how to calculate percent saturation of hemoglobin?
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Oxygen content (ml/dl) is calculated Page 7 as: (1.34 x Hb x SO2) + (0.003 x PO2) where SO2 is percent hemoglobin saturation with oxygen. Venous admixture is normally less than 5% of the cardiac output; values over 10% are considered to be increased. Venous admixture may increase to over 50% in diffuse lung disease.
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We found that hemoglobin level decreases in those adult patients undergoing general anesthesia by 1% per 160.4 milliliters of IV fluid hydration in 105 minutes. This finding was also consistent for hematocrit level (1% decrease per 158.1 milliliters of IV fluid hydration in 105 minutes).
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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. Myoglobin, in muscle cells, accepts, stores, transports and releases oxygen.
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['2×14g=28g. The mass of N is 28g . Percent composition of N is 28g80g×100%=35% .', '4×1g=4g. The mass of H is 4g . Percent composition of H is 4g80g×100%=5% .', '3×16g=48g. The mass of O is 48g . Percent composition of O is 48g80g×100%=60% .']
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Divide actual vapor pressure by saturation vapor pressure and multiply by 100 to obtain a percentage using the formula Relative Humidity (percentage) = actual vapor pressure/saturated vapor pressure x100. The resulting number indicates relative humidity.
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['Iron deficit - equation derivation1 :', 'Assumptions: -Blood volume = 65 mL/kg. -Hgb conc target =14.0 g/dL. ... ', 'Intermediate calculations: -Blood volume (dL) = [65 (mL/kg) x body weight (kg)] / 100 (mL/dL) ... ', 'Final calculations: -Hgb iron deficit (mg) = weight (kg) x (14 - Hgb) x (2.145)']
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Then, multiply the possible number of moles of product by the molecular weight of the product to convert to grams. To determine the percent yield: Divide the actual yield made in the lab by the calculated theoretical amount, and multiply by 100.
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Example: If the column of packed red cells measures 20 mm and the whole blood column measures 50 mm, the hematocrit is 20/50 = 0.4 or (0.4 × 100%) = 40%.
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Higher concentrations of oxygen must be reached in order for hemoglobin to transition from the lower-affinity T-state to the higher-affinity R state. The binding of 2,3-BPG has further physiological consequences. Fetal hemoglobin has a higher oxygen-binding affinity than that of maternal hemoglobin.
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['Partial pressure of oxygen (PaO2) - 75 - 100 mmHg.', 'Partial pressure of carbon dioxide (PaCO2) - 38 - 42 mmHg.', 'Arterial blood pH of 7.38 - 7.42.', 'Oxygen saturation (SaO2) - 94 - 100%', 'Bicarbonate - (HCO3) - 22 - 28 mEq/L.']
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What is a sickle cell solubility test? The sickle cell solubility test is a qualitative test based on the relative insolubility of hemoglobin S compared to other hemoglobin variants. A positive test indicates the presence of hemoglobin S or a non-S sickling hemoglobin.
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Pulse oximeter readings are expressed as a percentage. As stated above, a reading of 94 to 99 percent or higher indicates normal oxygen saturation, and anything below 90 percent is considered to be low blood oxygen, also known as hypoxemia.
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['Use the density of the solution to get the total volume of the solution.', 'Then use the weight percent of solute to determine the amount of substance of the solute.', 'Use the amount of substance of the solute divided by the volume to get molarity.']
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Normal levels are generally between 35.5 and 44.9 percent for adult women and 38.3 to 48.6 percent for adult men. These values may change depending on your age. Hemoglobin. Lower than normal hemoglobin levels indicate anemia.
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Two thirds of body iron is present in circulating red blood cells as hemoglobin. Each gram of hemoglobin contains 3.47 mg of iron; thus, each mL of blood lost from the body (hemoglobin 15 g/dL) results in a loss of 0.5 mg of iron.
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Oxygen saturation (SaO2) is a measurement of the percentage of how much hemoglobin is saturated with oxygen. ... The relationship between oxygen saturation (SaO2) and partial pressure O2 (PaO2) is referred to as the oxyhemoglobin (HbO2) dissociation curve. SaO2 of about 90% is associated with PaO2 of about 60 mmHg.
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A low hemoglobin 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. In children, the definition varies with age and sex.