Potassium Flashcards
1
Q
what is the normal range for potassium?
A
3.5 to 5.0
2
Q
T or F: potassium is a cation
A
true
3
Q
what are the main functions of potassium?
A
- controls intracellular osmolality
- regulator of cellular enzyme activity
- role in the transmission of electrical impulses in nerve, skeletal, heart, intestinal, and lung tissues
- regulation of acid-base balance by cellular exchange with H+ (hydrogen)
4
Q
where is potassium lost?
A
it is lost in the kidneys, stool, sweat, and emesis
5
Q
what are some foods we can get potassium from?
A
bananas, fruits, vegetables, whole grains, legumes, milk, meats
6
Q
what are some ways that potassium is regulated in the body?
A
- regulated by aldosterone
- eliminated by the kidneys (no effective method of conserving potassium)
- additional regulation via trans cellular shift between the ICF and ECF compartments
