Question:easy
Which of the following is true about the expected date of delivery (EDD)?
Which of the following is true about the expected date of delivery (EDD)?
Show Hint
The EDD is just an estimate - very few babies actually arrive on that exact day.
Updated On: Jun 24, 2026
- Less than 10% of deliveries occur on EDD
- Less than 20% of deliveries occur on EDD
- 80% of the deliveries occur on EDD
- 90% of the deliveries occur on EDD
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: EDD is a predicted date 280 days from the first day of the last period. Since gestation length varies between women, it cannot reliably pinpoint the actual day of birth.
Step 2: Data show only a small minority, well under 5%, deliver precisely on that predicted date. Most babies arrive within a week before or after it.
Step 3: Preterm births account for about 13% and post term for roughly 5 to 7%, which further spreads deliveries away from the single predicted day.
Step 4: Therefore the only accurate choice is that under 10% deliver on the EDD; claims of 80% or 90% are far too high.
\[\boxed{\text{Less than 10% of deliveries occur on EDD}}\]
Step 2: Data show only a small minority, well under 5%, deliver precisely on that predicted date. Most babies arrive within a week before or after it.
Step 3: Preterm births account for about 13% and post term for roughly 5 to 7%, which further spreads deliveries away from the single predicted day.
Step 4: Therefore the only accurate choice is that under 10% deliver on the EDD; claims of 80% or 90% are far too high.
\[\boxed{\text{Less than 10% of deliveries occur on EDD}}\]
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