<p> 29 Pharmacy 721 Pharmacy Practice mEq practice calculations</p><p>Write your answer in the space provided.</p><p>1. How many milligrams of potassium chloride are in two 8 mEq tablets of Klor-Con (KCl molecular weight = 74)?</p><p>2 x 8 mEq x 1 mmol x 74 mg = 1184 mg 1 mEq mmol</p><p>2. How many milliequivalents of sodium are in 1000 ml of 0.225% NaCl solution (molecular weight = 58)? </p><p>1000 ml x 0.225 g x 1000mg x 1 mmol x 1 mEq =38.8 mEq 100 ml 1 g 58 mg mmol</p><p>3. How many grams of NaCl are in 50 ml of a solution that contains 4.3 mEq/ml? </p><p>50 ml x 4.3 mEq x 1 mmol x 58 mg x 1 g =12.47 g ml 1 mEq mmol 1000 mg</p><p>4. How many milliequivalents of Ca++ are in 10 ml of a calcium gluconate (mw = 430) solution that contains 94 mg calcium gluconate per ml? </p><p>10 ml x 94 mg x 2 mEq x 1 mmol = 4.37 mEq ml mmol 430 mg</p><p>5. How many milliosmoles of dextrose are in 700 ml of a 70% dextrose solution (molecular weight = 180)? </p><p>700 ml x 70 g x 1000 mg x 1 mmol x 1 mOsm = 2722 mOsm 100 ml g 180 mg 1 mmol</p><p>6. How many milliosmoles are in 1 liter of a 0.45% NaCl solution (assume complete dissociation)?</p><p>1000 ml x 0.45 g x 1000 mg x 1 mmol x 2 mOsm = 155 mOsm 100 ml g 58 mg 1 mmol</p><p>7. Potassium chloride for injection comes in 60 ml vials containing 2 mEq/ml. How many milligrams of KCl are in each vial? </p><p>60 ml x 2 mEq x 1 mmol x 74 mg = 8880 mg ml 1 mEq 1 mmol</p><p>29 30 8. The antibiotic ampicillin sodium has 2.9 mEq Na+ per gram. If you prepare an IV with 2 grams of ampicillin in 100 ml NaCl solution, how many milliequivalents of sodium are in the IV? </p><p>2.9 mEq x 2 g = 5.8 mEq 1 g</p><p>100 ml x 0.9 g x 1000 mg x 1 mmol x 1 mEq = 15.5 mEq 100 ml g 58 mg 1 mmol</p><p> mEq Na+ in 2 gm ampicillin soudium_____5.8 mEq______</p><p> mEq Na+ in 100 ml 0.9% NaCl____15.5 mEq______</p><p> total mEq Na+__21.3 mEq______</p><p>30</p>