A patient's pregnancy test is positive, and she wants to know when the baby is due. The first day of her last menstrual period was June 14, and that period ended June 20. Using the Nà¤gele rule, what is her expected date of delivery?
a. March 7
b. March 14
c. March 21
d. March 27
ANS: C
To determine the expected date of delivery using the Nägele rule, 7 days are added to the first day of the last menstrual period; then 3 months are subtracted. Therefore, adding 7 days to June 14 would be June 21 and subtracting 3 months would make the expected delivery date March 21.
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