Question

IN Solution Another solution used clinically in the hospital setting for IV administration is Ringer's lactate, a solution of sodium, potassium, and calcium cations and chloride and lactate anions. This solution is isotonic with 0.996 saline and D5W described in Section $11.5 .$ Write a mathematical statement that indicates the relationship between the concentrations of cations and anions in this solution compared with $0.9 \%$ saline.

Name: Problem 105, Chapter 11: Chemistry The Science in Context
Uploaded: 2020-06-15T23:44:49-08:00
Duration: 1 min 59 s
Channel: Charles Thomas

   IN Solution Another solution used clinically in the hospital setting for IV administration is Ringer's lactate,
a solution of sodium, potassium, and calcium cations and chloride and lactate anions. This solution is isotonic with
0.996 saline and D5W described in Section $11.5 .$ Write a mathematical statement that indicates the relationship between the concentrations of cations and anions in this solution compared with $0.9 \%$ saline.

Chemistry The Science in Context

Thomas R. Gilbert 5th Edition

Chapter 11, Problem 105

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Solved by Expert Charles Thomas

06/15/2020

Step 1

9% saline. This means that the total concentration of cations (positively charged ions) is the same in both solutions. Similarly, the total concentration of anions (negatively charged ions) is also the same in both solutions. Show more…

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IN Solution Another solution used clinically in the hospital setting for IV administration is Ringer's lactate, a solution of sodium, potassium, and calcium cations and chloride and lactate anions. This solution is isotonic with 0.996 saline and D5W described in Section $11.5 .$ Write a mathematical statement that indicates the relationship between the concentrations of cations and anions in this solution compared with $0.9 \%$ saline.

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Key Concepts

Electroneutrality and Ionic Balance

Electroneutrality is the principle that the total positive charge (from cations like sodium, potassium, and calcium) must equal the total negative charge (from anions like chloride and lactate) in a solution. For intravenous fluids like Ringer's lactate, this means that the mathematical relationship can be expressed as the sum of the cation concentrations equaling the sum of the anion concentrations, a balance that is also inherent in isotonic solutions like 0.9% saline.

Isotonic Solutions

Isotonic solutions have the same osmotic pressure as body fluids, ensuring that when administered intravenously they do not cause a net movement of water into or out of cells. This is crucial in clinical settings to maintain cellular integrity and fluid balance, and it underpins why solutions like Ringer's lactate are compared with standard isotonic solutions such as 0.9% saline.

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