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Doctor insights on: Elevated Hemoglobin And Hematocrit Levels

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What could cause low MCV and high RDW but normal MCH, hemoglobin, and hematocrit for over a year?

What could cause low MCV and high RDW but normal MCH, hemoglobin, and hematocrit for over a year?

How low?: Reference ranges are set so that several percent of healthy folks fall outside on either end. If your peripheral smear is unremarkable and the MCV above 70, I'd forget the whole thing. My RDW is always high from donating blood. There are some variants of thalassemia minor that will produce this and puzzle people over a lifetime, though MCH is usually lowish. ...Read more

Dr. Tipu Sultan
843 doctors shared insights

Hematocrit (Definition)

Of red blood cell number. Classically this was the "packed cell volume." blood was placed in a microtube and spun in a centrifuge. The rbcs settle to the bottom and one measures the height in the tube and reported as a percentage. Now determined by an automated machine. A typical hct is about 3 ...Read more


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Compare hemoglobin and hematocrit levels?

Compare hemoglobin and hematocrit levels?

X3: Generally hamatocrit is three times the value of hemoglobin. Hemoglobin refers to the concentration of this protein in blood; hematorit measure red cell mass as a proportion of the blood volume. ...Read more

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If hemoglobin and hematocrit levels are low, will platelet level also be low?

If hemoglobin and hematocrit levels are low, will platelet level also be low?

Not always: But if low hb, low hct are associated with low platelet, the it needs to be more evalauted as the conditions could be contributed by us such as alcohol use, or conditions of the bonemarrow from defective synthesis of precursor cells -called myelodysplastic syndrome, a bm failure blood has 2 types of cellular elements-red blood, white blood and platelets and their precursors come from bone marrow. ...Read more

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What does high prolactin levels with high red blood cells with high hemoglobin and hematocrit levels mean?

What does high prolactin levels with high red blood cells with high hemoglobin and hematocrit levels mean?

Needs work up: High prolactin level can have several reasons. High hemoglobin can be secondary to other causes or a primary bone marrow issue that your bone marrow is making too many red cell out of control. See a hematologist/oncologist for work up. ...Read more

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What could cause low red blood cell count, but normal hemoglobin and hematocrit levels? Also, if it matters, which apparently it doesn't?

What could cause low red blood cell count, but normal hemoglobin and hematocrit levels? Also, if it matters, which apparently it doesn't?

Red blood count is n: We rely more on hemoglobin and hematocrit levels than or red cell counts. So you can ignore your red cell count right now. ...Read more

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What does it mean when my red blood cell count is 5.24? It shoes as high and my hemoglobin and hematocrit levels are low?

What does it mean when my red blood cell count is 5.24? It shoes as high and my hemoglobin and hematocrit levels are low?

Follow it up: Especially, ask your physician whether you have beta thalassemia minor. It's common and a non-problem, but it's worth knowing since if you marry someone else who has it, you may have a child with thal major which is very serious. ...Read more

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Why would a patient's hemoglobin and hematocrit be elevated if he or she has chf?

Why would a patient's hemoglobin and hematocrit be elevated if he or she has chf?

Treatment effect: In point of fact, someone with untreated CHF will have a lower h&h. These measurementa go up with "hemoconcentration" which reflects the volume contracting effects of treatment for chf. Bottom-line: in the absence of an unrelated cause, elevated h&h reflect treatment, not disease. ...Read more

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My cholesterol level has been 280 for the past 6 months, I only weigh 96 pounds and my RBC, hemoglobin and hematocrit are all low what should I do?

Manage your anemia: Anemia, especially in a man, is always serious and you must find the cause. You have a bleeding gut cancer until proved otherwise. If your low weight and anemia are due to a restrictive diet, please reconsider. Your physician must do a proper workup. Cholesterol, despite all the "pop wisdom", is mostly genetic and if a statin's indicated, don't hesitate. ...Read more

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Please explain the low level of hemoglobin and hematocrit in patients with myocardial infarction?

Please explain the low level of hemoglobin and hematocrit in patients with myocardial infarction?

Anemia and MI: Many patients that have a heart attack have normal hemoglobin and hematocrit. However, if a patient does have anemia and coronary artery disease then the anemia can make it more likely that they have a heart attack. This is because with anemia the heart and body are not getting proper oxygen and this puts a strain on the heart and can result in heart attack. ...Read more

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Please explain why is it that the rbc, hemoglobin and hematocrit level of a patient with congenital heart disease is decreased?

Please explain why is it that the rbc, hemoglobin and hematocrit level of a patient with congenital heart disease is decreased?

Nutrition: The most common reason that hemoglobin and hematocrit are decreased is iron deficiency. In most cases, this is due to either inadequate nutrition (low iron intake) or blood loss (including frequent blood sampling.) Neither of these reasons is truly caused by the heart defect, but children with congenital heart disease are at increased risk for either problem. ...Read more

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Why is my hemoglobin and hematocrit in normal range, but my ferritin dropping?

Some ideas: If you are losing blood (monthly loss, loss from illness) or are a non-supplementing vegetarian, you'll lose the iron you need to make red cells before you become anemic. Serum ferritin fluctuates but if yours is low, it needs to be evaluated. ...Read more

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My hemoglobin and hematocrit are rising but my ferritin in dropping, why is that?

Need actual results: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, your ferritin may be returning to normal from whatever may have caused the anemia and tissue damage that may have raised it. It would have been helpful to have the actual values of your results. ...Read more

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My hemoglobin and hematocrit is 15.4 and 47.4 I want to know meaning and harm of this?

Why do you ask?: That's normal. It's high-normal for a young lady like yourself but it's no danger to your health; you may have been a bit dehydrated. ...Read more

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What does it signify if your RBC, hemoglobin and hematocrit are low and have been for at least 6 months?

It is called Anemia: You should send us your lab results. From what you have described, you have Anemia which can be caused by many reasons including excessive blood loss, Iron deficiency or lack of blood formation due to another reason. You should go see a medical doctor(Internist preferred) and request evaluation and further testing to find the cause and treat it. ...Read more

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Why would hemoglobin and hematocrit be low in a COPD patients?

Why would hemoglobin and hematocrit be low in a COPD patients?

Another illness: Anemia of chronic disease does not occur as a result of common emphysema / chronic bronchitis (the usual copd). If such a person is also anemia, another cause should be sought. Anything from being a vegetarian who doesn't know how to supplement to losing blood from an undiagnosed stomach cancer can be the cause. COPD is hard enough with an undiagnosed cause of anemia. Thanks for writing. ...Read more

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Do I need to go get a transfusion if my hemoglobin and hematocrit are low?

Do I need to go get a transfusion if my hemoglobin and hematocrit are low?

Not neccessarily: Blood transfusion is given if the anemia is symptomatic or very low due to active bleeding
asymptomatic anemias can be treated with IV iron or iron by mouth. ...Read more

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What could cause low MCV and high RDW but normal MCH, hemoglobin, and hematocrit for over a year?

How low?: Reference ranges are set so that several percent of healthy folks fall outside on either end. If your peripheral smear is unremarkable and the MCV above 70, I'd forget the whole thing. My RDW is always high from donating blood. There are some variants of thalassemia minor that will produce this and puzzle people over a lifetime, though MCH is usually lowish. ...Read more