Clinical implications of persistently increased blood urea nitrogen/serum creatinine ratio (PI-BUN/Cr) in severe COVID-19 patients

G. AparicioRosario Fernández PlataAnjarath Higuera IglesiasDavid Martínez BriseñoRolando Claure‐Del GranadoManuel Castillejos LópezJosé Carlos Rodríguez PérezNathaly Aguilera VasquezRafael Velázquez‐CruzGraciela Hernández Silva2026-03-222026-03-22202410.1186/s41479-024-00140-0https://doi.org/10.1186/s41479-024-00140-0https://andeanlibrary.org/handle/123456789/46603Citaciones: 2enCreatinineBlood urea nitrogenCoronavirus disease 2019 (COVID-19)Urea nitrogenPiInternal medicineNitrogenUreaSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)2019-20 coronavirus outbreakClinical implications of persistently increased blood urea nitrogen/serum creatinine ratio (PI-BUN/Cr) in severe COVID-19 patientsarticle