Which of the following is not measured as output?

In this context, the focus is on understanding the measurement of bodily outputs. Urine, feces, and vomitus are all specific waste products that the body eliminates, which can be measured for various health assessments. These outputs are significant for monitoring a patient's hydration status, kidney function, and gastrointestinal health.

Sweat, while it is a bodily fluid that the body excretes, is typically not measured in standard assessments of output. The quantity of sweat can vary widely based on a person's activity level, environmental conditions, and individual physiology, making it less reliable for clinical measurement in the same way that urine and feces are measured. Hence, sweat does not usually fall under the categorization of "output" in medical terms as it does not serve the same evaluative purpose.