Do you know the BUN level (They often correlate)? If not, ok.

You might need to have the test redone and make sure it isn't a fluke. Creatinine levels are related to kidney function, so if it is a valid test result, then further investigation could be required to see if there is other stuff going on impacting kidney function. Much would depend on your medical history such as if you're diabetic or are on certain medications. High levels of protein in the diet or even intense exercise can elevate creatinine levels. Did your doctor suggest you make any changes for now? In the meantime, keep a close eye on your ankles and let your doc know if you see any signs of swelling.

I had an allergic reaction once to a combo of meds which put me in kidney failure...proteinuria...and my ankles were so swollen that they jiggled when I walked. They put me on diuretics and within 2 days, I lost 8 lbs! Fortunately we stopped the meds and it resolved on its own.

DH has low kidney function and is monitored on an annual basis by a renal doctor. Fortunately for him, his blood work may be screwy, but it's stable and has been for years. So there's nothing to do but monitor, and be aware of the low kidney function when he's being prescribed meds of any sort.

Do you take any anti-inflammatory drugs, even over the counter NSAIDs? I was taking them, both prescription and then Aleve, after knee surgery a few years back and it affected my results in a blood test. I don’t recall the number but it was just barely above what is considered normal, but my family doc noticed it. I cut back on the Aleve, had the test repeated about 6 months later, and my levels were normal.

I was reading that not drinking enough water could cause the levels to go up. I must admit I’m not a water drinker.

Exactly. But BUN would also be affected. So are both out of line? Could just be dehydrated

Is there a reason you wouldn't speak to your doctor about this and get their advice?

Elmer I don’t have an appointment with him until my next blood test in late October. Just found out today about this from blood test yesterday

Good sources of information.

https://www.webmd.com/a-to-z-guides/creatinine-and-creatinine-clearance-blood-tests#1

https://www.mayoclinic.org/tests-procedures/creatinine-test/about/pac-20384646

https://www.medicinenet.com/creatinine_blood_test/article.htm

I would think the doctor would talk to you if you have some abnormal blood test results. The PA calls me if the blood tests are normal and I don't need to talk to the doc.

A follow-up with patients concerning test results, whether by the doc or someone in the office. should be the normal practice in every instance. Probably like many other people experience, I get an email to check the online comprehensive patient record system. There I see the results and a message from the doc with comments about the various tests.

Contact them and ask for a commentary on the findings and next steps, if any.

Good luck.

Call and ask if fasting is required for the next blood draw. If it is required and no one mentioned it to you, that could skew the results.

Would avoid being dehydrated for blood draw for creatinine, drink plenty of water.