Polyuria

Question 1

What is polyuria?

Answer 1

Excessive output of urine

Question 2

What is the normal amount of urine excreted per day?

Answer 2

1.5 L

Question 3

What amount of urine excretion is considered excessive?

Answer 3

2.5-3 L

Question 4

What can cause polyuria?

Answer 4

Increased fluid intake

Decreased water conservation

Question 5

What kinds of drinks can especially cause polyuria?

Answer 5

Caffeine

Alcohol

Question 6

What is psychogenic polydipsia?

Answer 6

Compulsive urge to drink excessive amounts of water

Question 7

What can cause osmotic diuresis?

Answer 7

Excessive

• Salt
• Glucose

Question 8

Why may the kidneys not be able to reabsorb water from the distal tubules?

Answer 8

Inadequate levels of ADH; eg: in certain pituitary disease

Unable to respond to ADH