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Topic: Mean cell hemoglobin concentration

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Mean cell hemoglobin

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	Mean corpuscular hemoglobin concentration - Wikipedia, the free encyclopedia
		The mean corpuscular hemoglobin concentration, or MCHC, is a measure of the concentration of hemoglobin in a red blood cell.
		It is diminished ("hypochromic") in microcytic anemias, and normal ("normochromic") in macrocytic anemias (due to larger cell size, though the haemoglobin amount or MCH is high, the concentration remains normal).
		It is calculated by dividing the hemoglobin by the hematocrit.
	en.wikipedia.org /wiki/Mean_cell_hemoglobin_concentration (214 words)

	MedFriendly.com: Mean corpuscular hemoglobin concentration
		Mean corpuscular hemoglobin concentration (abbreviated as MCHC) is an estimate of the concentration (amount) of hemoglobin in a given number of packed red blood cells.
		Hemoglobin is a substance in the blood that carries oxygen to the cells in the body from the lungs.
		Concentration comes from the Latin word "con" meaning "together" and the Latin word "centrum" meaning "center." Put those words together and you have "together (in the) center." In sum, now you can see why the mean corpuscular hemoglobin concentration means the amount of hemoglobin in a given number of packed red blood cells.
	www.medfriendly.com /meancorpuscularhemoglobinc.html (779 words)

	Feline Blood Test Values and What they Mean
		Hemoglobin Hb is the standard abbreviation for hemoglobin, the oxygen-carrying protein pigment in the blood, specifically in the red blood cells.
		The hematocrit is the ratio of the volume of red cells to the volume of whole blood while the red cell count is the number of red blood cells in a volume of blood.
		Hemoglobin, aside from being a transport molecule, is a pigment.
	www.assistfeed.com /BloodTestValues.htm (1274 words)

	Revista Brasileira de Ciência Avícola - Feed restriction on performance and blood parameters of broilers fed diets ... (Site not responding. Last check: 2007-11-01)
		Mean cell volume was obtained by multiplying the hematocrit result by 10 and dividing the result by erythrocyte count.
		Mean cell hemoglobin was calculated by multiplying the value of hemoglobin concentration by 10 and dividing the result by the number of erythrocytes.
		Hemoglobin concentration in the erythocyte was calculated by multiplying hemoglobin by 100 and dividing the result by the hematocrit.
	www.scielo.br /scielo.php?script=sci_arttext&pid=S1516-635X2003000200003 (1963 words)

	Effect of Hemoglobin Concentration on Nucleation and Polymer Formation in Sickle Red Blood Cells -- Corbett et al. 270 ...
		Cell populations with increasing average MCHC, which were prepared by fractionating SRBC by density on discontinuous Stractan density gradients, showed a concomitant increase in the average number of AHP domains/cell after deoxygenation.
		Cells were attached to microscope slides with poly-L-lysine (DP = 66) prior to imaging to restrict the motion of the fixed RBC during the course of the measurement.
		We observed that reversibly sickled cells were the predominant sickle RBC type in the lightest fraction, a mixture of reversibly sickled cells and irreversibly sickled cells were found in the middle densities, and predominantly irreversibly sickled cells were found in the densest fraction.
	www.jbc.org /cgi/content/full/270/6/2708 (5580 words)

	Sickle Cell Review for clinicians (Site not responding. Last check: 2007-11-01)
		Sickle cell diseases are a group of inherited hemoglobin disorders characterized by chronic hemolytic anemia, a heightened susceptibility to infections, end-organ damage, and intermittent episodes of vascular occlusion causing both acute and chronic pain.
		The factors that favor sickle cell formation include deoxygenation of the hemoglobin molecule, increased percentage of Hb S in the red blood cell, increased mean cell hemoglobin concentration which is a function of red cell hydration, low pH, and increased temperature, and blood stasis.
		During sequestration episodes sickle cells are trapped in the spleen, causing rapid fall in the hemoglobin level and enlargement of the spleen.
	www.scinfo.org /prod05.htm (3163 words)

