Table 3.
Blood work
| Abbreviation of test name | Complete name of test | Use |
|---|---|---|
| CBC with diff | Complete blood count with differential | Underlying bacterial or viral etiology, WBC malignancy (leukemia or lymphoma) |
| CMP | Comprehensive metabolic panel | Kidney function, liver function, electrolyte and fluid balance |
| ESR | Erythrocyte sedimentation rate | Generalized inflammation |
| CRP | C-reactive protein | Inflammation |
| ANA | Antinuclear antibody | SLE or JIA |
| RF | Rheumatoid factor | RA |
| HLA-B27 | Human leukocyte antigen B27 | IBD (Crohn’s or ulcerative colitis), ankylosing spondylitis, reactive arthritis (Reiter’s), psoriatic arthritis, Behcet’s disease |
| FTA-ABS | Fluorescent treponemal antibody absorption | Syphilis (infected) |
| RPR and VDRL | Rapid plasma regain and venereal disease research laboratory | Syphilis (screening) |
| Lyme titers | Lyme disease | |
| ELISA | Enzyme-linked immunosorbent assay | Lyme disease |
| ACE | Angiotensin-converting enzyme | Sarcoidosis |
| Serum lysozyme | Serum lysozyme | Sarcoidosis |
| Quantiferon gold | Quantiferon gold | TB |
| PPD skin test | Purified protein derivative | TB |
| CXR | Chest X-ray | TB, sarcoidosis |