Procalcitonin (PCT) is the peptide precursor of the hormone calcitonin, normally produced in the thyroid. In systemic bacterial infections or sepsis, PCT levels rise rapidly, making it a reliable marker for infection severity and origin.

The Biotime PCT test utilizes fluorescent immunoassay technology to quantify PCT in 15 minutes, providing rapid results for timely clinical decision-making. Early detection of elevated PCT helps guide antibiotic therapy, prevent misuse, and reduce the risk of antibiotic resistance. The test is clinically relevant in ICU, emergency care, and general hospital settings, offering a correlation between PCT levels and disease severity in septic patients.