Naegele's Rule

by Cathy Parkes April 04, 2022 Updated: February 16, 2024

A patient's estimated date of delivery can be determined using Naegele's Rule. After determining the first day of the patient's last period, subtract 3 months, then add 1 week and 1 year.

A patient's estimated date of delivery can be determined using Naegele's Rule. After determining the first day of the patient's last period, subtract 3 months, then add 1 week and 1 year. 

Cool Chicken  Cathy's Easier Rule: Add 9 months and 1 week.


Leave a comment

Comments will be approved before showing up.


Related Posts

Medications for the infant after delivery include "eyes and thighs".

Newborn Medications

Medications for the infant after delivery include "eyes and thighs": erythromycin ophthalmic ointment to prevent ophthalmia neonatorum, Vitamin K administered IM in the vastus lateralis to prevent bleeding, and the Hepatitis B vaccine administered IM in the other thigh.
Read More
Lithotomy position

Lithotomy Position

Lithotomy position has the patient supine with their knees flexed and legs abducted. This position is commonly used for gynecologic, rectal, or urologic procedures.
Read More
Educate patients > 60 years of age who have had chickenpox (Varicella) that prevention of shingles (Herpes Zoster) is possible with the Zostavax vaccine.

Zostavax Vaccine

Educate patients > 60 years of age who have had chickenpox (Varicella) that prevention of shingles (Herpes Zoster) is possible with the Zostavax vaccine.
Read More