Thank you for sending.
Kidney function can fluctuate in short periods of time, particularly related to medication use. I notice from the lab report that your husband has a low potassium. This could be indicative of him taking a diuretic such as hydrochlorothiazide for example. In that case, blood pressure and kidney function can fluctuate with use of this medication and before becoming too alarmed, I would repeat the creatinine to see if it is a persistent change (as an aside, in order to calculate your husband's kidney function more accurately can you tell me whether he is black?). I do also note that there is protein in the urine which if persistent does, by itself, indicate that he does have a form of chronic kidney disease.
It would be very helpful if you provided a list of his medication below. It also appears as though he has slightly elevated blood sugar. Is he known to be diabetic and is he on medication for that?
A referral to a nephrologist would be wise, but at a minimum I recommend a repeat of his urinary protein and kidney function as well as an abdominal ultrasound.
Dr. Jordan Weinstein