LR

Q: Why "bicarb drip" should not be prepared in Lactated Ringer's (LR) solution?

Answer: LR contains calcium and will bind bicarb to produce calcium carbonate (chalk).

One liter of Lactated Ringer's Solution contains:

• 130 mEq/L of Na+ (but total cations of 137 mEq/L , so is still isotonic).
• 109 mEq/L of Cl−
• 28 mEq/L of lactate
• 4 mEq/L of potassium
• 3 mEq/L of calcium

#electrolytes

Reference:

Singh S, Kerndt CC, Davis D. Ringer's Lactate. 2022 Aug 22. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan–. PMID: 29763209.