	NORMAL REFERENCE VALUES FOR HEMATOLOGICAL PARAMETERS,
		The objective of this study was to determine the values of hematological parameters, red cell indices and Hb A2 and Hb F levels in normal Saudi children, living in the Central province of Saudi Arabia.
		Hematological parameters, red cell indices, and hemoglobin types (Hb A2 and Hb F) were estimated, and the children were divided into 15 groups depending on the age.
		Mean cell volume and mean cell hemoglobin also showed slight increases, while mean cell hemoglobin concentration remained more or less constant.
	www.kfshrc.edu.sa /annals/213_214/01-035.htm (667 words)

	TKAS -- Lebelo et al. (2001)
		White blood cell counts (WBCC) were determined by diluting the blood with Shaw's fluid (1:20) in a standard white blood cell pipette (Shaw, 1930) and the same procedure was followed as for the red blood cell count (Shaw, 1930; Hesser, 1960).
		An additional explanation for the inability to show a significant change in packed cell volumes between the hypoxic group and healthy fish may have been the use of MS 222 as an anesthetic and heart puncture as a means for obtaining blood.
		The effect of increased packed cell volume on apparent blood viscosity, as occurred in the disease group, was determined by comparing the apparent blood viscosity of the diseased group at its original mean packed cell volume of 40% to healthy striped bass at their mean packed cell volume of 30%.
	www.emporia.edu /kas/trans104/lebelo/lebelo.htm (4100 words)

	Complete Blood Count (CBC) Information on MedicineNet.com
		Normal range for hemoglobin is different between the sexes and is approximately 13 - 18 grams per deciliter for men and 12 - 16 for women (international units 8.1 - 11.2 millimoles/liter for men, 7.4 - 9.9 for women).
		This is a calculated volume derived from the hemoglobin measurement and the hematocrit.
		Platelets are not complete cells, but actually fragments of cytoplasm from a cell found in the bone marrow called a megakaryocyte.
	www.medicinenet.com /complete_blood_count/article.htm (612 words)

	Erythrocytes
		RBC) are blood cells that are primarily involved in transport of oxygen to body tissues and transport of carbon dioxide to the lungs.
		Hemoglobin consists of 4 peptide chains (2 alpha and 2 beta chains) and 4 heme molecules.
		Hemoglobin is measured as mean cell hemoglobin (MCH) of mean cell hemoglobin concentration (MCHC)
	www.cvm.umn.edu /academics/course_web/current/cvm5220/weiss/cells/erythro.htm (1152 words)

	eMedicine - Macrocytosis : Article Excerpt by: Wendy Brick, MD
		The amount of hemoglobin in the cell increases proportionately, so the mean cell hemoglobin concentration (MCHC) remains within normal limits.
		Patients with hepatic disease and obstructive jaundice have a macrocytosis that is secondary to increased cholesterol and/or phospholipids deposited on the membranes of circulating RBCs.
		The macrocytosis associated with COPD is attributed to excess cell water that is secondary to carbon dioxide retention.
	www.emedicine.com /med/byname/macrocytosis.htm (694 words)

	Information (Site not responding. Last check: 2007-11-01)
		Hemoglobin concentration is a more precise term than hemoglobin since the amount of hemoglobin per unit volume (L) is measured.
		The hemoglobin concentration can vary considerably depending on the patient's state of hydration.
		Hematocrit is measured by the direct reading of a blood-filled tube that has previously been centrifuged, or it is calculated from the hemoglobin by an electronic cell counting device.
	www.aum.iawf.unibe.ch /HemoSurf/Demo_E/Info/PaRB.htm (645 words)

