I think the answer is C butter
Answer:
Common tests & procedures
X-ray: X-ray of chest is taken to identify the presence of tumor.
CT scan: CT scan of the lungs is performed to identify the location and size of the tumor mass.
Magnetic resonance imaging (MRI): MRI of the lungs can detect the severity and spread of cancer cells.
Positron emission tomography (PET): To observe the function of lungs and its tissues.
Sputum cytology: Sputum tests may be performed in certain cases to look for cancerous cells.
Biopsy: A small sample of the lung tumor cells is obtained to determine if they are cancerous.
It takes about three to six months for most lung cancers to double their size. Therefore, it could take several years for a typical lung cancer to reach a size at which it could be diagnosed on a chest X-ray.
Explanation:
Answer:
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Nicotine is With the advent of nicotine replacement therapy, the consumption of the nicotine is on the rise. Nicotine is considered to be a safer alternative of tobacco. The IARC monograph has not included nicotine as a carcinogen. However there are various studies which show otherwise. We undertook this review to specifically evaluate the effects of nicotine on the various organ systems. A computer aided search of the Medline and PubMed database was done using a combination of the keywords. All the animal and human studies investigating only the role of nicotine were included. Nicotine poses several health hazards. There is an increased risk of cardiovascular, respiratory, gastrointestinal disorders. There is decreased immune response and it also poses ill impacts on the reproductive health. It affects the cell proliferation, oxidative stress, apoptosis, DNA mutation by various mechanisms which leads to cancer. It also affects the tumor proliferation and metastasis and causes resistance to chemo and radio therapeutic agents. The use of nicotine needs regulation. The sale of nicotine should be under supervision of trained medical personnel.
Healthy blood vessels open