In congenital syphilis

A 13-year-old child has visited her physician complaining of sore throat, lymphadenopathy, and extreme fatigue.  The physician strongly suspects infectious mononucleosis as causing the child’s symptoms.  A rapid screening test was performed and was negative.  What should the physician do?

When performing the RPR, we are testing for

Which of the following could cause a false positive RPR?

Which hepatitis antibody confers immunity against reinfection with hepatitis B virus?

An RPR card test performed on a spinal fluid sample was nonreactive.  The physician was skeptical and asked for a repeat test on the spinal fluid.  The RPR was reactive 1:1 dilution.  The result:

Long term or sequelae complications of S. pyogenes infection can include:

What type of antigen is used in the RPR card test?

The substance produced by group A strep that is responsible for causing the red rash seen in scarlet fever is:

The VDRL and RPR tests are