**Core Concept:** Traumatic spinal cord injury can lead to paralysis and urinary incontinence due to damage to the spinal cord and its neural pathways. The approach to evaluate such patients involves thorough history and examination, followed by further diagnostic tests if needed.

**Why the Correct Answer is Right:** In this scenario, the most appropriate approach would be to first assess the patient's neurological status thoroughly, considering the FAST examination (F: Fundamental; A: Abdomen; S: Spine; T: Trauma). This will involve assessing the patient's motor and sensory functions, reflexes, and sphincter function. Since the patient is unable to move his legs and pass urine, the suspicion of a spinal cord injury is high.

**Why Each Wrong Option is Incorrect:**

A. Performing a complete spine examination (C: Chest, Abdomen, Spine) is not specifically relevant in this case, as we are primarily concerned about spinal cord injury.
B. Obtaining a complete trauma history (F: Fundamental, A: Abdomen, T: Trauma) is essential, but not sufficient as it omits the spinal examination.
C. Asking for the patient's chief complaint (F: Fundamental) is important but does not provide a complete evaluation for spinal cord injury.
D. Ordering X-rays and CT scan of the whole spine (C: Chest, Abdomen, Spine, T: Trauma) is relevant for further evaluation, but it does not address the urgency of assessing the patient's neurological status first.

**Core Concept:** In the context of trauma, a high index of suspicion for spinal cord injury is crucial, especially in cases where there is neurological deficit or trauma to the spine.

**Why Each Wrong Option is Incorrect:**

A. Ordering X-rays and CT scan of the whole spine (C: Chest, Abdomen, Spine, T: Trauma) is relevant but does not address the urgency of assessing the patient's neurological status first.
B. Performing a complete trauma history (F: Fundamental, A: Abdomen, T: Trauma) is essential, but it does not address the urgency of assessing the patient's neurological status first.
C. Asking for the patient's chief complaint (F: Fundamental) is important, but does not address the urgency of assessing the patient's neurological status first.
D. Ordering X-rays and CT scan of the whole spine (C: Chest, Abdomen, Spine, T: Trauma) is relevant but does not address the urgency of assessing the patient's neurological status first.

**Core Concept:** In the context of trauma, a high index of suspicion for spinal cord injury is crucial, especially when there is neurological deficit or trauma to the spine.

**Why Each Wrong Option is Incorrect:**

A. Ordering X-rays and CT scan of the whole spine (C: Chest, Abdomen, Spine, T: Trauma) is relevant but does not address the urgency of assessing the patient's neurological status first.
B. Performing a complete trauma history (