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How do you tell the difference between B12 deficiency and iron deficiency anemia

A 38-year-old member asked:
Dr. James Ferguson
Pediatrics 46 years experience
Blood work: Your physician can order commonly available tests for your levels of b12, iron, iron binding capacity and the carrier proteins for iron. All of these ... Read More
Dr. Della Howell
Pediatric Hematology and Oncology 23 years experience
Your blood tests: The same blood tests that doctors run to check for anemia in a person can also give a clue as to the cause of anemia. With iron deficiency, red blood... Read More
Dr. Joseph Torkildson
Pediatric Hematology and Oncology 39 years experience
RBC size: I think your question is how do you distinguish between anemia caused by iron deficiency and that caused by B12 deficiency. The answer is the size if ... Read More

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A 36-year-old member asked:
Dr. James Ball
Pediatric Hematology and Oncology 19 years experience
Blood test: The anemia of iron deficiency give very small red blood cells. The anemia of B12 deficiency causes large rbcs. But even better than looking at the bl... Read More
Dr. Michael Engel
Pediatric Hematology and Oncology 20 years experience
Assuming anemia...: Fe deficiency and B12 deficiency can be distinguished by the size of your red cells. Fe deficiency results in a microcytic hypo chromic anemia, reticu... Read More
A 44-year-old female asked:
Dr. Olivia Liao
Ophthalmology 31 years experience
Good question: There could be conditions besides lupus to account for iron deficiency and B12 deficiency associate with cataracts. Your doctor might want to go over... Read More
Dr. Chevies Newman
Obstetrics and Gynecology 22 years experience
It sounds like: You are being worked up thus lupus would have likely been found. You are looking for a systemic disease that created all your symptoms instead of see... Read More
Dr. Tracy Lovell
Rheumatology 21 years experience
See below: Consider being checked for celiac disease if you have not already in light of your history of iron and B12 deficiency anemia.
A 21-year-old member asked:
Dr. Jay Park
Dr. Jay Parkanswered
Pediatrics 50 years experience
Matter of degree: When iron intake is inadequate for a prolonged period, iron storage in body is depleted. This is called iron deficient state. When this iron defici... Read More
A 30-year-old member asked:
Dr. Bruce Rothschild
Rheumatology 48 years experience
Blood test: Iron levels, related to iron binding capacity and ferritin should be assessed.
A 34-year-old member asked:
Dr. Boris Sheynin
Internal Medicine 22 years experience
Lack of Iron: Iron deficiency anemia is result of insufficient iron supply and/or chronic blood loss. Our red blood cells are produced in bone marrow, which needs ... Read More
A 23-year-old female asked:
Dr. Jon Fishburn
Ophthalmology 30 years experience
Rare: Usual cases of iron deficiency anemia are caused by blood loss from some source, whether stool, menses, inadequate intake, heel strike hemolysis, etc.... Read More
A 18-year-old female asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Yes, please: You should keep your doctor informed of all the symptoms and all the medications that your taking, including non-prescription and herbal medications. ... Read More
A 48-year-old member asked:
Dr. Guy DaSilva
Preventive Medicine 35 years experience
The MCV is the clue: When you get a CBC blood test, there is something called the mcv. This is the red blood cell size. If the cell size or MCV is low, this implies that... Read More
A 33-year-old female asked:
Dr. Ed Friedlander
Pathology 44 years experience
Unlikely: Monitor your breathing and see if it is related to your tingling. I trust your serum calcium is not way-low.

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