Rachna Kapoor, Gaurav Dhawan, Padmaja Kodali, Iga Myeloma with Increased Anion Gap, Pseudo hyperphosphatemia and Pseudohyponatremia, Journal of Human Health Research, Volume 1, Issue 2, 2018, Pages 18-21, ISSN 2576-9383, https://doi.org/10.14302/issn.2576-9383.jhhr-18-2120. (https://oap-researcharticles.org/jhhr/article/794) Abstract: A myeloma case is described with laboratory artifacts including increased anion gap, pseudohyperphosphatemia, and pseudohyponatremia. The report explains mechanisms behind paraprotein‑related assay interference and diagnostic pitfalls. Keywords: pseudohyperphosphatemia; pseudohyponatremia