Relative to the upper GI tract, the lower GI tract secretes more potassium, so more is directly lost in the feces in cases of chronic diarrhea, like from infections, inflammatory bowel diseases, as well as laxative abuse.

相对于上消化道而言，下消化道分泌更多的钾，因此在慢性腹泻的时候更多直接丢失入粪便，比如通过感染、肠道炎症，以及泻药的滥用。