1. EIA (Enzyme Immunoassay)
3-5. Unknown (antigen), Antibody (enzyme linked), substrate
6-8. Sandwich ELISA, Competitive ELISA, Indirect ELISA
The doctor might order a test to determine the calcium level in the womans body including the hormones that regulate the calcium.
ELISA is recommended method in determination of hormone levels. Because its a direct measurement, and a very specific method.