normal range of kft - #18070
I am trying to figure out what the normal range of kft is because I just got some blood test results back and I'm really confused. A few weeks ago, I started feeling pretty drained and had these weird pains in my lower back. My doc ordered a bunch of tests, including the kft. I don’t even know what kft stands for exactly, but he said it's important for kidney function or something. Anyway, my results came back, and the levels seemed a bit off, but I don’t really get how they compare to the normal range of kft. Like, I read online that there’s a normal range of kft, but it seems to vary from site to site, and now I’m just more confused. If my levels are outside this "normal range of kft," what does that mean? Should I be freaking out or is this something that can be managed easily? My doctor mentioned a follow-up appointment, but I wish I could understand this better before then. I really don’t like waiting and worrying, and I know the normal range of kft can tell us a lot, but what should I actually be looking for?
100% Anonymously
No sign-up needed.

Doctors' responses
The term “KFT” stands for Kidney Function Test, which typically measures several parameters to assess how well your kidneys are working. It’s not about a single value but a combination of test results that include serum creatinine, blood urea nitrogen (BUN), and sometimes electrolytes and other markers. The normal ranges can vary a bit between different labs due to differences in equipment and methods, but generally, for adults, you might expect: serum creatinine levels to be around 0.6 - 1.3 mg/dL, BUN levels usually fall in the range of 7-20 mg/dL, and estimated glomerular filtration rate (eGFR) should ideally be over 90 mL/min/1.73 m², indicating normal kidney function. If any of these tests come back outside their respective normal range, it could be indicative of a kidney issue, ranging from dehydration to possible kidney disease. However, the emphasis should be on what’s normal for you and how these values change over time, which is why follow-up’s critical. If your results are a bit off, it’s not always an immediate cause for alarm. For example, dehydration can temporarily elevate BUN and creatinine levels, and things like diet, medications, and even muscle mass can also affect these values. Between now and your follow-up, stay hydrated, avoid over-the-counter nephrotoxic medications unless otherwise advised by your doc, and keep an eye on any other symptoms like changes in urination or blood pressure. Red flags you shouldn’t ignore include severe fatigue, significant changes in urination, or persistent pain. The follow-up appointment will provide more personalized insights into what your specific results mean and the best steps forward. If the tests do suggest any renal impairment, your doctor will look at the trend of those values and any symptoms you have to tailor a management plan specifically for you.
100% Anonymously
Get expert answers anytime, completely confidential. No sign-up needed.
About our doctors
Only qualified doctors who have confirmed the availability of medical education and other certificates of medical practice consult on our service. You can check the qualification confirmation in the doctor's profile.