Final answer:
In a dehydrated patient, the blood urea levels are likely to be higher than normal due to decreased blood volume and reduced Glomerular filtration rate. Other potential abnormalities might include hypochloremia, especially in the context of conditions like ulcerative colitis.
Step-by-step explanation:
Blood Condition in Dehydrated Patient
In a patient who is dehydrated from vomiting and diarrhea, levels of blood urea are likely to be higher than normal. Dehydration causes hemodynamic changes that can lead to increased blood urea levels. When a patient is dehydrated, the blood volume decreases, causing hemoconcentration and thus higher blood urea values. Additionally, dehydration can lead to low blood pressure which in turn reduces the Glomerular filtration rate (GFR), causing a further increase in blood urea levels. In the case of chronic conditions like ulcerative colitis, which involves electrolyte imbalance such as Cl- loss, there might also be associated changes in electrolyte levels, specifically hypochloremia or low chloride.
It is essential to recognize that dehydration does not only involve water loss but can also cause imbalances in electrolytes. The patient suffering may exhibit signs like confusion and excessive thirst due to severe dehydration and its effects on bodily functions. A blood test in such a scenario is likely to reveal higher concentrations of certain blood constituents due to the reduced plasma volume.