Did you have your urinalysis at the same time as your blood draw?
What time of day was it taken? My guess is early AM, by a few of your markers. I could be wrong tho.
protein intake prior to your labs, as well, total protein intake?
Any prescription meds?
What's your normal fluid intake like and how many times per day do you urinate? Do you feel like you empty your bladder completely?
How's your sleep? Any reason to believe you may have OSA (sleep apnea)?
I'll add this
If your urinalysis was done at the same time as your blood draw.
I can tell you right now, you was not severely dehydrated, nor was you even moderately dehydrated. Insufficiently hydrated, I believe so.
Your urinalysis is the tell-tell indicator of this. As well your Albumin and Total protein levels. Yes your HH, BUN, Creatinine and their ratio is a helpful diagnostic tool. Yet it's not always the only accurate and specifics due to protein intake and muscle tissue break down.
You have to take other markers into account.
If you was dehydrated your specific gravity would be high- yours is 1.012. Severely dehydrated is seen in >1.035
Your urine appearance is clear, with dehydration it's cloudy.
Your pH is 6.5, this is normal. With dehydration you'd be more acidic at around 4 +/-.
Your Ketones are negative. You'd show traces of Ketones if you was severely dehydrated.
Both Albumin and Protein are what's considered an acute phase reactant. What this means, is if there's a sudden change in the volume of plasma water and a change in the concentration, this shifts these proteins accordingly, in-which would shift your serum osmolality. Incidentally, you didn't have a serum osmolality pulled. With certainty, it would be normal, by these other markers.
On your blood test, your Albumin was at 4.6 g/DL. Moderately to severe dehydration you'd see an Albumin level of >5. The same can be said about your Protein. Neither your Total Protein nor your Albumin was elevated, which signifies dehydration.
Your k+ is normal, with dehydration as gotgame pointed out this would shift upwards. Same with your Na.
With your Na, I would suspect that as I asked, your water intake is to high pushing out too much Na. I'm going off of assumption, which I don't like to do. Yet this seems to be the obvious.
Again, you may have been insufficiently hydrated. Most of the time hardly anyone if properly hydrated.