ALB and COVID-19: Albumin makes up roughly 50% of the synthesized proteins in the liver, amounting to about 14 to 17 g/day, and performs various physiological roles in the body.[7] Nonetheless, decline of albumin has been repeatedly addressed in COVID‐19.[8–10] Furthermore, the predictive value of albumin on admission has also been explored.[11–13] However, it is unclear whether the lowest level of serum albumin during a hospital stay can predict the outcome of COVID-19.