How do you differentiate CKD from AKI in terms of onset and reversibility?

• A. CKD is gradual, chronic loss of kidney function lasting more than 3 months and is usually irreversible; AKI is acute and potentially reversible.
• B. CKD is acute; AKI is chronic.
• C. Both are irreversible.
• D. CKD always resolves without dialysis.

Answer: (D)

Onset and reversibility differentiate CKD from AKI. CKD develops gradually over months to years, with persistent kidney dysfunction for more than 3 months, and it is usually not reversible to baseline. The damage accumulates and, even with treatment, progression to end-stage kidney disease is possible, requiring dialysis or transplant in advanced cases. AKI, in contrast, is an abrupt decline in kidney function occurring over hours to days and is often reversible with timely management—restoring perfusion, removing toxins, or relieving obstruction can allow kidney function to return to baseline or near-baseline. So the correct way to view this is: CKD is a slow, long-lasting process that is typically not reversible; AKI is an acute event with potential for recovery. The notion that CKD always resolves without dialysis is not accurate.