A child has been hospitalized with a severe case of impetigo contagiosa. What antibiotic will the nurse expect to be prescribed?
1. Dicloxacillin (Pathocil)
2. Rifampin (Rifadin)
3. Sulfamethoxazole and trimethoprim (Bactrim)
4. Metronidazole (Flagyl)
1
Rationale:
1. A systemic antibiotic will be given for severe impetigo because it is a bacterial infection. Dicloxacillin is used in treatment of skin and soft tissue infections. It is specific for treating staphylococcal infections.
2. Rifampin is an antitubercular agent. Dicloxacillin is used to treat skin and soft tissue infections, and is specific for treating staphylococcal infections.
3. Sulfamethoxazole and trimethoprim are used as prophylaxis against Pneumocystis carinii pneumonia (PCP), and therefore would not be effective in this case. Dicloxacillin is used to treat skin and soft-tissue infections, and is specific for treating staphylococcal infections.
4. Metronidazole is used to treat anaerobic and protozoic infections, and would not be effective against staphylococcal skin and soft tissue infections. Dicloxacillin would be the better choice.
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