ARRT Patient Care Practice Exam

Which of the following is essential for a completed informed consent?

1. Verbal agreement only

2. Signature of the patient only

3. Signature of a witness only

4. Signature of the patient along with a witness

The correct answer is: Signature of the patient along with a witness

For informed consent to be completed properly, it is essential that the patient not only understands the procedure and its risks but also formally acknowledges their agreement to proceed. This is typically documented through a signature from the patient, indicating that they have received the necessary information and consent to the proposed treatment or procedure. The inclusion of a witness's signature adds an additional layer of validation to the consent process. The witness, who is often a healthcare professional present at the time the consent was given, confirms that the patient was informed and understood the information presented, and that consent was given voluntarily. This dual-signature process helps to establish that consent was appropriately obtained and can protect both the patient and the healthcare provider in cases where the validity of the consent might be questioned later. In contrast, relying solely on verbal agreement or just one signature—either the patient's or a witness's—does not fulfill the legal and ethical standards for informed consent, making it insufficient for protecting patient rights and ensuring informed decision-making.