The clue to this question is the term “approximately.” This is a sign that the fluid loss that the doctor is trying to measure cannot be measured properly because there is no actual output that can be gathered. Based on this, it will be safe to say that the answer is A. People may not realize it but they have a tendency to lose a lot of fluid throughout the day.
If the other choices would be chosen, all of these would show that the fluid can be measured. Urinary output can be measured especially if it would be placed in a container. Wound drainage can also be measured because it can be controlled as well as the gastrointestinal tract. Based on the details, A is the right answer to this question.
The skin-rationale: sensible losses are those of which the person is aware, such as through wound drainage, gastrointestinal tract losses, and urination. insensible losses may occur without the persons awareness. insensible losses occur daily through the skin and the lungs.test-taking strategy: note that the subject of the question is insensible fluid loss. use the process of elimination, noting that options b, c, and d are comparative or alike. in options b, c, and d, these types of losses can be measured for accurate output. fluid loss through the skin cannot be measured accurately, only approximated. if you had difficulty with this question, review the difference between sensible and insensible fluid loss.
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