Small nodule in lung, low sodium shown in blood testing

[EllaKline]

After a routine BMP, the results showed a sodium level of 128.  Doctor ordered follow-up BMPs which showed lower sodium levels, down to 125 and the most recent test showed an upswing to 132.  A CT scan was ordered and a small nodule was found in the lung.  Does the lower sodium level always indicate cancer?  Is it a good sign the sodium is on the way up?  I'm waiting to see a pulmonary dr next, but can't stop worrying and obsessing to the point I'm almost sick.  

[MrPresley]

FWIW my sodium level was 145 in March 2016 and 135 in March 2017, and had a 5mm nodule identified on low-dose CT (LDCT) screen in December 2016, with no change in status after a followup LDCT in March 2017.

I would recommend not worrying too much, the pulmonary doctor will provide you the information you need.