Table 5 shows the association of laboratory tests with COVID-19, and those that showed significance were: hemoglobin (p = 0.003), Pro BNP and aspartate aminotransferase (p = 0.001), erythrocyte sedimentation rate (0.032), C reactive protein (p = 0.011), troponin, international norms ratio, patient/control ratio, fibrinogen, ferritin, D dimer, triglycerides, urea, creatinine, alanine aminotransferase, total, direct and indirect bilirubin, creatine phosphokinase, CKMB, lactate dehydrogenase, sodium, potassium, calcium, magnesium, albumin and blood culture, all with p = 0.000. This evidence concerns the gene GPT and COVID-19.