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7. Risk Factors

Dehydration can occur from excessive heat and sun exposure without proper hydration, vomiting, and diarrhea. As for oliguria caused by renal failure, it usually occurs in conjunction with another medical condition. Risk factors include a previous or current diagnosis of peripheral artery disease, diabetes, high blood pressure, heart failure, and certain cancers. Advanced age and hospitalization in an intensive care unit for a serious condition can also lead to oliguria.

Risk Factors Oliguria Natali_Mis / Getty Images

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