Table 2 Grading of anaphylaxis according to severity of clinical symptoms. Mueller 1966

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