Which statement by a patient indicates understanding of teaching about managing fluid volume excess at home?

1. I will weigh myself once a week to check for fluid retention.
2. I will call my doctor if I gain more than 0.5 kg (1.1 lb) in one day.
3. I can drink as much fluid as I like because the excess will just shift compartments.
4. I should increase salt intake to prevent losing fluid.

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