The definition of a high red blood cell count varies from one medical practice to another. A normal range in adults is generally considered to be 4.35 to 5.65 million red blood cells per microliter (mcL) of blood for men and 3.92 to 5.13 million red blood cells per mcL of blood for women.
What are the normal RBC levels?
Normal Red Blood Cell (RBC) Count. Men: 4.5 to 5.5 million RBCs per microliter (mcL) or 4.5–5.5 x 10 12 /liter (L). Women: 4.0 to 5.0 million RBCs per mcL or 4.0–5.0 x 10 12 /L. Pregnancy values should be slightly lower
What is the normal value of RBC?
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What does a high RBC level mean?
When the RBC count is higher or lower than the average range, it alerts the doctor that a medical condition could be the cause. The other values from the CBC will be considered, as well as other diagnostic tests. A high RBC count tells us that there has been an increase in oxygen-carrying cells in the blood.
What is normal range for RBC in an urine test?
What is the normal range of RBC in urine? A normal result is 4 red blood cells per high power field (RBC/HPF) or less when the sample is examined under a microscope. The example above is a common measurement for a result of this test. Normal value ranges may vary slightly among different laboratories.
What is the normal RBC for adults?
What is the normal range of RBC for newborns?
What does high RBC mean?
What RBC count is high?
A high red blood cell count is generally considered to be anything above 6.1 million red blood cells for males, 5.4 million for females, and 5.5 for children. Additional tests will help your healthcare provider determine the cause of your high red blood cell count and next steps in your care.
What is a low RBC count?
A low red blood cell count can be a sign of: Anemia. Leukemia, a type of blood cancer. Malnutrition, a condition in which your body does not get the calories, vitamins, and/or minerals needed for good health. Multiple myeloma, a cancer of the bone marrow.
What happens if RBC level is high?
If you have a high RBC count, you could experience symptoms such as: fatigue. shortness of breath. joint pain.
Why would RBC levels be low?
Missing certain vitamins or minerals in the diet because of not eating enough. Low iron levels in blood. Major organ problems (including severe heart, lung, kidney, or liver disease) Red blood cells (RBCs) being destroyed by the body before they're replaced.
What level of RBC is dangerously low?
For men, a normal level ranges between 14.0 grams per deciliter (gm/dL) and 17.5 gm/dL. For women, a normal level ranges between 12.3 gm/dL and 15.3 gm/dL. A severe low hemoglobin level for men is 13.5 gm/dL or lower. For women, a severe low hemoglobin level is 12 gm/dL.
Is 3.87 A low red blood cell count?
Normal RBC ranges differ according to age and sex: Women: 4.2 to 5.4 million/mcL. Men: 4.7 to 6.1 million/mcL. Children: 4.1 to 5.5 million/mcL.
Should I worry if my red blood cell count is high?
High RBC count causes may include: Heart failure, causing low oxygen levels in the blood. Congenital heart disease, a natural heart condition. Polycythemia vera, a condition in which the bone marrow produces high levels of red blood cells.
What causes increased RBC count?
Your body may increase red blood cell production to compensate for any condition that results in low oxygen levels, including: Heart disease (such as congenital heart disease in adults) Heart failure. A condition present at birth that reduces the oxygen-carrying capacity of red blood cells (hemoglobinopathy)
What increases red blood cells?
red meat, such as beef. organ meat, such as kidney and liver. dark, leafy, green vegetables, such as spinach and kale. dried fruits, such as prunes and raisins.
Is low blood count serious?
The most serious complications of low blood cell counts include: Infection. With a low white blood cell count and, in particular, a low level of neutrophils, you're at higher risk of developing an infection. And if you develop an infection when you have a low white blood cell count, your body can't protect itself.
Understanding Your Lab Test Results
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Normal Red Blood Cell Count (Normal RBC Count)
Dr.Megan Ralf. A Medical laboratory Scientist who devoted his life to medical and laboratory sciences, writes his everyday expertise dealing with various pathological conditions through laboratory diagnosis of different body fluids, also participating in many workshops for first aids, infection control, and urgent care.
What is the normal RBC count?
What is the normal count of RBC in the blood? RBC count ranges (Red Blood Cells or erythrocytes) depend on gender and age according to the following table: Adult men: 4.5 – 6.2 million/µl (microliter)
How long do RBCs live?
