Aim: To determine the frequency of preeclampsia induced acute kidney injury in patients presenting in a tertiary care hospital.

Study design: Cross sectional study.

Study setting: Department of Nephrology, KEMU/Mayo Hospital Gynecology, Lady Atchison Hospital Lahore,

Methodology: All 180 pregnant females having acute kidney injury as per operational definition between 15 years to 50 years presenting in 3^rd trimester of pregnancy for delivery were included in study after taking informed consent. Pregnant females with Blood Pressure >140/90mmHg after 20 weeks of pregnancy and laboratory investigation i.e. proteinuria were recorded. All investigations were done from laboratory of KEMU /Mayo hospital Lahore. After the diagnosis was made, the patients were treated according to the guidelines in hospital setting.

Results: In this study, out of 180 cases, 118(65.56%) were between 15-32 years of age whereas 62(34.44%) were between 33-55 years of age, mean±SD was calculated as 30.21±5.35 years, mean blood pressure of the patients was recorded as 154.27±108.15mmHg, mean serum creatinine of the patients was calculated as 4.39±0.28 mg/dl, frequency of urinary protein was recorded as 62(62.22%) while 68(37.78%) patients had no proteinuria, frequency of preeclampsia induced AKI in pregnancy was recorded in 47(26.11%).

Conclusion: Frequency of preeclampsia induces acute kidney injury is very high and it must be diagnosed and treated appropriately in time to reduce maternal mortality and morbidity.