What is your hemoglobin level?
What was microscopic blood picture? Do you have the peripheral blood smear findings?
Ferritin of 12 is normal in a female, though on the lower side of normal. The reference range in females is 11-306 ng/mL. However please check with the lab where you had the test done and what is their reference range.
Peripheral blood smear is the microscopic examination of the blood. In iron deficiency anemia the red blood cells are smaller in size when observed under the microscope.
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