	Norwich Hep C page (Site not responding. Last check: 2007-11-01)
		HEMOGLOBIN (HGB) Hemoglobin is the main transport of oxygen and carbon dioxide in the blood.
		W.B.C. (White Blood Cell Count) The white blood cell's main function is to fight infection, defend the body by phagocytosis against invasion by foreign organisms, and to produce, or at least transport and distribute, antibodies in the immune response.
		ANION GAP (Sodium + Potassium - CO2 + Chloride) The anion gap is used to measure the concentration of cations (sodium and potassium) and the anions (chloride and CO2) in the extracellular fluid of the blood.
	www.norwich-hepc.org.uk /bloodpanel.html (4799 words)

	The District of Columbia Academy of Veterinary Medicine
		The hemoglobin concentration is probably the most accurate (and the red cell count the least accurate) of the three analytes needed to calculate the red cell indices.
		That is to say, the hemoglobin multiplied by 3 should approximate the hematocrit or the hematocrit divided by 3 should approximate the hemoglobin.
		The concentrated preparation is prepared by removing the supernatant and resuspending the cell button by gently flicking the test tube bottom.
	www.dcavm.org /02nov.htm (6019 words)

	Lupus: Support and Survival (Site not responding. Last check: 2007-11-01)
		Hemoglobin is the main transport of oxygen and carbon dioxide in the blood.
		The white blood cell's main function is to fight infection, defend the body by phagocytosis against invasion by foreign organisms, and to produce, or at least transport and distribute, antibodies in the immune response.
		The anion gap is used to measure the concentration of cations (sodium and potassium) and the anions (chloride and CO2) in the extracellular fluid of the blood.
	www.itzarion.com /lupus-bloodlabs.html (5026 words)

	July 2004 Queries and Comments - College of American Pathologists (Site not responding. Last check: 2007-11-01)
		One hospital spins a hematocrit and then manually replaces all hemoglobin parameters, such as hemoglobin, mean corpuscular hemoglobin, and mean corpuscular hemoglobin count, with asterisks so those results are unavailable.
		Lipemia interferes with the accurate determination of hemoglobin, or Hb, by spectroscopy on most hematology analyzers, but it does not generally interfere with determinations (especially impedance based) of red blood cell count, white blood cell count, and platelet count.
		Since hematology analyzers measure mean cell volume, RBC, and Hb, and determine hematocrit, mean cell hemoglobin, and mean cell hemoglobin concentration, an inaccurate Hb affects the hematology result and those derived from it.
	www.cap.org /apps/docs/cap_today/q_and_a/qa_07_04.html (1257 words)

	Lab FAQ's
		A blood count is a measurement of the amounts and types of blood cells in your body.
		It measures your white blood cells (WBC), red blood cells (RBC), hemoglobin (HGB), hematocrit (HCT), platelets (PLT), the size of the red cells (MCV), as well as the mean cell hemoglobin (MCH) and mean cell hemoglobin concentration (MCHC).
		This can cause your red blood cells and platelets to be crowded and interrupts their development.
	www.bahamascancercare.com /new_page_3.htm (706 words)

	MedlinePlus Medical Encyclopedia: RBC indices
		Red blood cell (RBC) indices are part of the complete blood count (CBC) test.
		Hemoglobin concentration (hemoglobin amount relative to the size of the cell) per red blood cell (MCHC)
		The values for MCHC, and MCH are derived from the hemoglobin (Hgb), hematocrit (Hct), and red blood cell count (RBC) by mathematical calculations:
	www.nlm.nih.gov /medlineplus/ency/article/003648.htm (744 words)

	CBC definition - Medical Dictionary definitions of popular medical terms
		Hemoglobin is the protein molecule within red blood cells that carries oxygen and gives blood its red color.
		The average amount of hemoglobin in the average red cell.
		A CBC measures the concentration of white blood cells, red blood cells, and platelets in the blood.
	www.medterms.com /script/main/art.asp?articlekey=9982 (522 words)

