ACE2	Angiotensin-converting enzyme 2
ACTT	Adaptive COVID-19 Treatment Trial
aPTT	activated partial thromboplastin time
ARDS	acute respiratory distress syndrome
BMI	body mass index
COVID-19	coronavirus disease 2019
CRP	C reactive protein
CT	computed tomography
EPIC-HR trial	Evaluation of Protease Inhibition for COVID-19 in High-Risk Patients
FDA	Food and Drug Administration
HFNC	high flow nasal cannula
ICU	intensive care unit
Ig G1	immunoglobulin G1
IL-6	interleukin 6
IL-6R	interleukin 6 receptor
IMV	invasive mechanical ventilation
LDH	lactate dehydrogenase
LMWH	low-molecular weight heparin
mAB	monoclonal antibodies
MERS	Middle East respiratory syndrome
mIL-6R	membrane-bound interleukin-6 receptor
mMRC Dyspnea Scale	Modified Medical Research Council Dyspnea Scale
NIV	non-invasive ventilation
PaO2	Partial pressure of oxygen
PaO2/FIO2	The ratio of arterial oxygen partial pressure (PaO2 in mmHg) to fractional inspired oxygen
PCR	polymerase chain reaction
R	Remdesivir
RR	respiratory rate
RT	Remdesivir plus Tocilizumab
SARS	severe acute respiratory syndrome
SARS-CoV	severe acute respiratory syndrome coronavirus
SARS-CoV-2	severe acute respiratory syndrome coronavirus 2
sIL-6R	soluble interleukin-6 receptor
SpO2	peripheral oxygen saturation
T	Tocilizumab
UFH	unfractionated heparin
VOC	Variants of concern