RBCs have a biconcave shape and with a mean lifespan of 115 days. RBC cells are created in the red bone marrow. The erythropoietin hormone, secreted mainly by the kidney, stimulates the production of RBCs by the bone marrow. If there is a lack of oxygen in the cells of the body there will be an increase in erythropoietin hormone production, ...
Why is my RBC low?
Another possibility for a low RBC count is an excessive bleeding (menstruation, etc.) or kidney disorders that may reduce the production of erythropoietin hormone.
What is the RBC test used for?
What is the RBC count used for? RBC count is used to know the overall health status, the possible existence of an anemia, a general disease or a cancer. The RBC count test should be studied for a better diagnosis along with other blood tests such as the hemoglobin, the hematocrit, MCV (Mean Corpuscular Volume), ...
What are the different types of anemia?
There are different types of anemia for example, iron deficiency anemia (lack of iron), megaloblastic anemia (lack of Vitamin B12 or folic acid) or hemolytic anemia (premature destruction of erythrocytes). Aplastic anemia where the bone marrow does not produce enough new blood cells also cause erythrocytopenia.
What is the red blood cell?
RBC (Red Blood Cells), also called erythrocytes, are the cells that carry oxygen from the lungs to the body tissues. Inside the red blood cells, there is a protein called hemoglobin that can contain iron to bind oxygen molecules and that gives RBC its red color.
What age can you reduce your RBC?
Above 65 years old there is a progressive reduction in the RBC count for both genders. During pregnancy, RBC count is lower than normal and the normal count is specific for each trimester of pregnancy.
What is the RBC count?
An RBC count is the number of red blood cell per a particular volume of blood. It may be reported in millions of cells per microliter (mcL) of blood or in millions of cells per liter (L) of blood.
What does it mean when your RBC is high?
A high RBC count tells us that there has been an increase in oxygen-carrying cells in blood. In some cases, this may indicate that the body is compensating for some condition that is depriving the body of oxygen, 2 in others, the cause may be related to diseases or drugs that alter the production of RBCs.
What does it mean when your RBC is higher than your reference?
When the RBC count is higher or lower than the reference range, it alerts the physician that there could be an underlying condition. The other values from the CBC will be considered, as well as other diagnostic tests.
What does low RBC mean?
A low RBC count indicates a decrease in oxygen-carrying cells in the blood, otherwise known as anemia. The causes can be numerous, ranging from infections and deficiencies to malnutrition to malignancies, including: 2
Why do doctors use RBC?
Based on the composition of blood cells, doctors can better know where to focus their investigation and which areas they can probably avoid. An RBC count may also be used to monitor treatment for blood disorders or medications that affect your RBC.
How to reduce RBC?
If you have a high RBC count: 1 Exercise to improve heart and lung function. 2 Eat less red meat and iron-rich foods. 3 Avoid iron supplements. 4 Keep yourself well hydrated. 5 Avoid diuretics, including coffee and caffeinated drinks. 6 Stop smoking, especially if you have COPD or pulmonary fibrosis. 7 Avoid the use of steroids, erythropoietin, and other performance-enhancing drugs.
What is a complete blood cell count?
Instead, it is most often performed as part of a more comprehensive test called a complete blood cell (CBC) count which measures the composition cells in a blood sample. They include: 1 .
Where to get RBC count?
An RBC count is a simple blood test performed at your doctor’s office. You doctor will draw blood from your vein, usually on the inside of your elbow. The steps involved in the blood draw are: The healthcare provider will clean the puncture site with an antiseptic.
What happens if your RBC is low?
If you have a low RBC count, symptoms could include: dizziness, weakness, or lightheadedness, particularly when you change positions quickly.
What are the effects of blood cancer on the blood?
Blood cancers can affect the production and function of red blood cells. They can also result in unusual RBC levels. Each type of blood cancer has a unique impact on RBC count. The three main types of blood cancer are: leukemia, which impairs the bone marrow’s ability to produce platelets and red blood cells.
What is CBC test?
A CBC test measures the number of all components in the blood, including: red blood cells. white blood cells. hemoglobin. hematocrit. platelets. Your hematocrit is the volume of red blood cells in your body. A hematocrit test measures the ratio of RBCs in your blood.
Why is a blood test called a red blood cell count?
It’s also known as an erythrocyte count. The test is important because RBCs contain hemoglobin, which carries oxygen to your body’s tissues . The number of RBCs you have can affect how much oxygen your tissues receive.
