Dating Pregnancy from the Last Menstrual Period

Purpose: To estimate the duration of pregnancy using 266 days from the date of conception (or 280 days from the first day of the last menstrual period [LMP]).

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Evaluation

Are you evaluating a pregnant woman's gestational dates?

Yes

Date known

First day of last menstrual period (MM/DD/YYYY)

Examination date (MM/DD/YYYY)

Results

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Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Estimated date of confinement (EDC, MM/DD/YYYY)

Estimated date of conception (MM/DD/YYYY)

Weeks of gestation from LMP

Weeks since conception

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Risk Factors
Clinical Diagnosis, Including Family History For Genetics
- HELLP Syndrome Diagnosis
- Sepsis in Obstetrics Score (SOS) for Evaluating a Septic Obstetrical Patient
Other Testing
- Gestational Age Calculator Using Ultrasound Dates
- Identifying Woman at Risk for Gestational Diabetes Mellitus
Criteria For Diagnosis
Severity, Prognosis, Stage
Complications
- Sepsis in Obstetrics Score (SOS) for Evaluating a Septic Obstetrical Patient
Differential Diagnosis And Mimics, Red Flags
- Criteria for Diagnosis of Pre-Eclampsia and Eclampsia
- Classification for Diabetes During Pregnancy

Therapy

Options
- Hypertrophic Cardiomyopathy | Risk Factors for Pregnancy-Related Mortality
Selection
- Classification for Diabetes During Pregnancy
- Poor Prognostic Findings in Diabetic Women During Pregnancy

Specialty

Obstetrics & Gynecology

Objective

other testing
informed consent
exercise
travel

ICD-10

Z34 - Supervision of normal pregnancy

Info

Purpose: To estimate the duration of pregnancy using 266 days from the date of conception (or 280 days from the first day of the last menstrual period [LMP]).

Specialty: Obstetrics & Gynecology

Objective: other testing, informed consent, exercise, travel

ICD-10: Z34,

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