Renal Disorders Flashcards
Anuria
no urine production
GFR
amount of plasma filtered/ time
reflects kidney function
Uremia
toxic wastes/ urine in blood
How much urine is produced per day?
1-2 L
Glomerulus
filters blood
absorbs Na
Tubule
absorbs water, Na, glucose
excretes K, H, HCO3
Tests for Kidney Function and Uremia
creatinine
BUN
Tests for GFR
inulin clearance- best
creatinine clearance- most common
Normal Specific Gravity in Urinalysis
1.001 - 1.035
Hyaline Casts
protein in urine, only a problem if high
slows flow
Elevated in UTIs
leukocyte esterase
Presence of Bilirubin in Urinalysis
liver problems
Starvation Indicator
ketones
Creatinine Rule of Thumb
renal loss doubles for every doubling of serum creatinine above 1 mg/dL (norm)
Elevated in kidney failure
BUN
creatinine
Normal Creatinine Clearance
115 - 125 mL/min
100%
Estimate of Creatinine Clearance
100/ serum creatinine
Adult Polycystic Disease
40+
can result in cysts in liver or pancreas