Tests | Contents | Patient status |
---|---|---|
General laboratory tests | Â | Â |
CBC, hepatic and renal function, coagulation function, etc. | Hb, WBC, PLT, ALT, AST, ALB, TBIL, LDH, UREA, CREA, BUN, PT, TT, APTT, etc. | For all patients. |
Inflammatory indicators D-dimer, CRP, procalcitonin, serum ferritin, erythrocyte sedimentation rate, etc. Serum cytokines | IL-2, IL-4, IL-6, IL-10, IL-17, TNF-α, INF-γ, etc. | For SARS-CoV-2 confirmed patients to assess the degree of infection. |
Immune indicators Lymphocyte subsets | total T lymphocytes (CD3+), helper/inducer T lymphocytes (CD3+CD4+), suppressor/cytotoxic T lymphocytes (CD3+CD8+), B lymphocytes (CD3−CD19+), and natural killer cells (CD3−CD16+CD56+), etc. | For all patients to evaluate their immune status. |
Etiological/serological detection | Â | Â |
SARS-CoV-2 | nucleic acid and/or antigen detection | For all patients and repeated if necessary. |
HBV | HBV-DNA, HBsAg, HBsAb, etc. | For all patients. |
Other respiratory viruses | nucleic acid, antigen, or antibody detection (including influenza A or B, RSV, parainfluenza viruses, adenovirus, enterovirus, rhinovirus, etc.) | When a respiratory tract co-infection is suspected. Note: It is difficult to distinguish COVID-19 from other respiratory virus infections based on symptoms alone. |
Sputum cultures | Â | The presence of sputum expectoration. |
G/GM test | Â | For patients with high-risk factors for fungal infection. |
mNGS | Â | Optional. An unbiased technology to detect a variety of pathogenic microorganisms. |
bronchoalveolar lavage fluid through a bronchoscope | SARS-CoV-2 nucleic acid | Advisable if chest CT imaging suggests residual shadow. |
Imaging | Â | Â |
Chest CT scans | Â | For SARS-CoV-2 confirmed patients with pneumonia. |
Others | Â | If other infection or organ dysfunction is suspected, the appropriate examinations can be performed. |