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Urine Volume Regulation
Volume Regulation
1. Antidiuretic hormone (ADH)
– IF blood volume LOW– Pituitary releases ADH
Volume Regulation
- ADH causes Water reabsorption
• DCT and Collecting tubules
Volume Regulation
2. Aldosterone– IF blood volume LOW
– Adrenal cortex releases Aldosterone
Volume Regulation
- Aldosterone causes absorption of Sodium
• DCT and Collecting tubules• Results in Water absorption from Collecting tubules
Volume Regulation
3. Amount of solutes in Renal tubule
– The more solutes in urine, the more Water in urine
Renal Disease
1. Renal Obstruction
o Urine “backup” causing inflammation of the Pelvis and Calyces
Renal Obstruction
o Renal Calculi (kidney stones)
- Mineral crystallization- Most common - Calcium
Renal Obstruction
o May obstruct the uretero Treatment
- Pass it- Break it - Lithotripsy- Surgery
2. Proteinuria
o Proteins in the urineo Damaged Bowman’s
capsule
3. Glycosuria
o Glucose in the urineo Excess cannot be
reabsorbed
4. Hematuria
o Blood in the urineo Indicator of kidney
disease
5. Ketonuria
o Ketones in the urine
o Indicates diabetes or starvation (fat metabolism)