The nurse is preparing to administer albumin 5% (Albuminar-5), a colloid solution. Which statement is the scientific rationale for administering this medication? 1. Albumin acts directly on the smooth...

The nurse is preparing to administer albumin 5% (Albuminar-5), a colloid solution. Which statement is the scientific rationale for administering this medication?

1. Albumin acts directly on the smooth muscles to cause vasodilatation.

2. Albumin mimics the fight-or-flight response of the sympathetic nervous system.

3. Albumin is a blood volume expander that promotes circulatory volume.

4. Albumin contains dextrose and increases fluid volume in the interstitial space