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Cutaneous Diphtheria Diagnosis

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Questions and Answers

What is the recommended dose of penicillin G for a patient weighing more than 10 kg?

600,000 IU/day (correct)

400,000 IU/day

300,000 IU/day

200,000 IU/day

What is the purpose of hypersensitivity testing before administering diphtheria antitoxin?

To determine the dosage of antitoxin

To check for unbound toxin

To identify the type of diphtheria

To prevent an allergic reaction (correct)

What is the recommended duration of antibiotic therapy for diphtheria?

10 days

14 days (correct)

7 days

21 days

What is the recommended dose of diphtheria antitoxin for laryngeal/pharyngeal diphtheria lasting less than 48 hours?

20,000–40,000 units IV Signup and view all the answers

What is the purpose of post-exposure prophylaxis for close contacts of a patient with diphtheria?

To prevent the contact from developing diphtheria Signup and view all the answers

What is the recommended duration of medical surveillance for contacts of a patient with diphtheria?

7 days Signup and view all the answers

What is the primary mode of transmission of cutaneous diphtheria?

Direct inoculation of C. diphtheriae into the skin Signup and view all the answers

What is the characteristic appearance of C. diphtheriae on cystine-tellurite agar?

Black colonies Signup and view all the answers

What is the purpose of the Elek test in diagnosing diphtheria?

To identify whether the strain is toxigenic Signup and view all the answers

What is the main reason for isolating patients suspected of having diphtheria?

To prevent the spread of the disease Signup and view all the answers

What is the characteristic feature of C. diphtheriae on microscopic examination?

Multiple C. diphtheriae clustered in angular arrangements Signup and view all the answers

What is the purpose of conducting multiple ECGs in patients with diphtheria?

To detect the presence of myocarditis Signup and view all the answers