Hi thanks for the question.
Prominent bronchovascular marking in chest X Ray
is sometime a normal finding but usually indicates Bronchitis
that is inflammation of bronchi Bronchi are the conducting pathways of lung.Prominent bronchovascular marking also occur if there is increased pressure in pulmonary vesscels.Both conditions are treatable.You can repeat chest X Ray after treatment of bronchitis (if you have) by a physician.I don't think this will render you unfit for job .
Hope this answers your question.