Background: This test is based on the principle that fatal heart rate accelerates in response to fatal movement, reflecting the connection between fatal neurological function and cardiovascular reflexes. As fatal compromise progresses, this association is one of the first to be disrupted. Methods: A study was conducted to evaluate the predictive value of the Non-Stress Test (NST) for fatal outcomes in high-risk pregnancies. The research was carried out on 100 women with high-risk pregnancies between 2014 and 2015 at the Department of Obstetrics and Gynaecology, B.R.S.H., Kolkata. The NST was performed using Cardiotocography (CTG) in accordance with the National Institute for Health and Care Excellence (NICE) guidelines to predict favourable or adverse fatal. Results: Out of 100 patients as per NST result 22% were found non-reactive and 78% were found reactive. The risk of less liquor quantity was2.01 times more for patients with non-reactive NST result as compared to the patients with reactive NST and risk was not significant. NICU admission was 2.5 times more for patients with non- reactive NST result as compared to the patient with reactive NST result Risk of death was 3.66 times more for patients with non- reactive NST result as compared to the patients with reactive NST results (OR=3.66 (0.22,61.11);p=0.91)and risk was not significant. Conclusion: Further studies are needed to set the validity and reliability standards for NST.

Background: This test is based on the principle that fatal heart rate accelerates in response to fatal movement, reflecting the connection between fatal neurological function and cardiovascular reflexes. As fatal compromise progresses, this association is one of the first to be disrupted. Methods: A study was conducted to evaluate the predictive value of the Non-Stress Test (NST) for fatal outcomes in high-risk pregnancies. The research was carried out on 100 women with high-risk pregnancies between 2014 and 2015 at the Department of Obstetrics and Gynaecology, B.R.S.H., Kolkata. The NST was performed using Cardiotocography (CTG) in accordance with the National Institute for Health and Care Excellence (NICE) guidelines to predict favourable or adverse fatal. Results: Out of 100 patients as per NST result 22% were found non-reactive and 78% were found reactive. The risk of less liquor quantity was2.01 times more for patients with non-reactive NST result as compared to the patients with reactive NST and risk was not significant. NICU admission was 2.5 times more for patients with non- reactive NST result as compared to the patient with reactive NST result Risk of death was 3.66 times more for patients with non- reactive NST result as compared to the patients with reactive NST results (OR=3.66 (0.22,61.11);p=0.91)and risk was not significant. Conclusion: Further studies are needed to set the validity and reliability standards for NST.