Do lung nodules require fasting?

Lung nodule examination should be judged according to the specific situation whether fasting is required.

Lung nodules are round or irregular lesions with a diameter of ≤3 cm in the lung. Generally, they are related to infection, inflammatory lesions, tumors, etc. Patients are mainly examined by chest X-ray examination, chest CT scan, bronchoscopy, puncture biopsy, etc. Generally, fasting is not required, and the examination results are usually not affected after eating.

However, if patients need gastroscopy and liver function test at the same time, they generally need to maintain fasting state to prevent affecting the examination results.