Composition of filtrate
depends on the filtration
barrier
easily filtered
Major electrolytes: Metabolic waste products:
Metabolites;Non-natural substances: inulin,
PAH (p-aminohippuric acid) ;Lower-weight
proteins and peptides:
not freely filtered
Albumin and other plasma proteins ; Lipid-soluble
substances transported in the plasma attached to
proteins, such as lipid-soluble bilirubin, T4 (thyroxine),
other lipid-soluble hormones ; Unbound lipid-soluble
substances such as free-cortisol are filtered and can
appear in the urine
Starling forces which
determine GFR or glomerular
filtration rate
classification of renal diseases
Acute
chronic
Diabetic nephropathy
signs and symptoms
Worsening blood pressure control
Nausea and vomiting
Swelling of feet, ankles, hands or eyes
Increased need to urinate
Protein in the urine
Confusion or difficulty concentrating
loss of appetite
NEG of vascular basement
membrane leads to hyaline
arteriolosclerosis
High filtration injury that leads to sclerosis of
mesangium
Investigations for kidney diseases
Hematuria
Proteinuria
Functional
Overflow
Glomerular
tubular
Color, Clarity, Gravity
Glucose, ketones
Bilirubin, urobilinogen
Nitrites, leukocyte esterase
Treatment
medications
ACE inhibitors and ARBs are the mainly the only
drugs that actually slow down the progression of the
nephropathy