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Cephalosporins Quiz

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Questions and Answers

What percentage of patients allergic to penicillins are also allergic to cephalosporins?

30-40%

20-30%

4-15% (correct)

1-4%

Why are penicillins and cephalosporins not supposed to be used with bacteriostatic agents?

They lose their antibiotic activity

They become toxic to the body

They may cause allergic reactions

They may antagonize the effects of each other (correct)

Why can cephalosporins be used with some patients allergic to penicillins?

Cephalosporins have a different mode of action than penicillins (correct)

The allergic reactions to penicillins are usually mild

Cephalosporins do not contain beta-lactam rings

Cephalosporins have lower antigenic potential than penicillins

What is the scientific rationale for antibiotic prophylaxis in dentistry?

To eliminate or reduce transient bacteraemia caused by invasive dental procedures Signup and view all the answers

What is the main concern addressed by antibiotic prophylaxis in dentistry?

Infective endocarditis Signup and view all the answers

What is the term used for infection in a confined region from which pathogens travel to other regions of the body?

Focal infection Signup and view all the answers

Study Notes

Antibiotic Allergies and Interactions

Approximately 10% of patients allergic to penicillins are also allergic to cephalosporins.
Penicillins and cephalosporins should not be used with bacteriostatic agents, as they can interfere with the bactericidal effects of these antibiotics.

Cephalosporins and Penicillin Allergies

Cephalosporins can be used with some patients allergic to penicillins, as they have a different side chain and are less likely to cross-react.

Antibiotic Prophylaxis in Dentistry

The scientific rationale for antibiotic prophylaxis in dentistry is to prevent bacterial endocarditis and other infections in susceptible patients.
The main concern addressed by antibiotic prophylaxis in dentistry is the risk of infection, particularly in patients with pre-existing heart conditions, prosthetic joints, or compromised immune systems.

Infection Types

The term used to describe infection in a confined region from which pathogens travel to other regions of the body is metastatic infection.

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Description

Test your knowledge of antibiotics with this quiz on cephalosporins. Learn about their usage, cross-reactivity with penicillins, and interactions with bacteriostatic agents.