Table 2.

Grading of anaphylaxis according to severity of clinical symptoms. Mueller 1966

Grade	Signs and Symptoms
1 Slight general reaction	Generalized urticaria, itching, malaise and anxiety
2 General reaction	Any of the above plus two or more of following: generalized edema; constriction in chest; wheezing; abdominal pain; nausea and vomiting; and dizziness
3 Severe general reaction	Any of the above plus two or more of following: dyspnea; dysphagia; hoarseness or thickened speech; confusion; and feeling of impending disaster
4 Shock reaction	Any of the above plus two or more of following: cyanosis; fall in blood pressure; collapse incontinence; and unconsciousness