Segmentation by type categorises the Cardiac Marker Rapid Test market into distinct biomarker families, each influencing overall size through clinical relevance and assay adoption rates. Troponin I and Troponin T assays together command the largest portion, exceeding 60 % of volume, because of their superior specificity for myocardial injury and guideline endorsement across acute care pathways. CK‑MB tests, although superseded by troponins, retain a 15 % niche in regions with legacy protocols or limited assay availability. Myoglobin occupies roughly 10 % of the market, valued for its early rise post‑ischemia despite lower specificity, thus serving as an adjunct in rapid rule‑out algorithms. BNP and NT‑proBNP rapid tests comprise the remaining 15 %, primarily employed in heart‑failure assessment rather than acute coronary syndromes, expanding the market’s reach into chronic cardiac management. This type‑based taxonomy clarifies how biomarker selection aligns with clinical pathways, directly shaping procurement volumes and pricing dynamics.