Phases of Acute Kidney Injury

Question 1

When does Initiation/ Onset phase begin?

Answer 1

Begins with the triggering event and ends when cellular injury and oliguria begin

Question 2

When does the oliguric phase of AKI begin?

Answer 2

Usually within 8-14 days of the injury

Question 3

What are the characteristics of the oliguric phase of AKI?

Answer 3

Fluid overload
less that 400ml a day output
Increase in serum concentrations of Urea, Creatinine and potassium
Acidotic
Anemic
Likely needing dialysis

Question 4

What are the characteristics of the Diuretic phase of AKI

Answer 4

Increase in urine output
Urine is dilute
Patient may become dehydrated and hypotensive
GFR has begun to recover
Abnormal labs begin to plateau
Monitor labs regularly to ensure patient does not move to far in the opposite direction.

Question 5

How long does the recovery phase of AKI take

Answer 5

6-12 months

Question 6

WHat are the characteristics of the recovery phase?

Answer 6

Improvement of kidney function and energy level of patient
Patient must avoid NSAIDS
Monitor that anemia is improving in patient
discuss renal diet with patient to aid recovery
Test for residual damage to the glomerular basement membrane