Rate of IV infusion of potassium in severe hypokalemia should not exceed
**Core Concept**
The management of severe hypokalemia involves careful consideration of potassium replacement to avoid cardiac and muscular complications. **Severe hypokalemia** is a condition where the serum potassium level is significantly low, posing risks to the cardiovascular system. The **rate of IV infusion** is critical to prevent further complications.
**Why the Correct Answer is Right**
In severe hypokalemia, the goal is to replenish potassium stores while minimizing the risk of cardiac arrhythmias. The rate of IV potassium infusion should be carefully controlled to avoid exceeding the body's ability to distribute and utilize the ion, thereby preventing hyperkalemic complications. The generally recommended maximum rate for IV infusion of potassium in a peripheral vein is 10 mEq/h, but this can be higher in a central line under close monitoring.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a rate that is commonly recognized as a safe maximum for IV potassium infusion in the context of severe hypokalemia.
**Option B:** This is also incorrect as it does not align with standard guidelines for potassium infusion rates.
**Option D:** Similarly, this option does not match the recommended safe infusion rate for potassium in severe hypokalemia.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the infusion rate of potassium should be individualized based on the severity of hypokalemia, renal function, and the presence of any cardiac risks. Monitoring of serum potassium levels and cardiac function is crucial during IV potassium infusion.
**Correct Answer:** C. 20 mEq/h