Which term describes slow loss of kidney function over time, abbreviated CKD?

• A. Acute Kidney Injury - AKI
• B. Nephrolithiasis
• C. Chronic Kidney Disease - CKD
• D. Nephropathy

Answer: (C)

Slow, progressive decline in kidney function over months to years defines chronic kidney disease. When kidney function remains reduced for at least three months, or there is evidence of kidney damage persisting for that period, clinicians label it CKD, which is why the abbreviation CKD fits perfectly. This condition is typically evaluated using the estimated glomerular filtration rate (eGFR) and may be accompanied by albuminuria or other markers of kidney damage.

In contrast, acute kidney injury describes a rapid loss of kidney function over hours to days and is often reversible with treatment, not the slow, ongoing process CKD implies. Kidney stones (nephrolithiasis) are a distinct issue involving stone formation, not a gradual decline in filtration function. Nephropathy is a general term for kidney disease and doesn’t specify the chronic, progressive course or the standard abbreviation CKD.