scholarly journals Negative Pregnancy Test

2020 ◽  
Author(s):  
Keyword(s):  
Pregnancy Test ◽  
Negative Pregnancy Test

Negative pregnancy test: Could it be a molar pregnancy?

2007 ◽  
Vol 27 (8) ◽  
pp. 857-858 ◽  
Author(s):  
O. Ofinran ◽  
S. Papaioannou ◽  
V. Kandavel ◽  
S. Shrivastava ◽  
S. Hall ◽  
...  
Keyword(s):  
Molar Pregnancy ◽  
Pregnancy Test ◽  
Negative Pregnancy Test

Adolescents With Negative Pregnancy Test Results

1996 ◽  
Vol 51 (6) ◽  
pp. 364-366
Author(s):  
Laurie Schwab Zabin ◽  
Mark R. Emerson ◽  
Patricia A. Ringers ◽  
Valerie Sedivy
Keyword(s):  
Test Results ◽  
Pregnancy Test ◽  
Negative Pregnancy Test

Subsequent Risk of Childbearing Among Adolescents with a Negative Pregnancy Test

1994 ◽  
Vol 26 (5) ◽  
pp. 212 ◽  
Author(s):  
Laurie Schwab Zabin ◽  
Valerie Sedivy ◽  
Mark R. Emerson
Keyword(s):  
Pregnancy Test ◽  
Negative Pregnancy Test ◽  
Subsequent Risk

FALSE-NEGATIVE PREGNANCY TEST WOMEN TAKING CARBAMAZEPINE

The Lancet ◽  
1982 ◽  
Vol 320 (8296) ◽  
pp. 505 ◽  
Author(s):  
D. Lindhout ◽  
H. Meinardi
Keyword(s):  
False Negative ◽  
Pregnancy Test ◽  
Negative Pregnancy Test

scholarly journals Effects of blood pathological changes before TAI on pregnancy of dairy cows with anestrus and estrus

2021 ◽  
Vol 73 (1) ◽  
pp. 1-10
Author(s):  
Y. Di ◽  
C. Zhao ◽  
Y. Bai ◽  
D. Wang ◽  
F. Zhang ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Artificial Insemination ◽  
Neurotrophic Factor ◽  
Roc Analysis ◽  
Pathological Changes ◽  
Pregnancy Test ◽  
Estrus Detection ◽  
Pregnancy Testing ◽  
Negative Pregnancy Test ◽  
Timed Artificial Insemination

ABSTRACT The objective of this study was to investigate the influence of plasma pathological changes before timed artificial insemination (TAI) on pregnancy of cows. The contents of estrogen (E2), progesterone (P4), glucose (Glu), selenium (Se), brain-derived neurotrophic factor (BDNF), and histamine (HIS) in plasma of 48 Holstein cows were measured before TAI. According to the estrus detection, the cows were divided into estrus (E) and anestrus (A) groups. After pregnancy testing at 28 d after TAI, two groups of E and A were divided into positive pregnancy of E group (EP+), negative pregnancy of E group (EP-), positive pregnancy of A group (AP+), and negative pregnancy of A group (AP-). The contents of E2, P4, Glu, Se, BDNF and hIS significantly differed among the four groups (P<0.01). The ROC analysis was used to determine the risk of negative pregnancy test (-) after TAI was increased when plasma E2 was less than 46.45 pmol/L in cows before TAI. The changes in E2, P4,hIS, Glu, and BDNF in the blood of natural estrus and natural anestrus cows affected the pregnancy after TAI. the level of E2 in plasma may be used to assess the risk of negative pregnancy after TAI.

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