Estimation of Foetal Weight Using Johnson’s Formula and Dare’s Formula
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Abstract
The descriptive research design aimed to compare descrepancies in weight estimates of gestating fetuses between calculations by using Johnson’s Formula and Dare’s Formula . The sample was 72 pregnant women admitted to delivery rooms at a general hospital. Purposive sampling was used to select the sample group. Data collection employed the Gestating Fetus Weight Estimate Data Record Form examined for content validity by three qualified experts. The descrepancy score was 0.90, 0.92, 0.96. The instrumentation used in the study was tested in 10 subject with characteristics similar to the sample in order to determine discrepancies in the data collection of the researcher and the research assistant. The descrepancy score was 95 percent. Data analysis was conducted by using descriptive statistics and the t-test.
The research finding revealed that. The mean discrepancy in the estimated weight of gestating fetuses as measured by Dare’s Formula was less than the discrepancy in the estimated weight of the gestating fetuses calculated by using Johnson’s Formula with statistically significant differences (p < .00). The recommendations from this study are the Dare’s Formula should be adopted as a procedure in nursing practice to provide information in planning nursing activities and determining suitable delivery methods for pregnant mothers, while enhancing nursing effectiveness during the intrapartum period and lowering the incidence of birth complications.
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References
Njoku C, Emechebe C, Odusolu P, Abeshi S, Chukwu C, Ekabua J. Determination of accuracy of fetal weight using ultrasound and clinical fetal weight estimations in Calabar South, South Nigeria. ISRN Otolaryngology [Internet]. 2014 [cited 2019 Jan 10]. Available from: https://search.ebscohost.com/ login.aspx?direct=true&db=asn&AN=100568840&site=eds-live&authtype=ip,uid
Buphasiri P. Shoulder dystocia. Srinagarind Medical Journal 2011;26(1):64-70. (in Thai)
Klankhajhon S. Nursing care for shoulder dystocia. Journal of Nursing and Health Sciences 2013;7(2):1-11. (in Thai)
Ruangchainikom V, Chanrachakul B, Pitukkijronnakorn S, Promsonthi P, Kuenopakun M, Atsadongphongphana P. Quality care in maternal and fetal medicine. 1st. Bangkok: union creation; 2016. (in Thai)
Klang Hospital. Annual report; 2017. Bangkok: Bangkok Metropolitan Administration General Hospital; 2017. (in Thai)
Johnson RW. Calculations in estimating fetal weight. American Journal of Obstetrics and Hynecology 1957;74(4):929.
Dare FO, Ademowore AS, Ifaturoti OO, Nganwuchu A. The value of symphysio-fundal height/ abdominal girth measurements in predicting fetal weight. International Journal of Gynecology & Obstetrics 1990;31(3):243-8.
Mortazavi F, Akaberi A. Estimation of birth weight by measurement of fundal height and abdominal girth in parturients at term. Eastern Mediterranean Health Journal 2010;16(5):553-7.
Parvathavarthini K, Santhanalakshmi C, Prasad G. Comparative study of various methods of fetal weight estimation at term pregnancy in a tertiary hospital in Kanchipuram, Tamil Nadu, India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 2018;7(4): 1602-7.
Rosielyn D, Cristina P. Comparative study of four methods of clinical estimation of fetal weight in the late third trimester admitted for delivery: a prospective study. Philippine Journal of Obstetrics and Gynecology 2014;38(4):14-22.
Rojpolkorn-Gooch P, Rucha Y. Statistics for nursing research and program use spss for windows. Bangkok: JutThong Company; 2006. (in Thai)
Sharma N, Srinivasan J, Sagayaraj B, Lal DV. Foetal weight estimation methods - clinical, sonographic and MRI imaging. International Journal of Scientific and Research Publications 2014;4(1):1-5.