• Tazeen Rasheed, Haris Alvi, Majid Ahmed Shaikh, Faiza Sadaqat Ali, Bader Faiyaz Zuberi, and Wara Subhan.
• Dr. Tazeen Rasheed, Assistant Professor, Dow University of Health Sciences, Karachi, Pakistan.
• Pak J Med Sci. 2020 Nov 1; 36 (7): 1651-1654.

ObjectiveTo determine the frequency of hyponatremia in patients taking Sodium Picosulfate Solution (SPS) solution for bowel preparation prior to colonoscopy and to compare serum sodium levels before and after SPS.MethodsThis interventional study was conducted at Dr. Ruth K. M. Pfau, Civil Hospital Karachi between June 2019 to November 2019. Patients undergoing colonoscopy were included in the study. All patients were given SPS. Two samples of blood for electrolytes were taken, one 30 minutes before taking SPS solution and another 30 minutes before colonoscopy. Paired sample t-test was used to determine the difference between serum sodium level before taking the colonoscopy solution and serum sodium level before colonoscopy.ResultsFifty- four patients fulfilling inclusion criteria were included. Out of the 54 patients 28 (51.9%) were males and 26 (48.1%) were females. Mean sodium levels before taking colonoscopy solution was 139.7 ±3.5 mEq/L and mean sodium level before colonoscopy was 138.9 ±3.8 mEq/L. The difference between serum sodium level before taking SPS colonoscopy solution and before colonoscopy was found to be statistically insignificant (t (53) = 1.308; p = 0.196).ConclusionNo serious adverse effects were reported in any of our patients. There was no significant difference in the serum sodium level of patients undergoing colonoscopy before taking SPS bowel preparation solution and serum sodium level before colonoscopy.Copyright: © Pakistan Journal of Medical Sciences.

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