<prompt> What is the concentration of Na meqL in normal saline?77109130154  <response>: Normal saline is an isotonic crystalloid. The composition of normal saline is water, sodium: 154meql and 154meql of chloride. Types of crystalloids: Isotonic: D5W, normal saline, Ringers lactate. Hypotonic: Half normal saline, 0.25 NaCl solution. Hypeonic: Dextrose 10 in water, Dextrose 50 in water. Composition of crystalloids: D5W: dextrose 5 in water. Normal saline: water, 154 meqL of Na and chloride. Dextrose 5 and half normal saline: water, dextrose, 77 meql of sodium and water. Dextrose 5 and 0.25 NaCl: dextrose, 34 meql of Na and Cl. Ringers solution: water, 130 meql of Na, 109 meql of Cl, 4 meql of K, 3 meql of calcium. Ringer lactate: water and all electrolytes listed for Ringer lactate plus 28 meql of lactate. Ref: Straight As in Fluids Electrolytes By Lippincott Williams Wilkins, page 242 