Bacterial Lymphadenitis and Staphylococci Infections

Lipoteichoic acid mediates adherence to pilli.

Streptokinase is an enzyme that depolymerizes DNA in exudate.

Streptolysins are oxygen labile and do not induce an immunogenic response.

Mycobacteria are rods that are easily stained by Gram stain.

Tuberculin skin test can differentiate between latent TB and active TB.

Biochemical testing for catalase can be used to identify colonies of mycobacteria.

Staphylococci are gram negative cocci arranged in grape like clusters.

Staphylococci are motile and spore forming.

Coagulase is an enzyme that coagulates plasma with fibrin deposition, making bacteria more susceptible to phagocytosis.

Group A streptococci grow on blood agar producing beta hemolysis.

M protein is a virulence factor found in Group A streptococci, aiding in serologic classification.

Laboratory diagnosis of bacterial lymphadenitis includes only culture on nutrient agar.

Toxins produced by Staphylococci include enterotoxins and exfoliative toxins.

Streptococci are not considered as causative organisms of bacterial lymphadenitis according to the text.

A Gram stain of aspirated tissue is used to evaluate viral etiologies.

Cats are not mentioned as a potential risk factor for developing lymphadenitis in the text.

An elevated WBC count in a CBC may indicate a non-infectious etiology according to the text.

Culture of aspirated tissue is used to determine the causative organism and its sensitivity to antibiotics.

Elevated ESR and CRP are specific indicators of inflammation according to the text.