Which type of antibiotic carries the highest risk of an allergic response?
1. Tetracyclines
2. Aminoglycosides
3. Cephalosporins
4. Penicillins
Correct Answer: 4
Rationale 1: The tetracyclines do not carry the greatest risk for allergic response.
Rationale 2: The aminoglycosides do not carry the greatest risk for allergic response.
Rationale 3: The cephalosporins do not carry the greatest risk for allergic response.
Rationale 4: The penicillins are the group of antibiotics that have the highest incidence of allergic reactions.
Global Rationale: Although not common, serious hypersensitivity reactions to antibiotics may be fatal. The penicillins are the class of antibacterials that have the highest incidence of allergic reactions: Between 0.7% and 10% of all patients who receive these drugs exhibit some degree of hypersensitivity.
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