Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 46

CSF can be differentiated from serum by the presence of:

A. Albumin

B. Globulin

C. Prealbumin

D. Tau transferrin

Step 1 of 2

CSF (cerebrospinal fluid) protein:

• Frequently performed chemical test on CSF is protein test

• Generally, CSF contains only small volume of protein

• Reference value for total CSF protein is 15 to 45 mg/dL (milligrams per deciliter)

• CSF is differentiated from serum by the existence of globulin in CSF, which is classified as alpha and gamma globulins

• Alpha globulin includes ceruloplasmin and haptoglobin

• Gamma globulin in CSF consist of IgG (immunoglobulin G) with small volume of IgA (immunoglobulin A)

Therefore, CSF has “globulin”, which is easy to discriminate CSF from serum. Hence, the correct answer is option.