A woman's last menstrual period began 142 days ago. What is her gestational age?
Answer and explanation
Correct answer: B. 20 weeks and 2 days
- Step 1: There are 7 days in a week, so 142 / 7 = 20 remainder 2.
- Step 2: The gestational age is 20 weeks and 2 days.
Answer
20 weeks and 2 days.
Why not the others: Gestational age is counted in 7-day weeks from the first day of the last period; dividing by 30 treats weeks as months.
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