Tumor markers may be defined as:

12.  Classroom teachers cannot make a diagnosis of ADHD; it is up to a physician or psychologist.

What are the major limitations of tumor markers?

What is the most common method used in the clinical lab to measure various electrolytes?

The disorders of acidosis (base-deficient) and alkalosis (base-excess) are caused by changes in this ion:

The most common methodology used to identify drugs of abuse or therapeutic drugs is

The test to measure purine metabolism is:

All of the following include specimen variables that affect testing except:

The test to measure purine metabolism is:

What compound is used by the thyroid to make T3 and T4?