Question

which of the following determines whether a total parenteral nutrition solution can be administered peripherally?
concentration
osmolality
osmolarity
dilution

Explanation:

To determine if a total parenteral nutrition (TPN) solution can be administered peripherally, osmolality is the key factor. Peripheral veins can tolerate solutions with lower osmolality (typically <900 mOsm/L). Osmolality measures the number of solute particles per kilogram of solvent, and it directly relates to the solution's tonicity and potential for causing phlebitis or vein damage. Concentration is related but osmolality is the specific measure for this determination. Osmolarity is per liter of solution (includes volume of solute) and is less relevant here, while dilution is not the determining factor.

Answer:

B. Osmolality (assuming the options are labeled as A. Concentration, B. Osmolality, C. Osmolarity, D. Dilution; if the original option labels differ, adjust accordingly, but based on the question, the correct option is the one with "Osmolality")