diagnostics for renal Flashcards
what are the 6 functions of the kidney
- eliminate toxic substances
- regulate body water and solute conc
- regulate acid-base balance
- excrete nitrogenous waste (urea and crew)
- regulate electrolyte comp
- endocrine (EPO, renin, metabolites of VitD)
what are the 6 functions of the kidney
- eliminate toxic substances
- regulate body water and solute conc
- regulate acid-base balance
- excrete nitrogenous waste (urea and crew)
- regulate electrolyte comp
- endocrine (EPO, renin, metabolites of VitD)
what is GFR
rate fluid moves from plasma to glomerular filtrate
how is GFR measured
the rate a substance is cleared from plasma - crea, inulin
what affects GFR
renal perfusion and renal plasma flow
define renal failure
decreased renal function due to decreasing no of functional nephrons
define azotaemia
increase in non-protein nitrogenous compounds - usually urea ± crea
define uraemia
clinical signs and biochem abnormalities ass w loss of functional nephrons
signs of uraemia
d+, v+, anorexia, ulcerative stomatitis, GI haemorrhage (bruxism in ruminants)
what is USG
measure of kidneys ability to conc urine
what range = isosthenuric
1.008-1.012
what range = hyposthenuric
what range = conc
cat = 1.035 dog = 1.030
what is haematuria
intact blood in urine
what causes haematuria
trauma, cystitis, renal bleeding, GT bleeding