ELISA

When a positive result occurs in an ELISA for Hashimoto's thyroiditis, this means:

• a bacteria is present

• an antibody against thyroid cells is present

• an antigen is present

• an enzyme is present

Which type of ELISA is this?

• Direct

• Indirect

• Sandwich

Which type of ELISA is this?

• Direct

• Indirect

• Sandwich

Why is a positive and negative control necessary in the setup of ELISA?

• positive controls are equal to negative controls 
• ELISA is subject to errors; if controls fail the results are untrustworthy
• ELISA is a well run test that typically does not need controls
• negative and positive controls are needed to exclude all results

From what cells do antibodies originate?

• b cells
• t cells 
• prison cells
• red blood cells

ELISA stands for

• Enzyme linked immune system absorbance

• Enzyme linked immunosorbent assay

• Enzyme linked ink assay

• Enzyme lined immediate assay

In an ELISA assay, ________ and ________ are added to facilitate a color change.

• antibodies and antigens
• primary antibodies and secondary antibodies
• enzymes and substrates
• antigen and enzymes

What type of ELISA is this?

• Direct

• Sandwich

• Indirect