Chap 62 Azotemia And Urinary Abnormalities Flashcards
1
Q
Persistent/ significant hematuria
A
> 3 RBCs/hpf on three urinalyses
Single urinalysis with >100 RBCs
Gross hematuria
2
Q
Most common etiologies of isolated glomerular hematuria
A
IgA nephropathy
Hereditary nephritis
Thin basement membrane disease
3
Q
True polyuria
A
> 3L
4
Q
Mechanisms of polyuria
A
Excretion of non absorbable solutes
Excretion of water
5
Q
Dilute urine
A
<250 mOsm
6
Q
To distinguish solute vs water diuresis
A
Urine osmolality
7
Q
Urine volume >3L and urine osmolality <250
A
Water excretion
8
Q
Urine volume >3L and urine osmolality >300 mOsm
A
Solute diuresis
9
Q
Most common cause of solute diuresis
A
Uncontrolled DM with glucosuria
10
Q
best method, central vs nephrogenic DI
A
Serum vasopressin levels
