Fluid Concentrations Flashcards
High Osmolality =
Low Osmilality =
- Water defecit
- Water excess
Osmolality is measured in…
Osmolarity is measured in…
- milliOsmols/L
- milliOsmols/ L
Normal Osmolarity lvls
280-300
Hypotonic makes cells…
Swell
Hypertonic makes cells…
Shrink
What two nutrients are commonly filtered and reabsorbed?
Sodium and Potassium
What two nutrients are filtered and reabsorbed?
Sodium and Potassium
Kidneys regulate
FLuid and electrolyte balance
7 kidney functions
- Controlling Acid-Base Balancec
- Controlling water balance
- Maintaining electrolyte balance
- Removing toxins and other wastes
- COntrolling BP
- Activating vitamin D
Where is ADH made and produced?
-Hypothalmus (made)
- Pituitary (Stored)
How does ADH affect blood volume and how?
Restores it by:
- Reducing urine output
- Increasing water retention
- Causes vasoconstriction
How does ADH affect urine?
Causes it to become more concentrated as well
What do kidneys use renin for?
To regulate BP
What does renin do?
It turns Angiotensinogen into Angiotensin
How does Aldosterone affect the body?
- Regulates water
- Causes kidney to retain Na and water
- Causes K secretion
How does Aldosterone affect BP?
It raises it due to more water retention
When is Aldosterone released?
If Na is low and K is high
RAAS
Renin-Angiotensis-Aldosterone-System
What does ANP (Atrial Natriuretic Peptide) do?
- Lowers BP through vasodilation
- Increases Na and water secretion
- Made and stored in the Atria
- Stops the RAAS
What depletes Electrolytes?
- Vomiting
- Pooping
- Peeing
- Sweating
What do we monitor to help track electrolytes?
I & O
