Leukocytes in urine with negative nitrites can be confusing. Learn why this result neither confirms nor rules out a UTI, what symptoms matter, and which follow-up tests may help.
A blood in urine test can raise questions even when your urine looks normal. Learn why a dipstick needs confirmation, what microscopic hematuria can mean, and when to seek care.
A cystatin C test can help clarify kidney function when creatinine-based eGFR is uncertain. Learn when it helps, what the combined estimate shows and why urine tests still matter.
Creatinine alone cannot show every aspect of kidney health. Learn how three kidney tests—eGFR, uACR and urinalysis—work together to give a fuller picture.
Can a high-protein meal raise creatinine? Cooked meat may temporarily increase creatinine and lower calculated eGFR. Here is how to prepare for testing and interpret an unexpected result safely.
Does foamy urine mean protein is leaking from your kidneys? Learn what causes bubbles, when to request a uACR test and which warning signs need medical attention.
A hard workout before a kidney blood test can sometimes raise creatinine and make eGFR appear lower. Learn how to distinguish a temporary exercise effect from a possible kidney problem.
Creatine supplements can sometimes raise blood creatinine and make calculated eGFR appear lower. Learn why this happens and which additional tests may clarify your kidney health.
A normal fasting-glucose result and an elevated A1C can appear contradictory. Learn what each test measures, why the results may disagree and what to discuss with your healthcare professional.
Emerging research is examining whether fat around the kidneys may provide another clue about metabolic and kidney health. Here is what we know—and what to check.