Question

Which of the following IV fluids most closely resemble jejunal and ileal electrolyte content?

1: Lactated Ringer's
2: Normal saline
3: 1/2 normal saline
4: D5 0.45% Sodium chloride

Answer 1

Lactated Ringer's solution closely resembles jejunal and ileal electrolyte content.

Step-by-step explanation:

The intravenous (IV) fluid that most closely resembles jejunal and ileal electrolyte content is Lactated Ringer's solution. Lactated Ringer's solution contains electrolytes such as sodium (Na+), potassium (K+), calcium (Ca²+), chloride (Cl¯), and lactate in concentrations that are similar to the electrolyte content of jejunal and ileal fluids. The similarities in electrolyte concentrations make Lactated Ringer's solution more physiologically compatible and suitable for patients requiring intravenous fluid replacement in these regions of the intestine.

The IV fluid that most closely resembles jejunal and ileal electrolyte content is Lactated Ringer's. This solution has a composition of electrolytes that closely matches that of the body's extracellular fluid, including the fluids of the jejunum and ileum. The electrolyte content in Lactated Ringer's, which includes approximately 130 mEq/L Na+, 4 mEq/L K+, 3 mEq/L Ca²+, 109 mEq/L Cl−, and 28 mEq/L lactate, ensures that the overall positive and negative charges are balanced.