Albumin Excretion Rate (AER)

 

Parameters:

(1) urine albumin concentration in mg/dL

(2) volume of urine in mL

(3) duration of specimen collection, up to 24 hours

 

duration of specimen collection in minutes =

= (collection period in hours) * 60

 

urine albumin excretion in µg =

= (urine albumin concentration in mg/dL) * (urine volume in mL) / 100 * 1000

 

albumin excretion rate in µg/min =

= (urine albumin excretion in µg) / (duration of collection period in minutes)

Albumin Excretion Rate (AER)	Interpretation
> 5 µg/min	early elevation of AER
>= 20 and < 200 µg/min in 2 or 3 of 3 timed specimens	microalbuminuria
>= 200 µg/min	albuminuria