National Vital Statistics System

8. Date last normal menses began

Category: Prenatal Care and Pregnancy History

BC # 30

FDFWS # 8

FDR # 32

Definitions, instructions, sources, keywords and abbreviations
Definitions

The date the mother’s last normal menstrual period began.

This item is used to compute the gestational age of the infant.

Instructions

Enter all known parts of the date the mother’s last normal menstrual period began. If no parts of the date are known, write in “unknown.”

Do not estimate the date.

Sources 1st  Prenatal care record under
  • Menstrual history
  • Labor and delivery nursing admission triage form

2nd Admission history and physical (H&P) under – Medical history

Keywords and Abbreviations LMP – Last menstrual period

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