scholarly journals Influence of maternal characteristics and gestational age on hemodynamic indices: NICOM device‐specific reference ranges

2019 ◽  
Vol 54 (5) ◽  
pp. 670-675 ◽  
Author(s):  
H. Perry ◽  
O. Stirrup ◽  
J. Gutierrez ◽  
D. Vinayagam ◽  
B. Thilaganathan ◽  
...  
Keyword(s):  
Gestational Age ◽  
Specific Reference ◽  
Reference Ranges ◽  
Maternal Characteristics

Thyroid-Stimulating Hormone in Singleton and Twin Pregnancy: Importance of Gestational Age–Specific Reference Ranges

2006 ◽  
Vol 107 (1) ◽  
pp. 206
Author(s):  
Jodi S. Dashe ◽  
Brian M. Casey ◽  
Edward C. Wells ◽  
Donald D. McIntire ◽  
Kenneth J. Leveno ◽  
...  
Keyword(s):  
Gestational Age ◽  
Twin Pregnancy ◽  
Thyroid Stimulating Hormone ◽  
Specific Reference ◽  
Reference Ranges ◽  
Stimulating Hormone

Gestational age-specific reference ranges for amniotic fluid assessment in monochorionic diamniotic twin pregnancies

2013 ◽  
Vol 41 (6) ◽  
pp. 649-652 ◽  
Author(s):  
P. DeKoninck ◽  
J. Deprest ◽  
P. Lewi ◽  
J. Richter ◽  
S. Galjaard ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Specific Reference ◽  
Reference Ranges ◽  
Fluid Assessment ◽  
Twin Pregnancies

Investigating the changes in amino acid values in premature infants: a pilot study

2018 ◽  
Vol 31 (4) ◽  
pp. 435-441 ◽  
Author(s):  
Yuqi Yang ◽  
Bin Yu ◽  
Wei Long ◽  
Huaiyan Wang ◽  
Ying Wang ◽  
...  
Keyword(s):  
Birth Weight ◽  
Amino Acid ◽  
Low Birth Weight ◽  
Premature Infants ◽  
Gestational Age ◽  
Control Group ◽  
Specific Reference ◽  
Reference Ranges ◽  
Low Birth Weight Infants ◽  
Normal Birth

AbstractBackground:The objective of the study was to investigate the changes in amino acid (AAs) values in premature infants.Methods:A total of 2159 premature and/or low birth weight infants were recruited for this study. They were divided into three groups: premature infants with normal birth weight (G1), simple low birth weight infants (G2) and premature combined with low birth weight infants (G3). The tandem mass spectrometry technique was used to detect the levels of 11 AAs in neonatal blood.Results:Compared with normal babies, there were eight and five AAs that significantly changed in G1 and G2, respectively. It was worth noting that the changes greatly exacerbated when the babies were both premature and of low birth weight. All the levels of AAs demonstrated significant changes in G3 compared with the normal control group (G4). With the increase in gestational age, the AAs in premature infants tended to the levels in normal newborns. Meanwhile, there was a correlation between AAs and birth weight. Four AAs significantly changed with the increase in body weight. Among normal newborns, the levels of AAs in girls were significantly higher than in boys. However, if the newborns were premature or had low birth weight, the differences between AA values and sexual distinction would decrease. In the end, we established the specific reference ranges of AAs for premature and/or low birth weight infants.Conclusions:There were significant differences in AAs in the premature and/or low birth weight infants. Gestational age and birth weight were two important factors inflecting the AAs metabolism.

Gestational Age-Specific Reference Ranges of Hepcidin in Cord Blood

Neonatology ◽  
2014 ◽  
Vol 106 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Laila Lorenz ◽  
Johanna Herbst ◽  
Corinna Engel ◽  
Andreas Peter ◽  
Harald Abele ◽  
...  
Keyword(s):  
Cord Blood ◽  
Gestational Age ◽  
Specific Reference ◽  
Reference Ranges

Thyroid-Stimulating Hormone in Singleton and Twin Pregnancy: Importance of Gestational Age–Specific Reference Ranges

