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Dictionary · Drug

potassium chloride

A potassium salt given by mouth or IV to treat or prevent a low blood potassium level.

puh-TAS-ee-um KLOR-ide nounHigh-alert drug

What it means

The most common potassium supplement. By mouth it comes as extended-release tablets, liquid and powder. By IV it is always diluted in a bag of fluid. Its main danger is too much potassiumpuh-TAS-ee-umA mineral in the blood that nerves and muscles, including the heart, need in order to work.Full entry in the blood (hyperkalemiahy-per-kuh-LEE-mee-uhA blood potassium level above normal, over 5.0 mEq/L.hyper- abovekal potassium (from its Latin name, kalium)-emia in the bloodFull entry ), which can stop the heart; concentrated injection given by mistake, or pushed quickly, has killed clients. By mouth it can irritate the stomach.

For the nurse

IV potassium is never given by IV push: it is diluted and run on a pump at the ordered rate, often no faster than 10 mEq an hour through a peripheral line. Check kidney function and urine output first, watch the IV site, and follow potassium levels. Give oral forms with food and a full glass of water, and teach the client to swallow extended-release tablets whole. ISMP lists only potassium chloride for injection concentrate as high-alert; the oral forms are not on its list.

At a glance

Drug classelectrolyte replacement (potassium supplement)
Brand namesK-Tab, Klor-Con
AbbreviationsKCl
Spanishcloruro de potasio
Also writtenK-Tab, Klor-Con, KCl

Related terms

potassium

A mineral in the blood that nerves and muscles, including the heart, need in order to work.

hypokalemia

A blood potassium level below normal, under 3.5 mEq/L.

hyperkalemia

A blood potassium level above normal, over 5.0 mEq/L.

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