Final answer:
An alcohol-based antiseptic, such as isopropanol or ethanol, should be used to sanitize the collection site when drawing blood if the patient is not sensitive to alcohol, as it effectively kills bacteria and viruses.
Step-by-step explanation:
When drawing blood from a patient who is not sensitive to alcohol, the appropriate substance to use for sanitizing the collection site is an alcohol-based preparation, such as isopropanol or ethanol. These substances are effective in killing bacteria and viruses and are commonly used in clinical settings before needle injections. Povidone-iodine and chlorhexidine are also used as antiseptics for skin disinfection, but in this context, where no sensitivity to alcohol is reported, an alcohol-based antiseptic would be suitable.
There is no mention of using hydrogen peroxide or alcohol-based hand sanitizer for this specific purpose within a medical context. Alcohol-based antiseptics are favored because they work fast and leave no sticky residue. Important to note, alcohol should not be used if the skin is visibly dirty because it will not be effective in that state.