Tagamet and Zantac are examples of
a. H1-receptor antagonists.
b. H2-receptor antagonists.
c. H3-receptor antagonists.
d. anticholinergics.
Question 2
A wheal and flare reaction is characterized by which of the following? 1. Headache 2. Welt formation 3. Local redness 4. Fever 5. Local swelling
a. 5 only
b. 1, 2, and 4 only
c. 2, 3, and 5 only
d. 1, 2, 3, 4, and 5