Electrolytes Flashcards
Dietary Potassium
- Bananas
- Oranges
- Potatoes
- Grapefruit
- Tomatoes
Dietary Potassium
- Bananas
- Oranges
- Potatoes
- Grapefruit
- Tomatoes
This is the most important intracellular cation
Potassium
This is the most important extracellular cation
Sodium
Keeping a resting membrane potential requires _______.
Energy in order to keep some K+ outside and some Na+ inside (Na/K ATPase Pump)
Definition of Normal Potassium Homeostasis
Dietary Potassium intake must equal potassium excretion
On average, how much potassium to we intake daily?
70-100 mEq
About how much potassium is excreted daily? What controls this?
90%; Aldosterone
About how much potassium is absorbed in the GI tract?
10%
This is the most important intracellular cation
Potassium
This is the most important extracellular cation
Sodium
Keeping a resting membrane potential requires _______.
Energy in order to keep some K+ outside and some Na+ inside (Na/K ATPase Pump)
Definition of Normal Potassium Homeostasis
Dietary Potassium intake must equal potassium excretion
On average, how much potassium to we intake daily?
70-100 mEq
About how much potassium is excreted daily? What controls this?
90%; Aldosterone