|
|
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.
Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.
Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
![Formation of additional eyes in Drosophila caused by the abnormal expression of a master control gen](https://biology-forums.com/gallery/47/medium_33_14_07_11_6_03_48.jpeg)
![Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_36_55_93952400.jpeg)
![Cerebral aneurysm. A cerebral aneurysm is the abnormal dilation of arteries supplying the brain, whi](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_48_57_9406640.jpeg)