Thrombotic Microangiopathy Causing Acute Kidney Injury in a COVID-19 Patient.

Acute Kidney Injury (AKI) in COVID-19 patients is common and independently associated with higher mortality. The pathophysiology of AKI is multifactorial and may be either direct viral trophism or immune mediated injury and hypercoagulability. This case highlights AKI in a young female with severe COVID-19 due to complement-3 mediated thrombotic microangiopathy with pre-existing chronic kidney disease likely because of IgA nephropathy.