Final answer:
Nurses would instruct intravenous drug users to use Bleach for cleaning needles and syringes. Antiseptics are used on living tissues to prevent infection while phenol is a benchmark for disinfectant effectiveness. Hydrogen peroxide is an eco-friendly household disinfectant. so, option B is the correct answer.
Step-by-step explanation:
The product a nurse would instruct intravenous drug users to use for cleaning of needles and syringes between uses is Bleach (A). Bleach, which contains chlorine, a halogen, is effective as a disinfectant and is capable of eliminating a wide range of microbes. It is also recommended for decontaminating surfaces and equipment in healthcare settings.
When considering options for microbial control to prevent infection in tissues, antiseptics (B) are suitable, as they are less harsh than disinfectants and can be used on living tissues. In the context of effectiveness comparisons for chemical disinfectants, historically, phenol (A) has served as a standard benchmark.
For household disinfection, hydrogen peroxide (A) is widely used due to its affordability and because it breaks down into harmless water and oxygen gas, making it an environmentally safe alternative to chlorine-based bleaches.