In this protocol, what is the role of 3% hypertonic saline?

In this protocol, what is the role of 3% hypertonic saline?

• A. Used only as bolus
• B. Used for maintenance after bolus
• C. Not used
• D. Used for maintenance without initial bolus

Answer: (B)

The main idea here is that this solution is used to sustain correction after an initial rapid start. A 3% hypertonic saline bolus quickly raises serum sodium and osmolality, which can be crucial for urgent stabilization. After that quick push, the protocol moves to a maintenance plan with 3% saline to keep the correction ongoing without needing repeated large boluses. Using it only as a bolus would let the effect wear off and could require more boluses; using it for maintenance without any initial bolus would not achieve that rapid correction when it’s needed. The maintenance approach balances effectiveness with safety, since continued hypertonic saline requires careful monitoring to avoid overcorrection or fluid overload.

The main idea here is that this solution is used to sustain correction after an initial rapid start. A 3% hypertonic saline bolus quickly raises serum sodium and osmolality, which can be crucial for urgent stabilization. After that quick push, the protocol moves to a maintenance plan with 3% saline to keep the correction ongoing without needing repeated large boluses. Using it only as a bolus would let the effect wear off and could require more boluses; using it for maintenance without any initial bolus would not achieve that rapid correction when it’s needed. The maintenance approach balances effectiveness with safety, since continued hypertonic saline requires careful monitoring to avoid overcorrection or fluid overload.