Test Details: Panel of tests used to diagnose anemia in an individual. Based on initial findings in complete blood count a macrocytic anemia can be diagnosed. Macrocytic anemia can occur due to deficiency of vitamin B12 and folic acid. Symptoms of macrocytic anemia include fatigue, dizziness, headache, shortness of breath, difficulty in concentration, pale skin, leg cramps, insomnia, dementia, numbness, tingling, smooth red tongue, etc.