<prompt> Microalbuminemina is defined as protein level of100-150mgdl151-200mgd30-300mgd301-600mgd  <response>: Refer Robbins page no Pg1120 The earliest manifestation of diabetic nephropathy is the apperacne of low amounts low amounts of albumin in the urine.. Greater than 30mgday but less than 300 mgday that is microalbuminuria 