<prompt> Composition of which of the following intravenous fluids has the closest resemblance to plasma ?Isotonic saline15 isotonic saline4.3 dextroseRingers Lactate  <response>: Ringer lactate and hamanns solution are identical to blood One litre of Ringer;s lactate solution contains: 130 mEq of sodium ion 130 mmolL 109 mEq of chloride ion 109 mmolL 28 mEq of lactate 28 mmolL 4 mEq of potassium ion 4 mmolL 3 mEq of calcium ion 1.5 mmolL Ringer;s lactate has an osmolarity of 273 mOsmL the reference range of serum osmolality is 275-295 mosmkg mmolkg. 