Which of the following may be a non-gastrointestinal symptom that can influence evaluation of Tina’s condition?

Choosing both fatigue and dry skin as potential non-gastrointestinal symptoms influencing the evaluation of Tina's condition is grounded in the understanding that systemic issues can manifest with various symptoms that are not directly related to the gastrointestinal system. Fatigue can be indicative of several underlying conditions, including nutritional deficiencies or metabolic disorders tying back to gastrointestinal health. If Tina has problems with nutrient absorption due to a GI disorder, it may lead to fatigue from lack of energy resources.

Dry skin, on the other hand, can reflect inadequate hydration or essential fatty acid deficiencies, which may occur if gastrointestinal absorption is compromised. Conditions affecting the GI tract can lead to changes in skin health due to malnutrition or other systemic effects, thereby making both fatigue and dry skin relevant to the evaluation of Tina's overall health and specific gastrointestinal issues. Hence, considering both these symptoms provides a more holistic view of her condition and emphasizes the interconnectedness of different body systems.