Version May 2024
| Technical (potentially correctable) |
| Tuberculin material: |
| Improper storage (exposure to light or heat) |
| Contamination, improper dilution, or chemical denaturation |
| Administration: |
| Injection of too little tuberculin or too deeply (should be intradermal) |
| Administration more than 20 minutes after drawing up into the syringe |
| Reading: |
| Inexperienced or biased reader |
| Error in recording |
| Biologic (not correctable) |
| Infections: |
| Active tuberculosis (especially if advanced) |
| Other bacterial infection (typhoid fever, brucellosis, typhus, leprosy, pertussis) |
| HIV infection (especially if CD4 count <200) |
| Other viral infection (measles, mumps, varicella) |
| Fungal infection (South American blastomycosis) |
| Recent live-virus vaccination (measles, mumps, polio) |
| Immunosuppressive drugs (corticosteroids, tumor necrosis factor inhibitors, and others) |
| Metabolic disease (chronic renal failure, severe malnutrition, stress [surgery, burns]) |
| Diseases of lymphoid organs (lymphoma, chronic lymphocytic leukemia, sarcoidosis) |
| Age (infants <6 months, older adults) |
آیا می خواهید مدیلیب را به صفحه اصلی خود اضافه کنید؟
