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Note: Symptoms usually do not develop until 7 - 21 days after the first dose of antiserum or exposure to the medication. However, some people may develop symptoms in 1 - 3 days if they have previously been exposed to the substance.
The lymph nodes may be enlarged and tender to the touch. The urine may contain blood or protein. Blood tests may show immune complexes or signs of blood vessel inflammation.
Salmon JE. Mechanisms of immune mediated tissue injury. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 44.
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