Final answer:
Physicians prescribe the least antigenic form of insulin for clients with type 1 diabetes, typically human insulin or insulin analogs, to reduce immune system resistance since insulin injections are critical for survival in this condition.
Step-by-step explanation:
A physician diagnosing type 1 diabetes would likely prescribe the least antigenic form of insulin for a client with classic manifestations of the disease and a random blood glucose level of 350 mg/dl. This form of diabetes is a chronic autoimmune disorder where the beta cells of the pancreas fail to produce insulin. Given that individuals with type 1 diabetes must have insulin injections to maintain blood glucose levels, prescribing the least antigenic insulin is expected to decrease the risk of the body developing an immune response against the insulin, which is critical as it is needed for survival. The least antigenic insulin today is typically human insulin (recombinant DNA origin) or insulin analogs that have been genetically altered to provide specific benefits such as rapid action or prolonged effect, mirroring normal insulin release. Clients are required to self-administer these insulin injections consistently, with the dose and regimen tailored to each individual's needs.