What is the MCV given the following values: RBCs 5.00 x 10^12/L, HGB 9 g/dL, HCT 30?

To find the mean corpuscular volume (MCV), the formula used is:

[

MCV = \left( \frac{HCT}{RBC} \right) \times 10

]

Here, the hematocrit (HCT) is given as 30 and the red blood cell count (RBC) is given as 5.00 x 10^12/L. First, it's important to convert the HCT from a percentage to a decimal when performing the calculation, which means using 30 as 30%.

Now substituting these values into the MCV formula:

[

MCV = \left( \frac{30}{5.00} \right) \times 10

]

Calculating it step-by-step:

1. 30 divided by 5.00 equals 6.

2. Multiply 6 by 10 to get 60.

Thus, the MCV calculated is 60 fL (femtoliters).

When reviewing the choices, the correct and calculated value for MCV is indeed 60, which matches the answer that is believed to be B. Understanding how the hemoglobin (HGB) value contributes to the MCV calculation can clarify why it