Final answer:
For severe dehydration in the case of Ulcerative Colitis, intravenous fluids like normal saline, or a combination of isotonic saline and sodium lactate, are anticipated to correct fluid and electrolyte imbalances.
Step-by-step explanation:
When a patient is admitted with Ulcerative Colitis and is severely dehydrated, the type of fluids anticipated for intravenous administration typically includes solutions that are designed to replace both water and electrolytes. An ordinary NaCl solution, commonly known as saline, may be given parenterally to address the dehydration. In cases where there is a high excretion of fluid containing sodium (Na) and bicarbonate (HCO3), a mixture of two-thirds isotonic saline and one-third sodium lactate should be administered intravenously. This helps in achieving a balance in fluid and electrolyte levels that may be disrupted due to ongoing diarrhea and the inflammatory process associated with Ulcerative Colitis, which may lead to chloride (Cl-) loss as well.
Furthermore, a blood test in a patient suffering from chronic, watery diarrhea for 2 months is likely to reveal signs of dehydration, such as elevated blood urea levels due to hemoconcentration and a potentially lowered glomerular filtration rate. This condition can also lead to uremia as a consequence of dehydration and electrolyte imbalances caused by persistent diarrhea.