Unexplained elevation of erythrocyte sedimentation rate in a patient recovering from COVID-19: A case report

Table 1 Main results of routine blood test, inflammation parameters, and liver and renal function

Item/result	WBC (× 109/L)	NEUT (%)	LYM (× 109/L)	PCT (ng/mL)	IL6 (pg/mL)	ESR (mm/h)	CRP (mg/L)	CREA (umol/L)	UREA (mmol/L)	TBIL (umol/L)	ALT (U/L)	AST (U/L)
Result	3.57	53.5	1.29	0.06	35.65	22	43.58	103	4.6	17.3	9.73	38.45
Reference range	4-10	45-77	0.8-4	< 0.5	0-7	0-15	0-8	40-106	2.9-8.2	5.1-20	5-40	8-40

WBC: White blood cells; NEUT: Neutrophil granulocytes; LYM: Lymphocytotoxicity; PCT: Procalcitonin; IL-6: interleukin-6; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; CREA: Creatinine; TBIL: Total bilirubin; ALT: Alanine transaminase; AST: Aspartate aminotransferase.

Table 2 Main results of routine blood tests, inflammation parameters, and liver and renal function

Item/result	WBC (× 109/L)	NEUT (%)	LYM (× 109/L)	PCT (ng/mL)	IL6 (pg/mL)	ESR (mm/h)	CRP (mg/L)	CREA (umol/L)	UREA (mmol/L)	TBIL (umol/L)	ALT (U/L)	AST (U/L)
Results	2.27	54.8	0.73	0.1	14.2	102	16.69	89	3.1	10.2	46	43
Reference range	4-10	45-77	0.8-4	< 0.5	0-7	0-15	0-8	40-106	2.9-8.2	5.1-20	5-40	8-40

WBC: White blood cells; NEUT: Neutrophil granulocytes; LYM: Lymphocytotoxicity; PCT: Procalcitonin; IL-6: interleukin-6; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; CREA: Creatinine; TBIL: Total bilirubin; ALT: Alanine transaminase; AST: Aspartate aminotransferase.

Table 3 Results of examination related to erythrocyte sedimentation rate

Item	Result	Reference range
FT3 (ρmol/L)	5.52	3.28-6.47
FT4 (ρmol/L)	11.04	7.64-16.03
TSH (µIU/mL)	1.473	0.34-5.6
RF (U/mL)	10	0-20
ANCA	Negative	Negative
Hb (g/L)	134	110-150
AFP (ng/mL)	3.35	0-10.9
CA125 (U/mL)	5	0-35
CA19-9 (U/mL)	20	0-37
CEA (ng/mL)	1.3	0-5
Mp-IgM	Negative	Negative
TB-IgG	Negative	Negative
AFB	Negative	Negative
T-SPOT.TB	Negative	Negative
HBsAg (IU/mL)	0	0-0.05
HIV	Negative	Negative

TSH: Thyroid stimulating hormone; RF: Rheumatic diseases; ANCA: Autoimmune diseases; Hb: Hemoglobin; AFP: Alpha fetoprotein; CEA: Carcinoma embryonic antigen; HIV: Human immunodeficiency virus.

Table 4 Main results of routine blood tests, inflammation parameters, and liver and renal function

Item/result	WBC (× 109/L)	NEUT (%)	LYM (× 109/L)	PCT (ng/mL)	IL6 (pg/mL)	ESR (mm/h)	CRP (mg/L)	CREA (umol/L)	UREA (mmol/L)	TBIL (umol/L)	ALT (U/L)	AST (U/L)
Result	5	47.6	1.12	< 0.05	13.97	120	8.3	99	7.1	11.4	28	24
Reference range	4-10	45-77	0.8-4	< 0.5	0-7	0-15	0-8	40-106	2.9-8.2	5.1-20	5-40	8-40

WBC: White blood cells; NEUT: Neutrophil granulocytes; LYM: Lymphocytotoxicity; PCT: Procalcitonin; IL-6: interleukin-6; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; CREA: Creatinine; TBIL: Total bilirubin; ALT: Alanine transaminase; AST: Aspartate aminotransferase.