Abstract Background Correcting patients’ circulating calcium to albumin level is a common clinical practice to aid in the evaluation of calcium disorders. More recent studies have called into question the utility of the calculation relative to its ubiquity. The purpose of this study is to re-evaluate the practice of calcium adjustment and thus impact on the interpretation of calcium level. Methods Retrospective calcium and albumin levels performed and reported during May 2022 were retrieved. Reference intervals for both serum calcium and albumin were statistically derived using the Hoffman regression method following removal of outliers. Samples exhibiting hypoalbuminemia had their calcium adjusted using the formula (corrected calcium = (0.8 * (derived mean normal albumin - patient's albumin) + calcium). Patients who had their calcium levels adjusted were then compared to the currently in use reference interval to determine if their initial classification of calcium levels was impacted. Results Reported calcium and albumin results from a total of 1639 patients (712 males and 927 females) were obtained. Male patients, 137 (19%) were found to exhibit hypoalbuminemia and their calcium levels were adjusted with 15 patients (2% of total) had their initial calcium status change. 13 patients were reclassified from a state of hypocalcemia to normocalcemia (average increase in calcium levels was 0.9 mg/dL), while 2 patients were reclassified as being hypercalcemic. Among females, 151 (16%) found to exhibit hypoalbuminemia had their calcium levels adjusted with 12 patients (1.3% of total) having their initial calcium classification changed. 11 were reclassified from a state of hypocalcemia to normocalcemia (average increase in calcium levels was 0.89 mg/dL) and one patient was reclassified as hypercalcemic. There was no gender specific significant difference in the extent of required calcium adjustment (p= 0.92). Among the 474 black patients 88 (19%) exhibited hypoalbuminemia and mean calcium level of 9.51 mg/dL. Of those 88 patients, 4 were reclassified from a state of hypocalcemia to normocalcemia (average calcium increase of 0.96 mg/dL) and one patient status changed from normocalcemia to hypercalcemia. Furthermore, among the 1094 white patients, 191 (17%) exhibited hypoalbuminemia and had a mean calcium level of 9.38 mg/dL. Among the white patients, 21 (2%) changed from a state of hypocalcemia to normocalcemia (average calcium increase of 0.88 mg/dL). One patient changed from a state of normocalcemia to hypercalcemia. There was no significant racial difference in in the extent of required calcium adjustment (p=0.65). Conclusions The practice of adjusting calcium to account for albumin levels lead to changes in patients’ calcium status and thus likely to be of benefit in clinical management. There were no significant gender or racial differences in the relative proportion of changes in calcium status following albumin correction.