Why is my RBC high?
A high RBC count may be a result of sleep apnea, pulmonary fibrosis, and other conditions that cause low oxygen levels in the blood. Performance-enhancing drugs like protein injections and anabolic steroids can also increase RBCs. Kidney disease and kidney cancers can lead to high RBC counts as well.
What are the different types of anemia?
Types of anemia include: iron deficiency anemia, which is often easily treated. sickle cell anemia, which results in abnormally-shaped red blood cells that die quickly. vitamin deficiency anemia, which often stems from low levels of vitamin B-12. All types of anemia require treatment.
Why is my RBC low?
A few reasons why your RBC lab test might be low or high include: Aplastic anemia occurs when damaged stem cells in the blood marrow cause reduced production of red blood cells. Dehydration can cause an abnormally high proportion of red blood cells within whole blood. Heart and lung disorders, that result in reduced oxygenation ...
What causes abnormal RBC?
Sickle cell disease, a condition that mainly affects African Americans and results in the production of malformed hemoglobin that does not efficiently carry oxygen molecules to the tissues, can cause abnormal RBC results. White blood cell cancer. If a disorder reduces the number of white cells in the blood, the RBC count may become elevated by ...
Why do healthcare providers check your RBC?
Why Your Healthcare Provider Checks Your RBC Count. Your healthcare provider will check your red blood cell count routinely, as part of your annual exam. Because RBCs play such an important role in overall health, checking their levels annually can offer early signs of any underlying health issues. Your provider also might test your RBC count ...
What causes red blood cells to be produced?
Kidney disorders can stimulate the production of hormones that cause the bone marrow to manufacture additional red blood cells. Polycythemia vera, a rare type of blood cancer, can cause an overproduction of red blood cells. Sickle cell disease, a condition that mainly affects African Americans and results in the production ...
What are the three types of blood cells?
Your blood contains three types of cells: red, white, and platelets. White cells perform functions related to infection control inside the body. Platelets make the blood clot. And red blood cells (RBCs) carry oxygen to the tissues by transporting hemoglobin. Hemoglobin is a protein attached to red cells that picks up oxygen when ...
Why is my red blood count high?
Heart and lung disorders, that result in reduced oxygenation (such as heart failure), can cause an abnormally high red blood cell count as the body manufactures additional red cells to carry oxygen to the vital tissues.
Is a low red blood cell count normal?
Your red blood cell count may be slightly low or high, which is not necessarily abnormal or anything that needs to be treated. Every human body is unique, and yours may consistently carry a few more or a few less red cells, which is no cause for alarm. Sometimes, though, a disease process can cause red blood cell counts to become very elevated ...
What happens if you test positive for RBCs?
If your urine sample tests positive for RBCs, your doctor will likely start by going over the other results of the test. For example, if your urine also contained certain bacteria or white blood cells, you may have an infection.
What are the different types of hematuria?
There are two types of hematuria: 1 Gross hematuria means blood is visible in your urine. 2 Microscopic hematuria involves RBCs that can only be seen under a microscope.
Can you see RBCs under a microscope?
Microscopic hematuria involves RBCs that can only be seen under a microscope. RBCs aren’t typically found in urine. Their presence is usually a sign of an underlying health issue, such as an infection or irritation of the tissues of your urinary tract.
What is the normal result for a NRBC test?
A normal result is 0 NRBCs/100 WBCs or a complete absence of NRBCs in the blood. Possible causes of NRBCs in the blood include anemia, low oxygen, spleen dysfunction, and bone marrow damage and disorders.
What does NRBC mean in blood work?
Takeaway. Nucleated red blood cells (NRBCs) are immature red blood cells produced in the bone marrow. In adults, their presence in the blood indicates a problem with bone marrow integrity or red blood cell production. Your doctor may order an NRBC test if other blood test results (such as CBC) indicate blood cell issues.
What causes NRBCs to be released into the body?
Sarcoidosis (inflammation in the lungs, skin, eyes, and lymph nodes) 4. RBC Production Outside of the Bone Marrow ( Extramedullary Hematopoiesis) Bone marrow damage or severe anemia can lead to the production of red blood cells in other organs such as the liver or spleen, which may release NRBCs into the circulation.
What conditions can prevent the removal of NRBCs from the blood?
