Table 1 Main laboratory findings in the neonate.

From: Transplacental transmission of SARS-CoV-2 infection

 DOL1DOL2DOL3DOL5
Blood cell counts
 WBC/L10.32 × 1096.97 × 109  
 RBC/L4.54 × 10124.84 × 1012  
 Hb (g/dL)13.914,7  
 Hematocrit (%)41.641.4  
 Platelets/L339 × 109319 × 109  
 Lymphocytes/L4.39 × 1093.05 × 109  
 Neutrophils/L3.97 × 1092.78 × 109  
 Reticulocytes (%)3.043.39  
Blood gas analyses
 pH7.277.387.34 
 pCO2 (mmHg)414147 
 pO2 (mmHg)414030 
 BE (mmol/L)−7.8−1.4−1 
 Lactate (mmol/L)71.31.5 
 Na (mmol/L)135141141 
 K (mmol/L)6.35.24.3 
 Cl (mmol/L)109110110 
 Ca++ (mmol/L)1.081.331.38 
Blood biochemistry
 CRP (mg/L)<5<5  
 PCT (µg/L)0.950.61  
 Cord PCT (µg/L)0.19   
 Total serum bilirubin (µmol/L) 106  
 Conjugated bilirubin (µmol/L) 0  
 Alkaline phosphatase (IU/L) 133  
 AST (IU/L) 38  
 ALT (IU/L) 9  
 γ-GT (IU/L) 290  
 Troponine I (ng/L) 43  
CSF analyses
 CSF proteins (g/L)  1.491.24
 CSF leukocytes/mm3  30011
 CSF glucose (mmol/L)  2.92.4
  1. All samples have been obtained by venous puncture, except blood gas analyses that have been performed on arterialized capillary blood samples obtained by warmed heel prick. All measurements have been performed with certified analytical micro-methods dedicated to the NICU and subjected to periodic quality controls. All results are normal for the neonatal reference ranges, expect for CSF proteins and leukocytes on DOL3; glycorrhachia was always similar to blood glucose measured at the same time.
  2. γ-GT, gamma-glutamyl transferase; ALT, alanine aminotransferase; AST, aspartate transaminase; BE, base excess; CRP, C-reactive protein; CSF, cerebro-spinal fluid; DOL, day of life; PCT, procalcitonin; RBC, red blood cells; WBC, white blood cells.