Final answer:
The patient presents with symptoms that could indicate a severe infection leading to complications such as sepsis or impaired kidney function. The combination of symptoms and travel history might also suggest a serious bacterial or viral illness requiring immediate medical care.
Step-by-step explanation:
The patient with severe abdominal pain radiating to the back, accompanied by other symptoms such as fever, nausea, swollen lymph nodes, and a potential history of spinal cord compression, indicates a medical condition that requires prompt attention. Given the additional symptoms of fever, nausea, vomiting, and a history of travel to Cambodia and Vietnam, the most likely complication the patient could develop over the next few days to weeks is an infection that may result in sepsis or impaired kidney function due to possible scarring of the kidneys.
Furthermore, the travel history suggests the possibility of an infectious disease, which if coupled with bloody vomit and diarrhea could point towards a severe bacterial or viral illness that has systemic implications.