Conditions that affect the spleen can prevent the removal of NRBCs from the blood. 3. Bone Marrow Damage. Conditions that damage the bone marrow can break down the blood-bone marrow barrier and release NRBCs and into the circulation.
What causes a nucleated RBC to show up in the blood?
These include [ 5, 1, 7 ]: NRBCs can show up in the blood due to low oxygen caused by blood loss or different health conditions. 2. Spleen Dysfunction.
Why do NRBCs show up in blood?
NRBCs can show up in the blood due to low oxygen caused by blood loss or different health conditions. 2. Spleen Dysfunction. Normally, spleen clears nucleated RBCs that escape from the bone marrow. Conditions that affect spleen function can result in the presence of nucleated RBCs in the blood. These include [ 5, 1 ]:
What does NRBC mean?
Nucleated red blood cells (NRBC) are immature red blood cells. Their presence in the bloodstream may indicate serious problems with RBC production or the bone marrow. Read on to learn more details about the presence of NRBC in your blood and what you can do about it.
Why is my red blood cell count higher than normal?
A red blood cell count that's higher than normal (erythrocytosis), or high hemoglobin or hematocrit levels, could point to an underlying medical condition , such as polycythemia vera or heart disease.
What happens if your platelet count is below normal?
If your platelet count is outside the normal range, you'll likely need additional tests to diagnose the cause. For specifics about what your complete blood count results mean if they fall outside the normal ranges, talk to your doctor. By Mayo Clinic Staff.
How are hemoglobin and hematocrit related?
The results of your red blood cell count, hemoglobin and hematocrit are related because they each measure aspects of your red blood cells. If the measures in these three areas are lower than normal, you have anemia. Anemia causes fatigue and weakness.
What does it mean when your white blood count is high?
A high white blood cell count can also be a reaction to medication. Platelet count. A platelet count that's lower than normal (thrombocytopenia) or higher than normal (thrombocytosis) is often a sign of an underlying medical condition, or it may be a side effect from medication.
Why do you need a complete blood count?
A complete blood count is a common blood test that's done for a variety of reasons: To review your overall health. Your doctor may recommend a complete blood count as part of a routine medical examination to monitor your general health and to screen for a variety of disorders, such as anemia or leukemia. To diagnose a medical condition.
Why is my white blood count low?
A low white blood cell count (leukopenia) may be caused by a medical condition, such as an autoimmune disorder that destroys white blood cells, bone marrow problems or cancer. Certain medications also can cause white blood cell counts to drop.
Why do doctors use complete blood counts?
If you've been diagnosed with a blood disorder that affects blood cell counts, your doctor may use complete blood counts to monitor your condition. To monitor medical treatment. A complete blood count may be used to monitor your health if you're taking medications that may affect blood cell counts.
What is the normal RBC for adults?
RBC normal range for Adult humans. Adult red blood cells count less than children and going to be nearly the same for all adult unless there is a modification to the body or underlying illness. Males 13, 14, 15, 16, 17, and 18 years old will have normal red blood cells count 4.2 – 5.6 million cells/uL. Females 13, 14, 15, 16, 17, and 18 years old ...
What is the normal range of RBC for newborns?
At birth RBC count 4 – 6.5 million per microliter of blood . When neonate complete 1 day ...
What does high RBC mean?
High RBC count has the medical term erythrocytosis, or polycythemia.
Complete Blood Count
Normal Ranges
- An RBC count is the number of red blood cells per a particular volume of blood. It may be reported in millions of cells per microliter (mcL) of blood or in trillions of cells per liter (L) of blood. The "normal" or "reference" range can sometimes vary depending on whose blood is being tested. If you live in a high-altitude city like Denver, your bl...
High Or Low RBC Counts
- When the RBC count is higher or lower than the average range, it alerts the doctor that a medical condition could be the cause. The other values from the CBC will be considered, as well as other diagnostic tests.
Treatment
- Treatment of an abnormal RBC count is typically focused on addressing the underlying condition. These treatments will vary widely depending on the cause. But if the cause is a nutritional deficiency, medication use, or a chronic condition, there may be things you can do to not only improve your blood countbut your overall health too.
Summary
- A red blood cell count is used to measure the number of oxygen-carrying red blood cells in your body. When you have a high blood count or a low blood count, it's a sign that you may be sick. Your doctor will also monitor your RBC count when you have a blood disorder or you're taking medicines that affect it. If you have an abnormal RBC count, your doctor will treat the medical co…