10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 3 2013 (July - September) Background: Preeclampsia occurring in 6-8% of all pregnancies together with other hypertensive disorders of pregnancy is the 3 lessThan sup greaterThan rd lessThan /sup greaterThan most common cause of maternal mortality. The present study is intended to identify at risk patients. Methods lessThan b greaterThan : lessThan /b greaterThan Serum calcium, creatinine and urinary calcium, creatinine were estimated in 25 controls and 100 study group women between 24-34 weeks of gestation. Calcium to creatinine ratio in urine was calculated. The patients were followed up for signs of development of Pregnancy Induced Hypertension (PIH) & its relation to low urinary calcium to creatinine ratio (CCR). Results: A calcium to creatinine ratio of 0.04 was considered as cut off for evaluation. Out of total 125 cases, 22 had CCR £ 0.04 and of these 68.18% developed PIH later (P lessThan 0.001). In remaining 103 patients with CCR greaterThan 0.04 only 4.85% had PIH. The sensitivity of CCR in predicting PIH is 68.18% and specificity is 95.15%. Conclusion: The findings indicate that a low Ca/Cr ratio is an useful screening test to predict the PIH in patients free of symptoms. DR. N.V. LAKSHMI MD , DR.P.KIRANMAI MD , DR.K.AMBIKA DEVI MD AND DR. J. RAMA RAO MD Calcium Creatinine Ratio ( CCR) , Pregnancy induced Hypertension (PIH) 1021-1026