Final answer:
Clients witnessing euthanasia should expect a peaceful cessation of life functions, as voluntary active euthanasia is designed to be a rapid and smooth process, unlike passive euthanasia which can result in a prolonged period before death.
Step-by-step explanation:
When advising a client on what to expect during euthanasia, it is important to provide a professional and accurate description. The process of euthanasia, especially when referring to voluntary active euthanasia, is designed to be a peaceful cessation of life functions. Typically, a lethal dose of medication is administered with the intent to end suffering, and the result is the rapid cessation of patient's life functions. The administration is generally smooth, and the effects of the euthanasia solution should onset quickly.
It is essential to differentiate between active and passive euthanasia, the latter being a more prolonged process where life-sustaining treatments are withheld, not necessarily resulting in immediate death. Factors such as the type of euthanasia, the drugs used, and the individual's health condition can all influence the specific experience of the euthanasia process. However, in the majority of voluntary active euthanasia cases, the patient experiences a relatively quick and peaceful passing without the occurrences of convulsions, discomfort, excessive vocalization, or fear.