How is the urinary system of the child different than that of of adult?
– Newborn urine production: approx. 1-2ml/kg/hr
– Child urine production: approx. 1 ml/kg/hr
Nephrons continue to grow in size and function until approximately 2 years of age (although all nephrons are present at birth) --> Initial renal function is not as effective-->Risk for dehydration is heightened & Renal metabolism/excretion of drugs is affected by decreased creatinine clearance/GFR
What are some normal pediatric values for GU labs?
Spec gravity: 1.001 -1.035 (reported as "ten-oh-one or then-thirty-five")
Protein < 20 mg/dL (trace)
Ketones, sugars, leukocytes, WBCs should all = 0.
Primary vs. secondary enuresis?
Primary: Bed has never been "dry."
Secondary: New "wet" episodes have been preceded by 6-12 months of dry bed.