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Across 2. Preferred diagnostic test for evaluation of deep lymph nodes 4. A procedure that that removes plasma that contains components that cause disease. Produces hypotension and can cause citrate toxicity 6. Can be life threatening if untreated. Airway! 7. B and T Cells producing autoantibodies 8. A lab test that reliably predicts the body's level of infection or recovery 12. The process where certain cells engulf and digest microorganisms and/ or cellular debris 13. The elderly should always get this 15. Major negative effect of cell-mediated immunity 16. The most common type of childhood allergy 17. Life threatening allergic reaction 18. Used to treat seasonal allergies 19. Substances that can trigger a response by the immune system. 20. Antibodies 21. The cells found by pathologists in Hodgkin's disease

Down 1. Night sweats- Hodgkins 3. A tetanus antitoxin 4. Oncologic staging is more accurate with this test. Detects normal metabolic processes in a designated area. 5. Substance released by T cells that stimulates lymphocytes to attack an inflammation 9. What B-cell proliferation is dependent on 10. Basophils release this strong vasodilator in response to an allergen 11. Having an immune system that responds normally 14. The timeframe that blood should transfused within