A low level of hemoglobin or hematocrit is a sign of anemia. Hematocrit is a measure of how much space red blood cells take up in your blood. Hemoglobin is an iron-rich protein in red blood cells that carries oxygen to the body.

To assess true red cell mass, independent radionuclide evaluation of the red cells and plasma (by 51Cr and 131I respectively) must be performed.Д¬opyright В© 1990, Butterworth Publishers, a division of Reed Publishing. This test checks your hemoglobin and hematocrit (hee-MAT-oh-crit) levels. If a patient is severely dehydrated, the hemoglobin and hematocrit will appear higher than if the patient were normovolemic if the patient is fluid overloaded, they will be lower than their actual level. When so assayed, it is subject to the vagaries inherent in obtaining an accurate measurement of the MCV (see Chapter 152).Д«oth the hemoglobin and the hematocrit are based on whole blood and are therefore dependent on plasma volume. Automated cell counters calculate the hematocrit by multiplying the red cell number (in millions/mm 3) by the mean cell volume (MCV, in femtoliters). This value can be determined directly by microhematocrit centrifugation or calculated indirectly. The normal hematocrit for men is 40 to 54% for women it is 36 to 48%. The hematocrit measures the volume of red blood cells compared to the total blood volume (red blood cells and plasma). The hemocrit test also may be used to screen for polycythemia vera (PV), a rare blood disease that increases red blood cells and thickens blood. An erythrocytosis is the consequence of too many red cells this results in hemoglobin levels above normal. Commonly, healthcare providers use the HCT to check for anemia, a blood disorder related to a low RBC countand low hemocrit and low hemoglobinthat causes fatigue, headaches, and dizziness. Hematocrit: Percentage () MCV: fL (femtolitres i.e. A significant deviation means artifacts in the value estimated or the RBCs are smaller or larger than the normal. When the hemoglobin level is low, the patient has anemia. The measured hemoglobin concentration is 3 times the RBC count, and the calculated hematocrit is 3 times the Hb level. The hematocrit test determines the number of red blood cells. A low or high red blood cell count can indicate a medical condition or disease. Red blood cells (erythrocytes) are important because they carry oxygen through your body.

The normal Hb level for males is 14 to 18 g/dl that for females is 12 to 16 g/dl. A hematocrit is a simple blood test done to measure the red blood cells in a personвЂ™s blood. The amount of hemoglobin in whole blood is expressed in grams per deciliter (g/dl). To ensure adequate tissue oxygenation, a sufficient hemoglobin level must be maintained. Hemoglobin (Hb) is the protein contained in red blood cells that is responsible for delivery of oxygen to the tissues. View Lesson 11-1 - Hemoglobin Determination and Hematocrit Test.pptx from SCIENCE 111 at University of the Fraser Valley.

Low hematocrit and hemoglobin in cml