Lab- ASO, CRP, RF

Question 0

Other tests for detection of Group A strep

Answer 0

Anti dnase B

Streptozyme testing

Question 1

ASO

Answer 1

Antistreptolysin o
Detection of Group A streptococcus bodies
Measures streptolysin O
Expressed in todd units or milliinternational units
320 todd units per child
240 per adult

Question 2

Diseases associated with ANTI-STREPTOLYSIN O

Question 3

Bacterial strain associated with Streptolysin

Answer 3

Streptococcus pyogenes

Question 4

Antibody mediated reaction that is caused by a damaging sequela of Streptoccocus Group A

Deposition of antibodies in glomerulus

Answer 4

Poststreptococcal glomerulonephritis

Question 5

Rheumatoid factor latex test

Answer 5

Attacks the fc portion of the IgG
An auto antibody
Nonspecific, and can be detected also in SLE and Sjorgen’s syndrome
Coreacts with CRP in syphylis, hiv, influenza and other malignancies

Question 6

Rheumatoid arthritis

Answer 6

Type 3 hypersensitivity reaction

Binding of IGM to IGG forming a complex activating the classical complement cascade