If a PN solution contains 70 g of protein, the nitrogen content would be closest to:

If a PN solution contains 70 g of protein, the nitrogen content would be closest to:

• A. 16 g
• B. 11 g
• C. 8 g
• D. 14 g

Answer: (B)

Protein contains about 16% nitrogen, so nitrogen content can be found by multiplying protein grams by 0.16 (or dividing by 6.25). For 70 g of protein, nitrogen = 70 × 0.16 = 11.2 g, which rounds to about 11 g. That’s why 11 g is the closest value. If you use the alternative method, nitrogen = protein ÷ 6.25, and you get 70 ÷ 6.25 = 11.2 g, confirming the result. The other numbers would correspond to different protein amounts (for example, about 50 g protein would give ~8 g nitrogen, about 87.5 g protein would give ~14 g nitrogen, etc.), but with 70 g of protein the best match is ~11 g.

Protein contains about 16% nitrogen, so nitrogen content can be found by multiplying protein grams by 0.16 (or dividing by 6.25). For 70 g of protein, nitrogen = 70 × 0.16 = 11.2 g, which rounds to about 11 g. That’s why 11 g is the closest value. If you use the alternative method, nitrogen = protein ÷ 6.25, and you get 70 ÷ 6.25 = 11.2 g, confirming the result. The other numbers would correspond to different protein amounts (for example, about 50 g protein would give ~8 g nitrogen, about 87.5 g protein would give ~14 g nitrogen, etc.), but with 70 g of protein the best match is ~11 g.