Red blood cell volume

Mechanism of Action An anabolic steroid that promotes tissue-building processes, increases production of erythropoietin, causes protein anabolism, and increases hemoglobin and red blood cell volume. Therapeutic Effect Controls metastatic breast cancer and helps manage anemia of renal insufficiency. 

Anaemia is the most common disorder of the blood there are several kinds, produced by a variety of underlying causes. Anaemia may be classified by a kinetic approach, which involves evaluating the production, destruction and loss of red blood cells, or a morphologic approach, based on red blood cell size. The morphologic approach uses a quickly available and cheap lab test as its starting point (the mean corpuscular volume (MCV)). MCV is a measure of the average red blood cell volume. 

Normocytic anaemia occurs when the overall haemoglobin levels are decreased, although red blood cell volume remains normal. Causes include ... 

Chromium-51 5lCr 28 days Red blood cell volume... 

Effective renal blood flow (ERBF) can be estimated from ERPF by assuming the extraction ratio is 1 and correcting for the red blood cell volume of the blood (Hct, hematocrit) ... 

Laboratory abnormalities such as increased packed red blood cell volume and total protein, magnesium, and calcium levels are a result of hemoconcentration. Hypoglycemia, seizures, fever, and mental alterations are seen more often in children, perhaps as a reflection of the greater degree of dehydration and electrolyte losses observed with diarrhea in children. Other complications include metabolic acidosis, prerenal azotemia, iatrogenic water intoxication from overrehydration, and aspiration pneumonia. Children, the elderly, and pregnant women are at an increased risk of complications due to cholera. 

The variables x, x2 and x3 in Figure 3.2 could for example represent measurements of iron, red color and red blood cell volume in the blood of patients (the objects). Because all the three variables are correlated, the straight line representation gives a sufficient summary of the data. The three-dimensional coordinate system may be exchanged with a new one-dimensional coordinate system where the new latent variable is a combination of the original three manifest (measured) variables. For a more complex chemical example, suppose chemical composition is measured in a number of lakes. Then the lakes are the I objects and the results of the chemical analyses (e.g., Cl-, NO ", SO4-, Na+, Fe2+, PO4-,... 

Total circulating blood volume was calculated by summing plasma volume and total circulating red blood cell volume. Plasma volume changes in the model are represented by an empirically derived relationship. Upon application of a stimulus, plasma volume changes from the control value to an experimentally determined steady-state value in an exponential manner with a time constant of 1.5 days (2). 

Total circulating red blood cell volume was calculated from experimentally determined values for mean corpuscular hemoglobin (MCH) and mean corpuscular volume (MCV) (2) and the model predictions of total circulating hemoglobin. In response to stimulus, MCH is assumed to remain constant while MCV changes from the control value to a steady-state value (predetermined from the data) in a linear manner during the first 5 days of stimulus. 

Clients diagnosed with polycythemia vera develop hypertension as a result of the increased red blood cell volume. The viscosity of the blood causes increased resistance in the blood vessels. 

Cr 27.8 d Determination of red blood cell volume, spleen imaging, placenta localization... 

An evaluation of the oxygen carrying capacity of the blood of employees (for example by measured red blood cell volume) is considered useful, especially for workers acutely exposed to MC. 

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