Kidney func Flashcards
Urea conc milk
2-3 mmol/l
normal creatinin conc
50-200 umol/l
Plasma urea (mmol/l) / plasma creatinine (µmol/l)
0.1-0.06
High urea:
increased protein intake
gastrointestinal bleeding
fever (increased protein catabolism) tetracycline, steroid treatment
haemolysis
necrotic processes
hyperthyroidism (increased protein catabolism)
catabolic drugs (amphetamine)
low urea
liver failure, portosystemic shunt
polyuria-polydypsia
low protein intake
anabolic steroids
low normal creatinin
cachexia chronic muscle atrophy
high creatinin
inflammation of muscles (myocarditis, rhabdomyolysis)
rhabdomyosarcoma
muscle trauma
increased meat intake
normal creatinin clearance
2.4-5 (dog), 1.9-5 (cat)
Urinary total protein/creatinine ratio
normal
< 0.078 (dog).
When is there pathological protein uria
If the ratio is more than 0.131,
Basic tests
- normal value at 5% dehydration
GRAVITY
1050-1080 g/l
Basic tests
- normal value at 5% dehydration
URINE OSMOLALITY
dog: 1787-2791 mOsm/kg,
cat: 1581-2984 mOsm/kg
Basic tests
- normal value at 5% dehydration
URINE OSMOLALITY
dog: 1787-2791 mOsm/kg,
cat: 1581-2984 mOsm/kg
Alkaline phosphatase (U/l) / Creatinine (µmol/l)
normal value:
0.02
Gamma-glutamyl transferase (U/l) / Creatinine (µmol/l)
normal value:
0.01
When do we use a water deprivation test to see
when we want to evaluate the causes of polyuria and polydypsia .
if specific gravity is: 1050-1080 g/l
Normal -1050-1080 g/l
psychogenous polydypsia
if specific gravity is: 1050-1080 g/l
Normal -1001-1007 g/l
tubular cell damage or decreased ADH (antidiuretic hormone) function
When is the water deprivation test contraindiated?
in case of high urea concentration in the blood (>25 mmol/l), and in case of animals having diabetes mellitus!
