Hyperphosphatemia

Question 1

Mechanisms

Answer 1

Increased intake or absorption
-Transcellular shifting
-Decreased renal excretion
-Multifactorial

Question 2

Increased intake

Answer 2

-High P diets
-Administration of P compounds
-Hypervitaminosis D

Question 3

Transcellular shifting

Answer 3

-Acute tumor lysis -> release intracellular contents
-Severe soft tissue trauma-> release contents

Question 4

Decreased urinary excretion

Answer 4

-Decreased GFR
-Urinary bladder rupture
-Decreased PTH

Question 5

Neonates and young

Answer 5

-Increased GH-> increases vitamin D, increased resorption
-Bone growth

Question 6

Acromegaly

Answer 6

Increased GH-> increases vit D and increased renal reabsorption of P