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Esophageal pH monitoring is performed for 24 or 48 hours and at the end of recording, a patient's tracing is analyzed and the results are expressed using six standard components. Of these 6 parameters, a pH score called Composite pH Score or DeMeester Score has been calculated, which is a global measure of esophageal acid exposure. A Demeester ...
A urine test strip or dipstick is a basic diagnostic tool used to determine pathological changes in a patient's urine in standard urinalysis. [1] A standard urine test strip may comprise up to 10 different chemical pads or reagents which react (change color) when immersed in, and then removed from, a urine sample.
e. Reference ranges for urine tests are described below: Measurement. Lower limit. Upper limit. Unit. Urinary specific gravity. 1.003 [1] [2] 1.030 [1] [2]
Urine color chart with respect to hydration. Normal urine has a yellow hue, which is primarily caused by the pigment urochrome. The color can range from pale yellow to amber based on the individual's hydration status. Urine can develop a variety of abnormal colors, which may suggest disease in some cases. [26]
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A 1 mmHg change in PaCO 2 above or below 40 mmHg results in 0.008 unit change in pH in the opposite direction. [11] The PaCO 2 will decrease by about 1 mmHg for every 1 mEq/L reduction in [HCO − 3] below 24 mEq/L; A change in [HCO − 3] of 10 mEq/L will result in a change in pH of approximately 0.15 pH units in the same direction.
Beckman model 72 pH meter, 1960. 781 pH/Ion Meter pH meter by Metrohm. A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [2] The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode ...
2755-7. A fecal pH test is one where a specimen of feces is tested for acidity in order to diagnose a medical condition. The pH of human feces is variable but usually alkaline. [1] An acidic stool can indicate a digestive problem such as lactose intolerance, [1] an infection such as E. coli or rotavirus, or overgrowth of acid-producing bacteria ...