The Vel weak phenotype is due to a heterozygous deletion in the same exon, resulting one functional copy of the SMIM1 gene. If a patient who is Vel negative is transfused with Vel positive red blood cells, they may form anti-Vel alloantibodies.
Hearing aids need to be fitted by someone trained specifically in hearing problems. An audiologist or licensed hearing aid provider can make sure your hearing aids fit and work for your type and degree of hearing loss. You also need to consider cost.
Hearing aids are tiny instruments you wear in or behind your ear. They make sounds louder. Things sound different when you wear a hearing aid, but your hearing healthcare professional can help you get used to it. To find the hearing aid that works best for you, you may have to try more than one. Ask your hearing healthcare professional whether you can have a trial period with a few different hearing aids.