"When does Hemoconcentration occur?"
These terms are similar but not identitcal. Persistent vomiting is the kind that continues to happen for a long period. Intractable vomiting is the kind that continues to happen even when you treat it; it is resistant to treatment.
The term for it is hyperemesis, excessive vomiting, such as in hyperemesis gravidarum, the excessive vomiting of pregnancy.
hyperemesis
Death from vomiting is rare but can occur due to severe dehydration, electrolyte imbalances, aspiration of vomit leading to choking or respiratory distress, or underlying medical conditions such as gastrointestinal bleeding or organ failure. If someone experiences persistent vomiting, it's important to seek medical attention to prevent these complications.
hemoconcentration
yes it causes dehydration
Hemoconcentration can occur due to dehydration, which leads to a decrease in plasma volume and an increase in the concentration of red blood cells. It can also be seen in conditions such as burns, where fluid loss causes a relative increase in the concentration of blood components. Other examples include excessive sweating, diarrhea, and certain medical conditions like polycythemia vera.
After the beginning of recovery from the viral illness, the affected person suddenly becomes worse, with the development of persistent vomiting.
Persistent Vomiting
Due to hyper secretion of Human Chorianic Gonadotopin.
Hemoconcentration during blood draws occurs when there is a relative increase in the concentration of blood cells and proteins due to a decrease in plasma volume. This can be caused by various factors, including dehydration, prolonged tourniquet application, or insufficient fluid intake before the procedure. Additionally, physical activity or stress prior to the draw may also contribute to hemoconcentration by affecting blood flow and plasma volume. As a result, hemoconcentration can lead to inaccurate laboratory test results.