What is the A/G ratio if the total protein is 7.2 g/dL with Albumin 3.8 g/dL and other fractions totaling 3.4 g/dL?

To find the A/G ratio, which stands for Albumin to Globulin ratio, we first need to understand the components involved. The total protein measurement includes both albumin and globulin proteins. In this case:

• Total protein = 7.2 g/dL

• Albumin = 3.8 g/dL

• Globulin is calculated by subtracting albumin from the total protein:

Globulin = Total protein - Albumin = 7.2 g/dL - 3.8 g/dL = 3.4 g/dL.

Now, the A/G ratio is determined by dividing the albumin value by the globulin value.

Using the values provided:

A/G ratio = Albumin / Globulin = 3.8 g/dL / 3.4 g/dL.

Calculating this gives:

A/G ratio = 3.8 / 3.4 ≈ 1.118.

When rounded, this value falls closest to 1.1, making this the correct answer. The A/G ratio helps in the evaluation of various conditions, such as liver disease and nephrotic syndrome, as it reflects the balance between the two major classes of proteins in the blood