- lipids, proteins, and amino acids.
- lipids, amino acids, and electrolytes.
- dextrose, amino acids, and lipids.
- dextrose, lipids, and electrolytes.
Number 3 is correct.
A 3-in-1 TPN solution includes dextrose, amino acids, and lipids. TPN also may be prepared as a 2-in-1 solution, which only includes dextrose and amino acids, with lipids administered separately.