Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
|
pubmed:dateCreated |
1990-12-27
|
pubmed:abstractText |
Vaginal sonography and determination of serum hCG levels were carried out in 22 healthy pregnant women every 2 to 4 days after the first positive pregnancy test until a living fetus was observed. Gestational age was calculated from the day of ovulation, assessed by LH surge or hCG administration, plus 14 days. A gestational sac of 1-3 mm was detected at a mean (SEM) of 31.2 (0.2) days of gestation (range 30-33 days). The corresponding mean hCG level was 730 iu/l (30) and the range 467-935 iu/l (International Reference Preparation). The yolk sac was detected at a mean of 36.0 (0.2) days, range 34-38 days, at a mean hCG level of 4130 iu/l (370), range 1120-7280 iu/l. Fetal heart motion was visible at a mean of 41.1 (0.3) days, range 39-43 days and the corresponding mean hCG level was 12,050 iu/l (1240), range 5280-22,950, iu/l. The yolk sac and the fetal heart motion were always seen when the sac exceeded 10 and 18 mm in mean diameter, respectively.
|
pubmed:commentsCorrections | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
AIM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0306-5456
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
97
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
899-903
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:2223680-Chorionic Gonadotropin,
pubmed-meshheading:2223680-Female,
pubmed-meshheading:2223680-Fetal Heart,
pubmed-meshheading:2223680-Gestational Age,
pubmed-meshheading:2223680-Humans,
pubmed-meshheading:2223680-Longitudinal Studies,
pubmed-meshheading:2223680-Pregnancy,
pubmed-meshheading:2223680-Pregnancy Trimester, First,
pubmed-meshheading:2223680-Ultrasonography, Prenatal,
pubmed-meshheading:2223680-Uterus,
pubmed-meshheading:2223680-Yolk Sac
|
pubmed:year |
1990
|
pubmed:articleTitle |
Normal early pregnancy: serum hCG levels and vaginal ultrasonography findings.
|
pubmed:affiliation |
Department of Obstetrics and Gynecology, University Central Hospital, Helsinki, Finland.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|