Tarjetas de este mazo (12)

• What does the ASO test detect?

  Antibodies to the streptolysin O enzyme produced by Group A Streptococcus (GAS).
  medical testing
• What indicates a recent streptococcal infection?

  The presence of antibodies to streptolysin O in the ASO test.
  medical infection
• What is the classic method for determining ASO titer?

  A hemolytic method based on the ability of antibodies to neutralize the hemolytic activity of streptolysin O.
  medical testing
• How is the ASO titer reported?

  As the reciprocal of the highest dilution demonstrating no hemolysis, in Todd units or international units.
  medical testing
• What is a moderately elevated ASO titer for adults?

  At least 240 Todd units.
  medical testing
• What is a moderately elevated ASO titer for children?

  At least 320 Todd units.
  medical testing
• What method is currently used for ASO testing?

  Nephelometric methods for rapid, quantitative measurement.
  medical testing
• What does the nephelometric method use as an antigen?

  Purified recombinant streptolysin.
  medical testing
• When do ASO titers typically increase after infection?

  Within 1 to 2 weeks after infection.
  medical infection
• When do ASO titers peak after initial symptoms?

  Between 3 to 6 weeks following initial symptoms.
  medical infection
• What percentage of acute rheumatic fever patients show an antibody response?

  About 85% within the initial period.
  medical infection
• Do ASO titers increase in individuals with skin infections?

  Typically, no, ASO titers usually do not increase in skin infections.
  medical infection