Fig. 6From: Effect of 0.9% NaCl compared to plasma-lyte on biomarkers of kidney injury, sodium excretion and tubular transport proteins in patients undergoing primary uncemented hip replacement – a randomized trialEffect of Isotonic saline vs. PlasmaLyte on fractional excretion of sodium (FENa) in a double-blinded, placebo-controlled study of 38 patients. Urine was collected as a 24-h urine collection (baseline) prior to surgery. As surgery was initiated urine was collected over the course of 4 h (surgery). Hereafter, another urine collection proceeded until the following morning at 8.00 am (post-surgery). Values are shown as means ± SD Data are shown as means ± SD. Statistics are performed with unpaired t-test to test difference in response between treatments, † = p < 0.05. Paired t-test was used to test statistical significant difference from baseline, * = p < 0.05Back to article page