According to the latest medical research, the chance of receiving an HIV-infected transfusion is estimated to be about 1 in 2,000,000 or less. The blood supply is well protected from the AIDS virus. The risk of being infected with HIV from a blood transfusion is very low. The risk of infection exists during what is called the “window period.” This is the time between the actual infection with HIV and when the test can detect the presence of the virus or antibodies to the virus in a person’s blood. An estimate of the length of this period is now 10-12 days. Since the Red Cross began testing blood for the HIV-antibody in early 1985, the risk of HIV-contaminated blood entering the blood supply has dropped dramatically.
Joseph D. McCracken, MD
- internal medicine
Location and Office HoursCancer Care Center of Texas
San Antonio, TX 78212
- Community First Health Plans
- United Healthcare
- Baptist Medical Center
- CHRISTUS Santa Rosa City Centre & Children's Hospital
- Metropolitan Methodist Hospital
- Nix Medical Center
- Nix Specialty Health Center
- South Texas Regional Medical Center
Could I get HIV from receiving blood?
American Red Cross answered
What is the goal of treatment for an AVM in the brain?
The number one goal of treatment of an arteriovenous malformation (AVM) in the brain is to protect function and quality of life. That means using a treatment with a minimal chance of causing neurological problems like weakness, numbness, speech impairment or other neurological deficits or disabilities. The second goal is to eradicate the AVM completely. The treatment of an AVM in large part is an all-or-none situation. Removing half of the AVM does not reduce the risk by half, and removing 90% of the AVM does not reduce the risk. In some cases, disturbing the AVM actually increases the risk of future hemorrhage. So treatment has to be complete; the AVM has to be completely eradicated in order to eliminate the future risk of hemorrhage.
High-pressure, high-blood-flow arteries send small side branches into the AVM core (nidus), or they may dump circulation directly into the AVM. The blood then flows out of the AVM through large draining veins. The goal of surgery is to block each individual blood vessel as it goes into the AVM, remove the nidus or obliterate it, block it off completely and preserve circulation in the normal brain blood flow to prevent a stroke in the surrounding brain areas.
What conditions affect blood flow?
Brigham and Women's Hospital answeredSome conditions which may affect blood flow include, but are not limited to, the following:
See all Blood Basics questions
- Atherosclerosis -- a gradual clogging of the arteries over many years by fatty materials and other substances in the bloodstream
- Aneurysm -- a dilation of a part of the heart muscle or the aorta (the large artery that carries oxygenated blood out of the heart to the rest of the body), which may cause weakness of the tissue at the site of the aneurysm
- Embolus or thrombus -- clots in blood vessels may be either an embolus (a small mass of material such as fat globules, air, clusters of bacteria, or even foreign matter such as a piece of metal from a bullet) or a thrombus (a blood clot)
- Inflammatory conditions -- an inflammation within a blood vessel may occur as a result of trauma (physical trauma, such as from a fall, or chemical trauma, such as from an irritating medication being introduced into the vessel), infection, or an autoimmune disorder (e.g., polyarteritis, Raynaud's disease, and aortic arch syndrome)
- Varicose veins -- occur when the veins of the circulatory system in the legs are exposed over time to pressure that causes stress on the walls and valves of the veins