Hypothyroidism is treated by giving the patient sufficient thyroxine (thyroid hormone), the most commonly prescribed in Canada being Synthroid and Eltroxin. The average daily dose is 0.125 milligrams (125 micrograms); it is rare to require more than 0.2 milligrams (mg).
The blood consists of a suspension of special cells in a liquid called plasma. In an adult man, the blood is about 1/12th of the body weight and this corresponds to 5-6 litres. Blood consists of 55 % plasma, and 45 % by cells called formed elements. The blood performs a lot of important functions. By means of the hemoglobin contained in the erythrocytes, it carries oxygen to the tissues and collects the carbon dioxide (CO2).
Most of the lactic acid diffuses out of the muscles into the bloodstream and is gone from the muscle tissue within 30 minutes after exercise stops. Subsequently, the lactic acid is picked up by the liver, heart, or kidney cells, which can use it as an energy source. Additionally, liver cells can reconvert it to pyruvic acid or glucose and release it back into the bloodstream for muscle use, or convert it to glycogen for storage.