An initial titer of 4 followed by a subsequent titer of 16 for the same patient, drawn 2 weeks later, is indicative of which of the following?

This ANA pattern is most strongly associated with: 

The main function of CD8+ T cells is:

Which cell type is primarily responsible for antibody production?

Explain the purpose of performing a titer and give an example of when titers are clinically important.

Which test detects patient antibodies by labeling antigen with enzyme?

Name the ANA pattern most strongly associated with CREST syndrome.

The function of the complement system include(s) which of the following?

What laboratory findings are typically seen in multiple myeloma on serum protein electrophoresis (SPE)?

EC (2pts) The perimeter of a rectangle is 132 feet.  The length of the rectangle is two feet more than three times the width.   Find the width of the rectangle.________ feet