Table 2. Laboratory test results of the patient.

COVID-19: coronavirus disease 2019; IgM: immunoglobulin M; IgG: immunoglobulin G; SARS: severe acute respiratory syndrome; RT-PCR: reverse transcription-polymerase chain reaction; COI: cut-off index

Test	Value	Units	Referential values
Total and fractionated protein	8.56	g/dL	6.1-7.9
Albumin	5.1	g/dL	3.5-4.8
Globulin	3.39	g/dL	2.6-3.1
Lactic dehydrogenase	307	U/L	135-225
D-dimer	1.57	µg/ml	0.06-0.70
Ferritin	139.50	ng/ml	20-200
Vitamin D (25-hydroxyvitamin D)	115.60	ng/ml	20-160
T.qualitative COVID-19	IgG (+)
Dosage quantitative IgM COVID-19	0	COI	≥1
Dosage quantitative IgG COVID-19	62.5	COI	≥1
SARS-coronavirus RT-PCR (respiratory)	Negative
PCR influenza	Negative