REN and infection: Various mechanisms are possibly involved in kidney injury during COVİD-19 infection, including direct infection of the kidney parenchyma by the virus, endothelial injury, ischaemic acute tubular necrosis, Renin–Angiotensin–Aldosterone System imbalance, microthrombosis, increased vascular permeability, and volume depletion, as well as the development of kidney damage secondary to haemodynamic instability, inflammatory cytokines, and therapeutic approaches (nephrotoxic medications, mechanical ventilation) [3, 6, 11, 22].