Question

1-Explain why bronchial circulation is an example of true shunt?

2-Cherry Red liquidity is seen in patient that die from what condition?

3-What is ”xolair” (bevacizumab)? Explain its mechanism of action?

Answer 1

1.The lungs is an organ which helps to oxygenate the deoxygenated blood received from the circulatory system from the entire body. Every cells of the human body requires oxygen for surviving and so the lungs too need it.This is done by the bronchial circulation with the help of bronchial arteries. This acts as a counterpart to the pulmonary circulation which supplies oxygenated blood to the entire body.The pulmonary capillaries aid in gas exchanges in the lungs thus making the pulmonary artery to to shunt oxygenated blood to the lungs and keeping it survive and function leading to refer it has a true shunt.

2,The Cherry Red Liquidity is a sign seen only in the dead patients and cannot be used to diagnose when the patient is alive and provide care.Thus happens in carbon monoxide poisoning.

3.Xolair is an anti allergic drug used to treat severe symptoms of allergic asthma.This drug binds to the IgE receptor on the surface and stops its action.If this action is stopped the allergic triggers stimulated on the receptors are blocked leading to prevention of symptoms.