Which nursing diagnosis from the Nutritional-Metabolic Pattern would be most appropriate for this client?

Scenario: A 55 year-old client is admitted to the medical floor of the hospital following three days of nausea, vomiting, and diarrhea. Assessments: height = 6’1″, weight = 114 kg, dry mucous membranes, amber urine, poor skin turgor, lung sounds clear, bowel sounds hyperactive, heart sounds normal, but tachycardic. Vital signs: Temp = 99.8, Apical heart rate = 120, Respiratory rate = 24, Blood pressure = 100/60, Oxygen Sat = 93% on room air. Orders: clear liquid diet, activity as tolerates, 0.9% NaCl IV @ 150 cc per hour, Continue home meds: ASA 81 mg PO daily, metoprolol succinate 100 mg PO bid, multivitamin PO 1 tablet daily.

Question: Which nursing diagnosis from the Nutritional-Metabolic Pattern would be most appropriate for this client?