Diagnostic tool commonly used in the biomedical model for lung cancer?

• A. CT scans
• B. Tobacco tax
• C. Smoke free laws
• D. Plain packaging

Answer: (A)

Imaging to identify lung tumors is a key part of diagnosing lung cancer in the biomedical model. Computed tomography provides detailed cross‑sectional images of the chest, letting clinicians detect nodules that may be missed on a regular X‑ray, assess their size and exact location, and determine how they relate to surrounding tissues. This information is crucial for planning biopsies, guiding treatment, and staging the cancer by evaluating lymph nodes and possible metastases. It’s a direct, biological means of confirming disease and guiding management.

Public health measures like tobacco taxation, smoke‑free laws, and plain packaging aim to reduce risk and prevent disease at a population level; they are not diagnostic tools.