Y2calculate

Potassium replacement calculator

How to use potassium replacement calculator

The Potassium Repletion Calculator uses the formula:

$K = (D - C) \times W \times 0.6$

Where:

• $K$ is the amount of potassium needed for repletion (in mmol).
• $D$ is the desired potassium level (in mmol/L).
• $C$ is the current potassium level (in mmol/L).
• $W$ is the patient's weight (in kg).

To use the calculator:

1. Understand the Formula.
2. Gather Information: Desired potassium level ($D$), current potassium level ($C$), and patient's weight ($W$).
3. Plug in Values: Substitute the values into the formula.
4. Calculate: Perform the calculation to find the amount of potassium needed ($K$).
5. Interpret the Result: The calculated value ($K$) represents the potassium needed for repletion.

Example:

Suppose $D = 4 \, \text{mmol/L}$, $C = 3 \, \text{mmol/L}$, and $W = 70 \, \text{kg}$.

Substitute these values into the formula:

$K = (4 - 3) \times 70 \times 0.6$

Calculate:

$K = 1 \times 70 \times 0.6 = 42 \, \text{mmol}$

Interpretation: The calculated value is 42 mmol, representing the potassium needed for repletion.

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