I have a chest ct scan and it shows a 1.4 cm low attenuation nodule. should i be worried?

CT chest: You need to discuss with your physician . I am sure they will discuss this with you. Modules can be anything from being benign to cancerous . Unless the CT is put in a clinical context, it is difficult to answer this question with certainty.

Follow up, not worry: Nodules in the chest are common and most often benign. Do not worry but make sure you get the follow up recommended by your doctor.