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.
More than 70 percent of the survey respondents who use hearing aids waited two or more years after noticing a hearing loss to buy an aid; almost 50 percent of them blamed high prices. If you need an aid but worry about the cost, these tips can guide you to some affordable solutions.