Answer the following statement(s) true (T) or false (F)
1. A patient who is allergic to one type of dental anesthesia may be able to tolerate another type.
2. A patient usually experiences an allergic reaction on first exposure to the harmful antigen.
3. The time that elapses between exposure to an antigen and the onset of symptoms helps in determining the severity of the upcoming reaction.
4. The patient with a history of allergies to several things is a likely candidate for an allergic reaction in the dental office.
5. The main symptom of contact dermatitis is swelling.
1. True
2. False
3. True
4. True
5. False
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