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Hypomagnesemia in Pre-Renal Acute Kidney Injury Patients with Non-Recovery of the Renal Functions

Objective: To determine the hypomagnesaemia frequency in pre-renal acute kidney injury (AKI) patients with non-recovery of renal functions. 
Study Design: Cross-sectional study. 
Place and Duration of Study: Al-Noor Specialist Hospital Holy Makah, Saudi Arabia, from Jul 2014 to Jan 2015. 
Methodology: A total of 150 acute kidney injury patients qualifying the inclusion/exclusion criteria were enrolled in this study. Serum magnesium (Mg) levels were measured for all the patients. Serum magnesium level <0.70 mmol/L (<1.7 mg/dL) was labeled as hypomagnesaemia. 
Results: The mean age of the patients was 51.64 ± 13.61 years, with 31% males and 69% females. Hypertension was present in 58 (38.7%) patients, 38 (25.3%) patients were obese, and hypomagnesaemia was present in 25% patients. A statistically insignificant difference was found between age of patients (p=0.086) and gender (p=0.970). 
Conclusion: Our study showed that in patients with acute kidney injury with non-recovery of renal functions, the rate of hypomagnesaemia is quite high. Therefore patients with non-recovery should be screened for magnesium levels in future acute kidney injury.