標題: reduced oxygen supply could be due to respiratory arrest caused by choking [打印本頁] 作者: vsdytehp 時間: 2015-10-30 05:34 標題: reduced oxygen supply could be due to respiratory arrest caused by choking
Lack of Oxygen to the Brain
The human brain utilizes around 20% of the oxygen that is used by our body. Since the brain constantly requires oxygen in order to perform its functions, reduced availability of oxygen can have an adverse impact on the brain function.
The brain cells are extremely vulnerable to the changes in the oxygen supply, and these may start dying as early as five minutes after they are deprived of oxygen. Life threatening situations such as coma or brain death could arise if there is a disruption in the supply of oxygen to the brain for a long period.
A person is diagnosed with cerebral hypoxia when the supply of oxygen to the brain is restricted. This condition is further categorized into diffuse cerebral hypoxia (slightly impaired brain function due to Tiffany And Co Aus a decline in the oxygen levels in the blood), focal cerebral ischemia (stroke affecting a particular part of the brain), massive cerebral infarction (stroke due to blockage of blood vessels that supply blood to the brain), and global cerebral ischemia (drastic Nike Roshe Run reduction in the blood supply to the brain).
Cerebral anoxia refers to a severe form of hypoxia wherein there is a complete lack of oxygen supply to the brain. A hypoxic anoxic injury to the brain or any event that disrupts the blood supply to the brain, even for a short duration, could also cause considerable brain damage.
Hypoxic ischemic encephalopathy refers to the damage that occurs due to a reduction in the oxygen supply to the brain. Here are some of the medical conditions that could be responsible for causing hypoxia.
Lung infections that cause pneumonia could sometimes lead to a lack of oxygen to the lungs and brain.
Bleeding in the brain should be controlled immediately. In the absence of timely treatment, bleeding could lead to the formation of blood clots. This could affect the supply of blood to the brain, which in turn could restrict the supply of oxygen to the brain.
The oxygen supply to the brain could stop in the event of a cardiac arrest.
Ischemic hypoxia is said to occur when the brain does not get enough oxygen. It could occur due to a mini stroke or stroke. Inadequate supply of blood to the brain could be due to internal bleeding or blockage due to blood clots.
Amyotrophic lateral sclerosis is a medical condition that could cause paralysis of the respiratory muscles. Medical conditions that affect the muscles which control breathing could lead to insufficient supply of oxygen to the brain.
The presence of an abnormal growth or tumor in the brain could obstruct the flow of blood and oxygen.
Very low blood pressure could also be a contributory factor for the lack of oxygen to the brain. Extremely low blood glucose levels could also lead to 'brain death'.
Compression of the windpipe (trachea) could also reduce the flow of air to the lungs and the brain.
Hypoxia during Fetal Development
Reduced flow of blood to the placenta or premature placental abruption could adversely affect the oxygen supply to the fetus. Trauma to the Nike Free Run 3 Australia brain during or after delivery could lead to hypoxia. The risk of cerebral hypoxia is higher in case of premature babies. Insufficient oxygen can slow down the placental blood flow, leading to severe complications like cerebral palsy.
Exposure to Toxins
Hypemic hypoxia is said to occur when there is adequate oxygen in the environment, but oxygen levels in the blood Nike Air Max Thea Australia decrease. This type of hypoxia could occur due to Nike Free 3.0 anemia. Inhalation of carbon monoxide could also lead to hypoxia. Inhalation of carbon monoxide leads to the formation of carboxyhemoglobin, which prevents oxygen from binding to hemoglobin.
Besides the aforementioned causes, reduced oxygen supply could be due to respiratory arrest caused by choking, strangulation, or drowning. Hypoxia could also occur at a high altitude due to low partial pressure of oxygen at high altitude. When hypoxia is caused due to an obstruction in the lungs or limited oxygen in the environment, it is classified as hypoxic hypoxia.
Reduced supply of oxygen to the brain could cause decreased motor control and cognitive changes. It could cause symptoms such as:
