chemical pregnancy


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Related to chemical pregnancy: ectopic pregnancy

chemical pregnancy

n.
Pregnancy resulting from in vitro fertilization or other reproductive technology, characterized by low levels of HCG and usually miscarriage prior to implantation.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
A chemical pregnancy occurs when an egg is fertilized but never implants in the uterus.
of embryos transferredc 1 30 (14.8) 24 (16.4) 2 130 (64.0) 97 (66.4) [greater than or equal to] 3 43 (21.2) 25 (17.1) Pregnancy outcome (d) No transfer 8 (3.8) 6 (4.0) No oocytes retrieved 3 2 Fertilization failure 5 4 Implantation failure (c) 78 (38.4) 47 (32.2) Chemical pregnancy (c) 13 (6.4) 9 (6.2) Ectopic pregnancy (c) 3 (1.4) 3 (2.0) Spontaneous abortion (c) 19 (9.0) 17 (11.2) Therapeutic abortion (c) 1 (0.5) 1 (0.7) Stillbirth (c) 1 (0.5) 0 (0.0) Live birth (c) 88 (43.4) 69 (47.3) Intrauterine insemination (IUI) No.
The goal of the study was to compare the status of chemical pregnancy (based on positive blood test) among those who experienced GA and SA while considering the possible effects of major clinical and laboratory variables.
Fertility clinics and physicians who specialize in the use of assisted reproductive technology requested a code to identify patients who have what is referred to (imprecisely) as a "false-positive pregnancy," "chemical pregnancy," or "biochemical pregnancy." These terms do not, however, accurately describe a pregnancy achieved using hormone stimulation or other such "chemical" methods.
He believes Diana's body was embalmed in Paris deliberately to obscure the results of any chemical pregnancy test had one been conducted.
He believes her body was embalmed in Paris deliberately to obscure the results of any chemical pregnancy test, had one been conducted.
But that all came crashing down when we later discovered it to be a 'chemical pregnancy' which only lasted a couple of days.
316) studied the association of serum levels of HCB, DDT, and the DDT meraholite dichioro-diphenyldichloroethylene (DDE) with implantation failure, chemical pregnancy, and spontaneous abortion among women who had in vitro fertilization (IVF).
Chemical pregnancy was defined as the presence of serum B-HCG [greater than or equal to]25 IU/L 14 days after embryo transfer.
No statistically significant associations were observed between DDT/DDE and IVF outcomes or between HCB and chemical pregnancy or spontaneous abortion.
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