	Hemathology Unit - Laboratory 1 - Pathology 6000 Laboratory - Department of Pathology - UCHSC
		Scatter-plot B plots the size determination (the same as in scatter-plot A) on the y-axis against another side scatter determination (“lobularity”) on the x-axis as a means of differentiating the various white cell populations.
		Use the scatter plot on the right side to determine where normal peripheral white blood cells are on scatter-plot A on the screen and on your print-out.
		Figure 3 shows where normal peripheral white blood cells are on scatter-plot A. For interest’s sake, it also shows where they are on scatter-plot B. Note that the absolute counts for the white blood cells on the screen are fled out.
	www.uchsc.edu /pathology/6000/hematology/hemlab1.htm (1092 words)

	Pharmacokinetics and Hematological Effects of the PEGylated Thrombopoietin Peptide Mimetic GW395058 in Rats and Monkeys ...
		hemoglobin, and RBC indices (mean cell hemoglobin [MCH], mean
		Averaged plasma concentrations (GW395058 equivalents ng/ml plasma) determined by RIA or TPOr biological activity assay are shown.
		Average plasma concentrations (GW395058 equivalents ng/ml plasma) determined by RIA are shown.
	stemcells.alphamedpress.org /cgi/content/full/17/6/316 (4152 words)

	Red Blood Cell Morphology (Site not responding. Last check: 2007-11-01)
		Burr cell - RBC with cytoplasmic projections, thin and pointed. These are seen in renal failure and should be distinguished from artifactually crenated red blood cells.
		Target cells - thin RBC with distribution of hemoglobin in the center and at the periphery giving a "bullseye" appearance. These are seen in liver disease, hemoglobinopathies, hypochromic anemias, and asplenia.
		Nucleated red blood cell - these are not normally seen in the peripheral blood and are indicative of an abnormal state, such as severe anemia, primary marrow disorder, or marrow replacement.
	heme-coag.uthscsa.edu /wwwpearls/00anemia.html (465 words)

	NEJM -- Diagnosis from the Blood Smear
		The blood smear in Panel A depicts acute hemolysis in glucose-6-phosphate dehydrogenase (G6PD) deficiency, with the presence of a "bite" cell, or keratocyte (arrow).
		Panel B shows myelodysplastic syndrome, with a blast cell (arrow) and two neutrophils that have hypolobulated nuclei, one of which is binucleated and the other hypogranular.
		Panel D shows target cells (short arrow), acanthocytes (long arrow), and a Howell–Jolly body (arrowhead) — all features of hyposplenism in a blood smear from a patient with iron-deficiency anemia and splenic atrophy as features of celiac disease.
	content.nejm.org /cgi/content/full/353/5/498?ijkey=D9HQBdsHtOFSM&keytype=ref&siteid=nejm (3345 words)

	eMedicine - Macrocytosis : Article by Wendy Brick, MD
		In acute or severe anemia, the volume of hemoglobin in the blood is inadequate to provide appropriate oxygenation of the tissues.
		Macrocytosis in patients with COPD is attributed to excess cell water secondary to carbon dioxide retention.
		Nucleated RBCs, teardrop cells, decreased and/or large platelets, and immature WBCs are often present in myelophthisic disease and leukemias.
	www.emedicine.com /med/topic1381.htm (2869 words)

	Diagnose-Me: Complete Blood Count
		A set of measurements that are generally determined by specially designed machines that analyze the different components of blood in less than a minute.
		Normal range varies slightly between laboratories but is generally between 4,300 and 10,800 cells per cubic millimeter.
		Normal range for hemoglobin is different between the sexes and is approximately 13 - 18 gm/dl for men and 12 - 16 for women (international units 8.1 - 11.2 millimoles/liter for men, 7.4 - 9.9 for women).
	www.diagnose-me.com /glossary/G1492.html (674 words)

	Frequently Asked Questions - Hematology Oncology Associates of Rockland PC - Oncology, Hematology, Disorders, ...
		Cancer cells, white blood cells, red blood cells, and platelets are all fast-growing cells.
		Because chemotherapy does not know the difference between them, these cells are all affected during treatment.
		Your white blood cell count, red blood cell count, and platelet count may all go down.
	www.rocklandhemonc.com /hoa-faqs.htm (757 words)

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