The lab<unk>  include measuring levels of vitamin B12, folate, methylmalonic acid, and homocysteine. Peripheral blood smear is also helpful.
Macrocytic anemia laboratory findings
Macrocytic anemia physical examination
Iron deficiency anemia laboratory findings
Autoimmune hemolytic anemia physical examination
Acute liver failure laboratory findings
Acute renal failure laboratory findings
Anemia of chronic disease laboratory findings
Thrombocytopenia physical examination