低血钾时，正常肾脏有保钾功能。
血钾水平降低的同时尿钾水平升高提示肾脏保钾异常。
Elevated urinary potassium levels with low blood potassium levels suggest the kidneys are having problems retaining potassium.
还可能与其他药物相互作用，尤其是心血管药物，例如ace抑制剂，受体阻断剂和保钾利尿药。
It can also interact with other medications, especially certain types of cardiovascular medications such as ACE inhibitors, receptor blockers and potassium-sparing diuretics.
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