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Skin and Soft Tissue Infections Lab 9: Dermatitis

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Skin and Soft Tissue Infections Lab 9: Dermatitis

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Questions and Answers

Which test can be used to distinguish between Staphylococcus and Streptococcus species?

CAMP test

Mannitol salt agar culture

Bacitracin test

Coagulase test (correct)

What is the unique pigmentation of Staphylococcus species colonies when grown on blood agar?

Yellow

Green

Opaque white

Cream (correct)

Which Streptococcal species causes erysipelas?

S. agalactiae

S. epidermidis

S. pyogenes (correct)

S. pneumoniae

What is the causative agent of cellulitis that commonly breaches the epidermis through a cut or abrasion?

S. pyogenes Signup and view all the answers

Which test can be used to distinguish Bacitracin resistant S. agalactiae from Bacitracin sensitive S. pyogenes?

CAMP test Signup and view all the answers

Which of the following best describes dermatitis?

An inflammation of the skin characterized by redness, swelling, and pruritus Signup and view all the answers

What is the main component of the exudate found in abscesses?

White blood cells Signup and view all the answers

What is the surgical technique for collecting pus and abscess wall pieces?

Using a syringe and needle for aspiration and aseptic transfer to sterile specimen containers Signup and view all the answers

What should be done if sterile specimen containers are not available for transporting pus samples?

Keep the specimen in the syringe with the needle capped and transport it to the laboratory Signup and view all the answers

What type of cultures can be made from a single specimen collected from an abscess?

Both aerobic and anaerobic cultures Signup and view all the answers