Transferrin is weakly positive and requires further testing before lung nodule surgery.
Transferrin is an iron-containing protein in plasma that is responsible for transporting iron to red blood cells to synthesize hemoglobin, which is mainly found in plasma.
If transferrin is weakly positive in urine test, kidney damage is considered, most of the symptoms are serious, further examination is needed to clarify the diagnosis and active treatment before lung nodule surgery.
If transferrin is weakly positive in fecal examination, gastrointestinal bleeding should be considered, and it is recommended to further improve gastroenteroscopy to clarify the site and cause of bleeding, and then perform pulmonary nodule surgery after comprehensive treatment.
Regardless of which test is found to be weakly positive for transferrin, it is necessary to suspend pulmonary nodule surgery, further examination to clarify the diagnosis, and active treatment.