Table 1.

Reactions to beta-lactams

	Percentage of patients
Dermatologic
Rash	100
Pruritus	28
Hives	32
Pustular rash	1
Angioedema
Oropharyngeal/facial	20
Other	16
Anaphylaxis	2
Gastrointestinal	10
Respiratory	11
Cardiovascular
Lightheaded	3
Tachycardia	1
Peripheral paraesthesias	2
Change in mental status	3
Pallor	1
Change in temperature sensation	2
Other	15
Delayed	21
Not known by patient	39
Not mentioned in chart	17