The normal range for hemoglobin is: For men, 13.5 to 17.5 grams per deciliter. For women, 12.0 to 15.5 grams per deciliter.
Considering this, what causes hemoglobin levels to be low?
Hemoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body. In many cases, a low hemoglobin count is only slightly lower than normal and doesn't affect how you feel. If it gets more severe and causes symptoms, your low hemoglobin count may indicate you have anemia.
What is normal Hb in blood test?
Hemoglobin (Hbg) measures the amount of the hemoglobin molecule in a volume of blood and normally is 13.8 to 17.2 grams per deciliter (g/dL) for men and 12.1 to 15.1 g/dL for women.
Hemoglobin, or Hb, is usually expressed in grams per deciliter (g/dL) of blood. A low level of hemoglobin in the blood relates directly to a low level of oxygen. In the United States, anemia is diagnosed if a blood test finds less than 13.5 g/dL in a man or less than 12 g/dL in a woman.
The symptoms of moderate to severe iron deficiency anemia include:
- general fatigue.
- pale skin.
- shortness of breath.
- strange cravings to eat items that aren't food, such as dirt, ice, or clay.
- a tingling or crawling feeling in the legs.
- tongue swelling or soreness.
A person with anemia may experience symptoms and signs such as:
- Shortness of breath.
- Decreased energy.
A high hemoglobin count indicates an above-normal level of hemoglobin in your blood. Hemoglobin (often abbreviated as Hb or Hgb) is the oxygen-carrying component of red blood cells. It's generally defined as more than 17.5 grams (g) of hemoglobin per deciliter (dL) of blood for men and 15.5 g/dL for women.
Some of the more common causes of anemia are: loss of blood (traumatic injury, surgery, bleeding, colon cancer, or stomach ulcer), nutritional deficiency (iron, vitamin B12, folate), abnormal hemoglobin structure (sickle cell anemia or thalassemia).
High hemoglobin count occurs less commonly because: Your red blood cell production increases to compensate for chronically low blood oxygen levels due to poor heart or lung function. You have a bone marrow dysfunction that results in increased production of red blood cells.
The hemoglobin test is often used to check for anemia, usually along with a hematocrit or as part of a complete blood count (CBC). Hemoglobin is the iron-containing protein found in all red blood cells that enables RBCs to bind to oxygen in the lungs and carry it to tissues and organs throughout the body.
A low hemoglobin count can be associated with a disease or condition that causes your body to have too few red blood cells. This can occur if: Your body produces fewer red blood cells than usual. Your body destroys red blood cells faster than they can be produced.
About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.
A low hemoglobin level count is generally defined as less than 13.5 grams of hemoglobin per deciliter (135 grams per liter) of blood for men and less than 12 grams per deciliter (120 grams per liter) for women.
The normal range in men is approximately 4.7 to 6.1 million cells/ul (microliter). The normal range in women range from 4.2 to 5.4 million cells/ul, according to NIH (National Institutes of Health) data. Hemoglobin is a protein in the red blood cells that carries oxygen and gives blood its red color.
Blood loss is the most common cause of anemia, especially iron-deficiency anemia. Blood loss can be short term or persist over time. Heavy menstrual periods or bleeding in the digestive or urinary tract can cause blood loss. Surgery, trauma, or cancer also can cause blood loss.
A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood. Having more than 450,000 platelets is a condition called thrombocytosis; having less than 150,000 is known as thrombocytopenia. You get your platelet number from a routine blood test called a complete blood count (CBC).
Reference Range. The reference ranges for mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration are as follows: MCH: 27-33 picograms (pg)/cell in adults. MCHC: 33-36 g/dL in adults.
Hemoglobin is the protein that makes blood red. It is composed of four protein chains, two alpha chains and two beta chains, each with a ring-like heme group containing an iron atom. Oxygen binds reversibly to these iron atoms and is transported through blood.
Hematocrit (Hct) Levels. This is the ratio of the volume of red cells to the volume of whole blood. Normal range for hematocrit is different between the sexes and is approximately 45% to 52% for men and 37% to 48% for women.
The normal number of WBCs in the blood is 4,500 to 11,000 WBC per microliter (4.5 to 11.0 × 109/L). Normal value ranges may vary slightly among different labs. Some labs use different measurements or may test different specimens. Talk to your provider about your test results.
A low hematocrit with low RBC count and low hemoglobin indicates anemia. Some causes include: Excessive loss of blood from, for example, severe trauma, or chronic bleeding from sites such as the digestive tract (e.g., ulcers, polyps, colon cancer), the bladder or uterus (in women, heavy menstrual bleeding, for example)
Published data from Europe and North America indicate that for non-iron-deficient adult Caucasian males, the normal mean packed cell volume (PCV) is 0.46 and the 2.5-97.5 percentile interval is 04.0-0.53. Corresponding values for adult Caucasian females are: mean PCV 0.42; 2.5-97.5 percentile interval 0.36-0.48.
1 month: mean 14.0 g/dL (-2SD: 10.0 g/dL) 2 months: mean 11.5 g/dL (-2SD: 9.0 g/dL) 3-6 months: mean 11.5 g/dL (-2SD: 9.5 g/dL) 0.5-2 years: mean 12.0 g/dL (-2SD: 11.0 g/dL)