For a patient weighing 80 kg, what is considered a 5% weight gain?

To determine what constitutes a 5% weight gain for a patient weighing 80 kg, you first need to calculate 5% of their total weight. This is done by multiplying the total weight by 0.05 (which is the decimal equivalent of 5%).

Calculating this:

0.05 × 80 kg = 4 kg.

Thus, a 5% weight gain for an 80 kg patient is 4 kg. This is important in clinical settings, as weight changes can influence treatment decisions, nutritional needs, and overall health assessments.

When examining the other answer choices, 2 kg and 3 kg both represent less than 5% of the total weight, while 5 kg exceeds the 5% mark. Therefore, the only correct representation of a 5% weight gain is 4 kg.