Milliequivalents per liter mEq

Combined electrolyte solutions are available for oral and IV administration. The IV solutions contain various electrolytes and dextrose. The amount of electrolytes, given as milliequivalents per liter (mEq/L), also varies. The IV solutions are used to replace fluid and electrolytes that have been lost and to provide calories by means of their carbohydrate content. Examples of IV electrolyte solutions are dextrose 5% with 0.9% NaCl, lactated Ringer s injection, Plasma-Lyte, and 10% Travert (invert sugar—a combination of equal parts of fructose and dextrose) and Electrolyte No. 2. 

A 48 fear-old male with a three-year history of carcinoma of the colon complains of intense pain in his hips. X-rays suggest tumor infiltrates. His serum Ca is 11.5 milliequivalents per liter (mEq/L). A therapeutic regimen is begun that contains a drug that lowers the serum Ca to 8 9 mEq/L. 

Understanding a water analysis report requires that the information be presented in an acceptable format. For most organizations around the world, it is common practice to use a combination of parts per million (ppm) or its approximate equivalent unit, milligram per liter (mg/1), and to report as whole chemical product, or cation or anion, as appropriate. Also, reporting as milliequivalents per liter (mEq/1) is common, but grains, various degrees, and other units are also used. 

Convert the following chemical units to milliequivalents per liter (meq L1) and milligrams per liter (mg L 1) or parts per million (ppm). 

Intake of potassium occurs from the diet. Potassium is excreted mostly in urine and some in feces. The normal serum potassium is 3.5 to 5.3 milliequivalents per liter (mEq/L). Serum potassium less than 2.5 mEq/L or greater than 7.0 mEq/L can cause cardiac arrest. Kidney disease causes serum potassium to be outside the normal range. 

Sodium is measured in milliequivalents per liter (mEq/L). The normal range of serum sodium is 135 to 145 mEq/L. Sodium moves outside the normal range when there is too much or too little water or if there is a ... 

The concentrations used in Equation (5.1) are in milliequivalents per liter (meq L-1), which can be calculated from milligrams per liter (mg L ) using conversion factors listed in Hem (1985). See Table 5.2. 

Milliequivalents per liter Cmeq/I meq solid 1000 ml brine cmeqy, = 1000 X CN = Cmgfl/eq wt... 

In dealing with electrolytes, it is frequently advantageous to take into account the valence of the ions and to express amounts in equivalents or milliequivalerUs. The equivalent weight is the atomic or molecular weight divided by the valence of the ion. In the case of calcium, for example, 1 milliequivalent equals 40.1 mg divided by 2, (the atomic weight of calcium is 40.1), which is electrochemically equivalent to 1 milliequivalent of Na or 23 mg. Concentrations are measured by the unit milliequivalent per liter, which is abbreviated as meq/liter. We shall make much use of this unit. 

Electrolytes are measured in units called milliequivalents (mEq/L) per liter rather than in milligram weights because of their chemical properties as ions. The... 

Figure 1-3. Four pure HCI solutions containing 10.4, 30.4, 61.0, and 104.0 mEq per liter have been titrated electrometrically with 0.010 N NaOH. Ordinates are numerically equal to the milliequivalents of HCI neutralized. Numbers along the vertical dashed lines represent the number of milliequivalents neutralized at pH 2.5 or 3.4, and the numbers in parentheses represent the completeness of the titration in percentages. (From Moore EW, Scarlata RW. The determination of gastric acidity by the glass electrode. Castroentero/ogy 49 178-188, 1965.)...

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