Hypersthenuria (concentrated urine) is a USG of _________.
Normal urine SG is _________.
Loss of 66% of GFR leads to...
loss of adequate concentrating ability.
Loss of 75% of GFR leads to...
increased BUN and creatinine.
Loss of 80% of GFR leads to...
Normal urine conc ability is dependent on... (5)
osmoreceptors sensing increase plasma osmolality, adequate ADH, normal response to ADH by collecting duct, normal medullary conc gradient to create osmotic gradient, adequate number of functional nephrons
The hallmark of pre-renal azotemia is...
mild increase in BUN and creatinine and highly conc urine
The presense of an elevated BUN and creatinine in the face of ________ urine in a dog and urine of _______ in a cat indicates some degree of renal damage is present.
Common medications that can interfere with urine conc ability. (3)
phenobarb, steroids, diuretics
What non-renal diseases can interfere with urine conc ability? (7)