Answer: a.Non-rebreather mask
Explanation:
A non-rebreather mask is the instrument that is used to deliver oxygen in desaturated patients. The arterial oxygen saturation when goes below 90%. The oxygen flows from the reservoir which has a capacity of 8-15 liters. The patient can breath unassisted through this method. This method delivers the high concentration of oxygen.
According to the given situation, use of non-rebreather mask is ideal to reverse the manifestation of oxygen deficiency in the body.
4 pounds would be the answer!
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Answer: Sometimes your doctor may give you a course of antibiotics during your chemotherapy to help fight off an infection or stop you getting one.
Explanation: