Chap 62 Azotemia And Urinary Abnormalities Flashcards Preview

Harrison's 19th Ed > Chap 62 Azotemia And Urinary Abnormalities > Flashcards

Flashcards in Chap 62 Azotemia And Urinary Abnormalities Deck (10)
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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