End
1 :

Hint : 🧪 High sodium needs hypotonic fluid

Correct Answers:

  • 0.45% Sodium Chloride


Rationale :

✳️ A serum sodium level of 156 mEq/L indicates hypernatremia, because the normal sodium range is approximately 135–145 mEq/L.

✳️ Hypernatremia usually represents a deficit of water relative to sodium in the extracellular fluid.

✳️ 0.45% sodium chloride, also called half-normal saline, is a hypotonic IV solution compared with plasma.

✳️ This solution provides free water that helps dilute the elevated serum sodium and restore intracellular hydration.

✳️ Water moves from the extracellular compartment into relatively dehydrated cells, helping correct the cellular dehydration associated with hypernatremia.

✳️ Correction of significant hypernatremia must occur gradually because a rapid reduction in serum sodium can cause excessive water movement into brain cells.

✳️ Excessively rapid correction increases the risk of cerebral edema, seizures, and neurologic deterioration.

✳️ The nurse should closely monitor serum sodium, neurologic status, intake and output, and fluid balance while the client receives IV fluid therapy.


Distractor Analysis :

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