**Case Study: Increasing Dissolved Oxygen to Treat Gangrene**A patient is suffering from gangrene. To combat this infection, the doctor aims to increase the dissolved oxygen in the patient's blood and tissues. What actions can the doctor take?**Which two answers are correct?**1. Inject oxygen into the patient's blood with an IV.2. Increase the percentage of oxygen in the atmosphere the patient is breathing.3. Reduce the temperature of the patient by turning down the thermostat.4. Increase the total pressure by putting the patient into the hyperbaric chamber.5. Give the patient a chemistry exam.**Multiple Choice Options:**- A. 1 & 2 are correct- B. 2 & 3 are correct- C. 3 & 4 are correct- D. 1 & 4 are correct- E. 1 & 3 are correct- F. 2 & 4 are correct**Please select the correct pair of actions.**

Gangrene is a fatal condition that occurs when there is a lack of blood flow into a large area of tissues which causes a breakdown of tissues and the tissues will die. Gangrene turns the affected area of the skin into greenish-black color. There are two types of gangrene, dry and wet gangrene. Dry gangrene happens when there is no blood supply to the tissues, the area of the skin will become dry, turn black and shrink. Wet gangrene happens if there is an invasion of bacteria into the tissue which makes the tissues swell, smell bad, and drain fluid.The two correct answers are: C. 3 & 4 3. reduce the temperature of the patient by turning down the thermostat. 4. increase the total pressure by putting the patient into the hyperbaric chamber. When the patient temperature increases, it reduces the oxygen level in the blood. So, the thermostat should be turned down by lowering the room temperature which will decrease the body temperature of the patient. A hyperbaric chamber is a device for hyperbaric oxygen therapy in which the inside chamber is pressurized with oxygen. The patient will lie on a padded table that will slide into a transparent plastic tube. The pressure in the chamber will increase slowly to about 2.5 times the normal atmospheric pressure. When a patient is safely exposed to high pressure and oxygen, the blood will carry more oxygen. The oxygen-rich blood decreases the growth of bacteria that live in the tissue which lacks oxygen and helps the wounds to heal easily.