Table 1

Laboratory analysis

Laboratory profile at admission
Reference ranges
White cell count (x109/L)11.194.80–10.90
Differental count
 Neutrophils (%)68.045–75
 Lymphocytes (%)4.020–50
 Eosinophils (%)4.00.0–5.0
 Bands (%)19.0
 Haemoglobin (g/L)137133–177
 Platelet count (x109/L)200150–400
 Alanine aminotransferase (units/L)1275–41
 Aspartate aminotransferase (units/L)365–40
 Bilirubin, total (mg/dL)1.90.0–1.2
 Bilirubin, direct (mg/dL)1.40.0–0.3
 Alkaline phosphatase (units/L)20640–130
 Gamma glutamyl transferase (units/L)2924–39
 Creatinine (mg/dL)0.880.70–1.30
 eGFR (mL/min/1.73 m2)>90>60
 Vitamin D, 25-OH (ng/mL)14.8>30.0
 Thyroid stimulating hormone (mIU/L)1.580.27–4.20
 Haemoglobin A1c (%)5.64.0–6.4
 Lactate, venous (mmol/L)2.10.5–1.6
 Prothrombin time (s)11.510–13
 Activated partial thromboplastin time (s)32.926.6–36.5
 Fibrinogen (mg/dL)1104250–490
 D-dimer (ng/mL)6090–229
 Serum ferritin (ng/mL)85830–400
 C reactive protein (mg/dL)13.720.00–0.49
 Erythrocyte sedimentation rate (mm)580–15
 Lactate dehydrogenase (units/L)233135–225
 Creatine kinase (units/L)17020–200
 Troponin-I (ng/mL)<0.010<0.010
 B-type natriuretic, N-terminal (pg/mL)1080–125
Autoimmune disease studies
 Antinuclear antibodyNegativeNegative
 Rheumatoid factor (IU/mL)17.10.0–14
 RNA polymerase III antibody (AU/mL)110–19
 Centromere antibody (AU/mL)00.0–40
 Topoisomerase I antibody; SCL-70 (AU/mL)00.0–40
 Protease-3 antibody (AU/mL)4.00.0–19
 Myeloperoxidase antibody (AU/mL)1.00.0–19
 SSA-52; Ro52 antibody (AU/mL)1.00.0–40
 SSA-50; Ro60 antibody (AU/mL)0.00.0–40
 SSB; La antibody (AU/mL)0.00.0–40
 Beta-2-microglobulin3.71.1–2.4
 C3 complement (mg/dL)14490–180
 C4 complement (mg/dL)2810–40
 Lupus anticoagulant screenNegativeNegative
 IgA (mg/dL)18770–400
 IgM (mg/dL)5940–230
 IgG (mg/dL)1047700–1600
Infectious disease studies
SARS-CoV-2 studies
 SARS-CoV-2 RT-PCRNot detectedNot detected
 SARS-CoV-2 nucleocapsid antibody ECLIA assayNegativeNegative
 SARS-CoV-2 spike antibody (units/mL)1186<0.8
Additional infectious disease studies
 Anaplasma phagocytophilum IgG (titre)<1:64<1:64
Ehrlichia chaffeensis IgG (titre)<1:64<1:64
Babesia microti IgG (titre)<1:64<1:64
 Lyme antibody EIANegativeNegative
 Rapid plasma reagent screenNon-reactiveNon-reactive
Rickettsia rickettsii IgG (titre)<1:64<1:64
Rickettsia rickettsii IgM (titre)<1:64<1:64
 Rapid plasma reagent
  CMV IgG EIAPositiveNegative
  CMV IgM (AU/mL)<8.0<29.9
  EBV VCA IgG (units/mL)>7500.0–21.9
  EBV VCA IgM (units/mL)<10.00.0–43.9
  Heterophile antibody assayNegativeNegative
  HIV 1/2 antibody & p24 antigen screen (fourth generation)Non-reactiveNon-reactive
  Quantiferon gold IGRANegativeNegative
  Hepatitis B surface antibody (mIU/mL)72.0<8.0
  Hepatitis B surface antigen EIANon-reactiveNon-reactive
  Hepatitis C antibodyNon-reactiveNon-reactive
 Blood cultureNo growthNo growth
 Urine cultureNo growthNo growth