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13 Cards in this Set
- Front
- Back
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is K intracellular or extracellular?
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intra
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where is most of the K found in our bodies? %?
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95-98% found WITHIN cells
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What are sources of K?
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UNprocessed foods
nuts, legumes, seeds some f & v |
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What ion is increased and what ion is decreased during cooking / processing?
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increased: Na
decreased: K |
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what is the absorption efficiency of K?
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90%
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How is K absorbed?
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passive diffusion or K + / H + ATPase pump
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what is the functions of K?
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contractitility of smooth, skeletal, and CARDIAC muscle
maintain electrolyte and pH and fluid balance |
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What effect does K have on Ca?
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decreases calcium excretion ( opposite of Na)
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What is the AI of K and what is significant about it?
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4,700 mg (4.7 g)
*LARGEST DRI of the micronutrients also, no UL for K |
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does the average american diet get enough K?
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no
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how is K assessed>
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ion-selective electrode potentiometry
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What is hyperkalemia and when does it occur?
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K toxicity
death row way of killing ppl |
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what is hypokalemia? when can it be a cause of death?
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K deficiency
* in diarrhea in children - extreme loss causes acute heart failure because not enough K |
