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Descriptor English: Pregnancy Trimester, First
Descriptor Spanish: Primer Trimestre del Embarazo
Descriptor primer trimestre del embarazo
Entry term(s) fase placentaria temprana
primer trimestre
Scope note: El primer tercio de un EMBARAZO humano, desde el primer día del último período menstrual normal (MENSTRUACIÖN) hasta completar 14 semanas (98 días) de gestación.
Descriptor Portuguese: Primeiro Trimestre da Gravidez
Descriptor French: Premier trimestre de grossesse
Entry term(s): Early Placental Phase
Early Placental Phases
First Pregnancy Trimester
First Pregnancy Trimesters
First Trimester
First Trimester Pregnancies
First Trimester Pregnancy
First Trimesters
Phase, Early Placental
Phases, Early Placental
Placental Phase, Early
Placental Phases, Early
Pregnancies, First Trimester
Pregnancy Trimesters, First
Pregnancy, First Trimester
Trimester, First
Trimesters, First
Tree number(s): G08.686.707.408
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D011261
Scope note: The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation.
Annotation: human only
Allowable Qualifiers: BL blood
CF cerebrospinal fluid
DE drug effects
EH ethnology
GE genetics
IM immunology
ME metabolism
PH physiology
PX psychology
RE radiation effects
UR urine
Previous Indexing: Gestational Age (1968-1974)
Pregnancy (1966-1974)
Time Factors (1967-1974)
Public MeSH Note: 76; was PREGNANCY, FIRST TRIMESTER 1975
Online Note: use PREGNANCY TRIMESTER, FIRST to search PREGNANCY, FIRST TRIMESTER 1975
History Note: 76; was PREGNANCY, FIRST TRIMESTER 1975
Entry Version: PREGN TRIMESTER FIRST
DeCS ID: 11707
Unique ID: D011261
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1975/01/01
Date of Entry: 1975/07/25
Revision Date: 2018/07/01
Pregnancy Trimester, First - Preferred
Concept UI M0017488
Scope note The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation.
Preferred term Pregnancy Trimester, First
Entry term(s) Early Placental Phase
Early Placental Phases
First Pregnancy Trimester
First Pregnancy Trimesters
First Trimester
First Trimester Pregnancies
First Trimester Pregnancy
First Trimesters
Phase, Early Placental
Phases, Early Placental
Placental Phase, Early
Placental Phases, Early
Pregnancies, First Trimester
Pregnancy Trimesters, First
Pregnancy, First Trimester
Trimester, First
Trimesters, First



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