2005 ◽  
Vol 106 (4) ◽  
pp. 753-757 ◽  
Author(s):  
Jodi S. Dashe ◽  
Brian M. Casey ◽  
C Edward Wells ◽  
Donald D. McIntire ◽  
E William Byrd ◽  
...  
Keyword(s):  
Gestational Age ◽  
Twin Pregnancy ◽  
Thyroid Stimulating Hormone ◽  
Specific Reference ◽  
Reference Ranges ◽  
Stimulating Hormone

59 Gestational age-specific reference ranges for the sFlt-1/PlGF ratio in multiple pregnancies

2016 ◽  
Vol 6 (3) ◽  
pp. 165-166 ◽  
Author(s):  
Maria de la Calle ◽  
Juan L. Delgado ◽  
Stefan Verlohren ◽  
Ana Escudero ◽  
José l Bartha ◽  
...  
Keyword(s):  
Gestational Age ◽  
Specific Reference ◽  
Reference Ranges ◽  
Multiple Pregnancies ◽  
Plgf Ratio

scholarly journals Gestational age-specific reference ranges from different laboratories misclassify pregnant women's thyroid status: comparison of two longitudinal prospective cohort studies

2014 ◽  
Vol 170 (2) ◽  
pp. 329-339 ◽  
Author(s):  
Sofie Bliddal ◽  
Ulla Feldt-Rasmussen ◽  
Malene Boas ◽  
Jens Faber ◽  
Anders Juul ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Pregnant Women ◽  
Gestational Age ◽  
Reference Range ◽  
The Other ◽  
Specific Reference ◽  
Reference Ranges ◽  
Thyroid Status ◽  
Prospective Cohort Studies ◽  
Tsh Levels

ObjectivesCorrect interpretation of thyroid status during pregnancy is vital to secure fetal development. Pregnancy-related changes in maternal thyroid status necessitate the use of gestational age-specific reference ranges. In this study, we investigated between-laboratory reproducibility of thyroid reference ranges in pregnant women.DesignComparison of two longitudinal prospective cohort studies including 255 (cohort 1) and 101 (cohort 2) healthy antibody-negative Danish pregnant women attending prenatal care at Copenhagen University Hospital.MethodsDifferent immunoassays were used to measure thyroid hormone levels in the two cohorts. Thyroid hormone reference ranges were established for every 5 weeks of gestation. Differences between cohorts were explored through mixed-model repeated measures regression analyses. By applying reference ranges from one cohort to the other, the proportion of women who would be misclassified by doing so was investigated.ResultsTSH increased and free thyroxine (FT4) decreased as pregnancy progressed. Results indicated highly significant differences between cohorts in free triiodothyronine (F=21.3, P<0.001) and FT4 (F=941, P<0.001). TSH levels were comparable (P=0.09). Up to 90.3% of the women had FT4 levels outside their laboratory's nonpregnant reference range, and up to 100% outside the other cohort's gestational-age-specific reference ranges. Z-score-based reference ranges markedly improved comparison between cohorts.ConclusionEven in the same region, the use of gestational-age-specific reference ranges from different laboratories led to misclassification. Up to 100% of maternal FT4 levels fell outside the other cohort's reference range despite similar TSH levels. In clinical practice, thyroid testing of pregnant women without adding method specificity to gestational age-dependent reference ranges will compromise patient safety.

scholarly journals Gestational-age-specific reference ranges for blood pressure in pregnancy

2015 ◽  
Vol 33 (1) ◽  
pp. 96-105 ◽  
Author(s):  
Corrie Macdonald-Wallis ◽  
Richard J. Silverwood ◽  
Abigail Fraser ◽  
Scott M. Nelson ◽  
Kate Tilling ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Gestational Age ◽  
Specific Reference ◽  
Reference Ranges ◽  
In Pregnancy

Breed‐specific reference ranges for standard echocardiographic measurements in salukis

2019 ◽  
Vol 60 (6) ◽  
pp. 374-378 ◽  
Author(s):  
S. Giraut ◽  
J. Häggström ◽  
L. L. E. Koskinen ◽  
H. Lohi ◽  
M. Wiberg
Keyword(s):  
Specific Reference ◽  
Reference Ranges
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