Can hemoconcentration occur by persistent vomiting?

Yes, hemoconcentration can occur due to persistent vomiting. When vomiting leads to significant fluid loss, the blood volume decreases while the concentration of red blood cells and other components increases, resulting in hemoconcentration. This condition can lead to dehydration and may impact electrolyte balance and kidney function. It's important to address the underlying cause of vomiting and restore fluid balance to prevent complications.