Question

Intravenous infusion of one litre of 

A. Normal (isotonic) saline increases the ECF more than the ICF volume. 

B. 10 per cent dextrose provides sufficient energy for a sedentary adult for one day. 

C. A suspension of lipids provides 2–3 times the energy of a suspension of carbohydrates with the same concentration. 

D. Isotonic (5 per cent) dextrose raises total body water by 1–5 per cent in the average adult. 

E. An amino acid solution provides between 3–4 times the energy of a carbohydrate solution with the same concentration.

Answer 1

A. True Sodium and chloride remain mainly extracellular. 

B. False It provides less than a quarter of the daily energy requirement. 

C. True A gram of fat when oxidized liberates 2–3 times the energy liberated by a gram of carbohydrate. 

D. True Total body water (about 40 litres) increases to about 41 litres (2.5 per cent increase). 

E. False Amino acids and carbohydrates provide similar energy per unit weight but amino acids are useful for maintaining body tissue proteins.