What is a primary use of immunoassay analyzers in diagnostics?

Immunoassay analyzers play a vital role in diagnostics primarily due to their ability to measure specific biomolecules, particularly hormones, antibodies, and antigens in a sample. This technology utilizes antigen-antibody interactions, which are highly specific, allowing for accurate quantification of hormone levels in the bloodstream.

Hormones, for example, are crucial indicators of various physiological states and can provide valuable insights into health conditions influencing growth, metabolism, reproductive functions, and more. By assessing hormone levels, healthcare providers can diagnose and monitor conditions such as diabetes (insulin), thyroid disorders (thyroid hormones), and reproductive issues (like LH and FSH).

The other options listed, while important in diagnostics, do not utilize immunoassay technology as their primary measurement technique. Blood glucose measurement typically relies on enzymatic assays, counting blood cells involves hematology analyzers, and evaluating urine pH is performed using pH meters or dipstick tests, all of which are distinctly different from the immunoassay method.