Final answer:
An elevated erythropoietin level, elevated hematocrit, and normal O2 saturation suggest a response to low oxygen levels in the body.
Step-by-step explanation:
An elevated erythropoietin level, elevated hematocrit, and normal O2 saturation suggest a response to low oxygen levels in the body. When the body senses low oxygen levels, the kidneys release erythropoietin, which stimulates the production of red blood cells in the bone marrow. This leads to an increase in hematocrit, which is the percentage of red blood cells in the blood. Despite the increase in red blood cells, the O2 saturation remains normal, indicating that the body is able to supply enough oxygen to the tissues.