Question

After dialysis, the level of magnesium in Michelle's blood was $0.0026g/dL.$

a. What is this value in milliequivalents per liter?

b. According to Table $9.6$, is this value above, below, or within the normal range?

Short answer

(part a) The value in milliequivalents per liter is$2.14mEq/L.$

(part b) The value of magnesium is within the normal range.

Step-by-step solution

Introduction (part a).

When the kidney function quit functioning properly, dialysis is being used to delete wastes and extra fluid from the blood. It frequently entails redirecting heart to a machine for cleaning.

Given Information (part a).

Given:

Molar mass of $M{g}^{2+}$is $24.305g/mol.$

Ion present in blood is $0.026g/dL$

We know, $1dL=0.1L$

Convert$g/dL$to$mol/L$is as follows:

$$\begin{gathered} =\frac{0.0026\mathrm{g}}{\mathrm{dL}}\times \frac{1\mathrm{dL}}{0.1\mathrm{L}}\times \frac{\mathrm{mol}}{24.305\mathrm{g}} \\ =0.00107mol/L \end{gathered}$$

Explanation (part a).

Charges in $Mg$is $+2.$Then, $1\text{mole of}{\mathrm{Mg}}^{2+}\text{ion}=2\mathrm{Eq}\text{of}{\mathrm{Mg}}^{2+}\text{ion.}$

Convert $mol/L$to $mEq/L$is as:

$$\begin{gathered} =\frac{0.00107{\mathrm{molofMg}}^{+2}}{1\mathrm{L}}\times \frac{2\mathrm{Eq}\text{of}{\mathrm{Mg}}^{+2}}{1\mathrm{mol}\text{of}{\mathrm{Mg}}^{+2}}\times \frac{1000\mathrm{mEq}}{1\mathrm{Eq}} \\ =2.14mEq/L \end{gathered}$$

Given Information (part b).

Find the values of magnesium.

Explanation (part b).

According to the reference,

The value of magnesium is within the range.