What is the difference between isotonic saline, 0.9% saline and 0.45% saline?

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ISOTONIC SALINE IS .. 0.9 .. USEFUL FOR IV ADMINISTRATION .. HYPERTONIC SALINE CONTAINS .. LOW SODIUM .. COMMONLY USED AS MAINTENANCE .. FLUID .. IN THE MANAGEMENT OF .. AC .. INFECTIONS ..

Isotonic used for I V infusion 0’9 is normal saline 0’45 is hypotonic saline

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0.9 % is a isotonic saline. Used for IV purpose. Low concentration of sodium is . Hypotonic saline.

Iso same of blood sod

Isotonic .9 as plasma for dehydration or low electrolytes hypotonic .45 for dilution volume of blood

Percentage of sodium content .

Sodium concentration difference...