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Doctor insights on: What Is Hematocrit

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What does the hematocrit measure?

What does the hematocrit measure?

Red cell volume: Hematocrit is the proportion of blood volume made up by red blood cells. A hematocrit of 45 means that 45% of blood volume is red cells and the rest is plasma or liquid part. ...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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What are poc hematocrit rb low level symptoms?

What are poc hematocrit rb low level symptoms?

Depends. How low?: 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, most people do not have any symptoms with hemoglobin level of 10 gm/dL or hematocrit of 30.
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Practice safe sex. ...Read more

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What causes high hematocrits levels?

Dehydration and PV: Dehydration means not enough water in your body. If your red cells are the same, the Hb and Hct will show a higher concentration. PV or polycythemia vera, is when your body produces too many red blood cells. It can be caused by cancer, smoking, or sleep apnea. ...Read more

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What's hematocrit in the blood?

It's a percentage: Basically, the hematocrit is a volume percentage of red cells in whole blood (the other parts being primarily plasma, white cells and platelets). Low or high hematocrits could indicate disease processes; however abnormal levels are not uniformly something to worry about. ...Read more

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What should the hematocrit be in a 93 year old woman?

What should the hematocrit be in a 93 year old woman?

About 45: You may consult this site for info on this topic:
https://medlineplus. Gov/ency/article/003646.htm ...Read more

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What hematocrit value is required to donate blood? What can I do about my low hematocrit value?

What hematocrit value is required to donate blood? What can I do about my low hematocrit value?

Hematocrit low?: Organizations like the red cross, world health org., american medical asso., set standards concerning hematocrit requirement to give blood. A low hematocrit can have many causes. One of the commonest is iron deficiency anemia due to nutritional deficiencies and blood loss (menstruation). Increasing oral iron and decreasing blood loss usually raises the hematocrit. Treat all causes of anemia. ...Read more

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What's the difference between hematocrit level and pcv level. At what point are they too high for a man?

Hematocrit/PCV: This measures the volume of red blood cells in a blood specimen. The spun or centrifugal hct/pcv is directly measured rather than calculated. If the values are high you are considered to have polycythemia which can be either primary or secondary. This needs a detailed evaluation to determine the cause of excessive numbers of rbcs.. ...Read more

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What is the normal hematocrit for pregnancy?

Higher than 36: See this site for more information.
http://www. Nlm. Nih. Gov/medlineplus/ency/article/003645.htm ...Read more

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What causes a low hematocrit, low hemoglobin, low mcv, and elevated liver enzymes?

What causes a low hematocrit, low hemoglobin, low mcv, and elevated liver enzymes?

Medical illnesses: There are many medical conditions that can cause these things...In general, you have anemia, and abnormal liver function tests that need to be evaluated and treated depending on the results of why you are anemic and have elevated liver enzymes. ...Read more

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I am confused about my recent blood work. What is the hemoglobin, hematocrit, mcv, mch, mchc and rdw?

Complete blood count: You should not be confused with those numbers. That is why your doctor is there to help analyse and interprete those numbers. Go to see your doctor who ordered that blood work and discuss with him/her what it means. ...Read more

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What levels do the rbcs., hematocrit and hemoglobin have to be to have a polycyhtemia vera diagnosis?  

Varying: In 2007 the world health organization recommended HGB 18.5 / 16.5 men/women, without another cause, and with supporting evidence, nowadays including usually a search for the jak2 mutation. ...Read more

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What can cause my hemoglobin, hematocrit, and RBC levels to be low?

Many causes: Deficiency of iron, folate, (folic acid) vitamin B12 and chronic blood loss are common causes of anemia, but you need to be evaluated to determine the cause in your case. See this site for more info and consult your doctor.
http://www. Mayoclinic. Com/health/anemia/ds00321. ...Read more

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When confronted with a patient with low Hb or hematocrit, what is the next level of hematological assessment?

Kind of anemia: (1) Look at the peripheral smear, how the red cells look. This may give it away. (2) Reticulocyte count. Losing / destroying too many, or making too few? ...Read more

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What does low hemoglobin, low hematocrit, low much and high rdw mean? My labs have been like this for over a year

Anemia: Depending on other lab values you may have a B12 or folate (folic acid) deficiency as well, would need more info on your case. You are welcome to make a HealthTap Prime or Concierge appointment with me and we can review all the labs and your current medical history. Then I can give you a much better idea of what you are dealing with. ...Read more

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I have a high ESR (westergren) & c-reactive protein with low hematocrit. What could this mean?

I have a high ESR (westergren) & c-reactive protein with low hematocrit. What could this mean?

Inflammation?: The findings are strongly suggestive of inflammation, but do not point to a specific diagnosis. This needs to be followed up with a detailed history, physical exmaination and likely additional tests. ...Read more

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What is a normal iron/hematocrit level for an 18 month old? My son's was 26, and the doctor said that it was low, and that we have to get tests.

Normal hct 36: The average hematocrit level @ 18m is 36% with 33% being the low end of normal. Since blood formation is very dependent on available iron, the hemaglobin or hematocrit are often used as a simple screening test of iron availability. Normal iron level infants is a range of 40-100 micrograms/deciliter. ...Read more

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My 3 yr old has a very high neutrophil count, very low lymphocyte count, high sed rate, low hematocrit. What could be going on with him. Repeat labs?

Infection: The shift to neutrophils and away from lymphocytes occurs during the early stages of fighting an infection or fighting a bacterial infection. The sed rate is a nonspecific marker, that could be up w/infection, or lots of other things. The low hct doesn't fit well, unless just barely out of normal. In any case, at 3 yrs old, needs close exam by pediatrics. ...Read more

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Could you tell me what are leads to for high hematocrits?

Polycythemia: Elevation of hemoglobin / hematocrits is called polycythemia. It can be divided in to two groups- primary bone marrow problem- is called- polycythemia vera vs. Secondary polycythemia that can be caused by / associated to different conditions- including dehydration, significant lung disease, problem with liver, cysts, familial conditions etc. D/w your md and you may need to see a hematologist. ...Read more