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Doctor insights on: Reticulocyte Count

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Dr. Tipu Sultan
64 doctors shared insights

Reticulocyte Count (Overview)

"young" red blood cells. They have just emerged from the bm into the circulation. They tend to be larger and slightly purple on the smear. A special stain can be done to make them stand out and the lab can count them. This is usually a sign of a robust production of rbcs and therefore good news. Especially if the patient is recovering from blood loss or some other marrow insult.


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Just got blood test results. My reticulocyte count was fine, but the "immature fraction" was high (0.19). What does this mean? Should i be concerned?

Just got blood test results.  My reticulocyte count was fine, but the "immature fraction" was high (0.19). What does this mean? Should i be concerned?

Anemia?: Reticulocyte count, corrected reticulocyte count, and reticulocyte production index are used to measure whether the bone marrow is responding adequately to the destruction of red blood cells in a hemolytic anemia. In severe anemia, reticulocyte maturation time is prolonged and considered in calculations, due to the bone marrow releasing immature forms. If you are not anemic, i wouldn't worry. ...Read more

Dr. Tipu Sultan
64 doctors shared insights

Reticulocyte Count (Overview)

"young" red blood cells. They have just emerged from the bm into the circulation. They tend to be larger and slightly purple on the smear. A special stain can be done to make them stand out and the lab can count them. This is usually a sign of a robust production of rbcs and therefore good news. Especially if the patient is recovering from blood loss or some other marrow insult.


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Does high reticulocyte count mean sickle cell crisis?

Not necessarily....: Patients with sickle cell disease have elevated reticulocyte counts at baseline, as their red cells have significantly reduced half lives relative to normal rbcs. More rapid red cell synthesis, reflected by the high retic count, is needed to maintain steady state, albeit lower than normal. Are you having other symptoms suggesting vaso occlusive crisis? If so, you should seek medical attention. ...Read more

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Cbc and reticulocyte count. What does this mean?

Cbc and reticulocyte count. What does this mean?

Can detect anemia: These are two tests performed to evaluate a low red blood cell count, called anemia. CBC is a complete blood count. It tells about the number and other descriptive measures of the blood cells. It will detect a low red blood cell count. The reticulocyte count measure production of new red blood cells. Should be high in anemia. It provide more information bout the anemia. ...Read more

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Low absolute reticulocyte count. Does it mean I have bone marrow or cancer problems?

Low absolute reticulocyte count. Does it mean I have bone marrow or cancer problems?

No: The reticulocyte count is 1 test in evaluation for anemia. A low count does not mean cancer. It may indicate a marrow problem, but may indicate another problem. Please consult with a hematologist if anemia is the problem. ...Read more

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Reticulocyte count is .85% for a 70 years old man with macrocytic anemia. Hb is 9 and MCV is 105. Is the reticulocyte count normal?

Reticulocyte count is .85% for a 70 years old man with macrocytic anemia. Hb is 9 and MCV is 105. Is the reticulocyte count normal?

Probably not: In patients without anemia, a normal retic count is 1%. As anemia develops, if the marrow can respond, the retic count should rise, meaning more red blood cells are being made. Whatever is causing your anemia (with an elevated MCV), such as B12 deficiency or other causes, is also inhibiting your bone marrow from making new cells and thus your retic count is inappropriately low. ...Read more

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What is the definition or description of: reticulocyte count?

What is the definition or description of: reticulocyte count?

Reticulocytes are: "young" red blood cells. They have just emerged from the bm into the circulation. They tend to be larger and slightly purple on the smear. A special stain can be done to make them stand out and the lab can count them. This is usually a sign of a robust production of rbcs and therefore good news. Especially if the patient is recovering from blood loss or some other marrow insult. ...Read more

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A reticulocyte count indicated that 5% of a woman's RBC were reticulocytes. Is that normal for an adult?

A reticulocyte count indicated that 5% of a woman's RBC were reticulocytes.  Is that normal for an adult?

Reticulocytosis: Whether a reticulocyte count is normal depends on how anemic the patient is. A high reticulocyte count usually indicates increased production of red cells by the bone marrow, but the reason for this can only be determined by a hematologist. Considerations include hemolysis (blood cell destruction), recovery from a vitamin deficiency, or recovery from bleeding. Please seek advice from your md. ...Read more

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Cbc and reticulocyte count. What does this mean?

Can detect anemia: These are two tests performed to evaluate a low red blood cell count, called anemia. CBC is a complete blood count. It tells about the number and other descriptive measures of the blood cells. It will detect a low red blood cell count. The reticulocyte count measure production of new red blood cells. Should be high in anemia. It provide more information bout the anemia. ...Read more

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What causes a high reticulocyte count in blood test?

What causes a high reticulocyte count in blood test?

Lots of new reds: If I've had to make more red cells than usual, after a blood donation, or a minor or major bleed, or because I've hemolyzed from running a marathon, or I've destroyed reds from illness, then the reticulocytes will be up. More than 1.5% is worth investigating. Best wishes ...Read more