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Understanding Cancer Blood Tests: Types, Accuracy & Benefits

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In the evolving world of healthcare, blood tests for cancer are emerging as powerful tools for early detection, monitoring, and treatment planning. Unlike traditional diagnostic methods such as imaging or biopsies, blood-based testing offers a less invasive and often quicker way to gather vital health insights. 🔬 What Are Cancer Blood Tests? Cancer blood tests analyze a patient’s blood for biomarkers—substances made by cancer cells or by the body in response to cancer. These may include proteins, cell fragments, or genetic material like DNA and RNA. These tests can detect cancer at an early stage, monitor how well treatment is working, or even help predict if cancer will return. 🧪 Common Types of Blood Tests for Cancer Complete Blood Count (CBC): Detects abnormalities in blood cells that could signal blood cancers like leukemia or lymphoma. Tumor Marker Tests: Measures substances like PSA (prostate cancer), CA-125 (ovarian cancer), and CEA (colorectal cancer). Elevated levels can in...