the most consistently confusing for patients. The concept of dating a pregnancy from the last menstrual period, the difference between gestational and embryonic age, the role of ultrasound in confirming or adjusting dating, and the implications of a discrepancy between clinical and ultrasound dating: none of these are intuitive, and most patients encounter them without adequate explanation.
A well-built gestational age tool designed for patient use can change that. This course covers how to build one that is accurate, clear, and genuinely useful for the patients you serve.
Why existing gestational age calculators fall short
There is no shortage of pregnancy due date calculators on the internet. Most of them do the basic math correctly: add 280 days to the last menstrual period, display a due date. What most of them do not do is explain the concept, communicate uncertainty, address the role of ultrasound dating, or help patients understand what their gestational age actually means clinically.
A patient who knows her due date but does not understand what gestational age means, why it matters, and how it might change based on an early ultrasound is not an informed patient. She is a patient who has a number without the context to use it. The tool you build should provide both.
