Final answer:
Respect a patient's decision to refuse treatment by documenting their refusal and obtaining signatures, while ensuring they are adequately informed about their choice.
Step-by-step explanation:
When encountering a conscious and competent patient who refuses treatment and transport, the correct action is to document the patient's refusal thoroughly and obtain necessary signatures. You should respect the patient's autonomy and decision-making capacity, without insisting on treatment or transport, or using force. Moreover, it is important to ensure that the patient is fully informed about their condition and the potential risks of refusing treatment, in order to make an educated decision. Nonetheless, the primary concern should be to provide support and respect for the patient's choices, documenting the interaction in detail.