Investigation of choice in a person brought with traumatic paraplegia is:
**Core Concept**
Traumatic paraplegia results from spinal cord injury, which can lead to various complications, including respiratory failure, autonomic dysfunction, and pressure ulcers. In this context, early identification of potential complications is crucial for appropriate management.
**Why the Correct Answer is Right**
The investigation of choice in a person with traumatic paraplegia is the chest X-ray. This is because paraplegia patients are at high risk for respiratory complications, such as atelectasis and pneumonia, due to decreased mobility and muscle paralysis. A chest X-ray can quickly identify these complications, allowing for prompt initiation of treatment. Additionally, a chest X-ray can help identify any potential causes of respiratory distress, such as pneumothorax or pleural effusion.
**Why Each Wrong Option is Incorrect**
**Option A:** MRI is not the initial investigation of choice in traumatic paraplegia, as it is more expensive and less readily available than a chest X-ray. While MRI can provide valuable information on spinal cord injury, it is not necessary for initial assessment.
**Option B:** CT scan is not the preferred initial investigation for traumatic paraplegia, as it is more expensive and exposes the patient to higher levels of radiation. CT scan may be used in certain situations, such as suspected spinal cord injury or other complications, but it is not the first-line investigation.
**Option C:** Ultrasound is not a suitable initial investigation for traumatic paraplegia, as it is not sensitive for detecting respiratory complications or other potential causes of respiratory distress.
**Clinical Pearl / High-Yield Fact**
In patients with traumatic paraplegia, early identification of respiratory complications is crucial, and a chest X-ray is a quick and effective way to do so. Remember the "3 As" of paraplegia management: Airway, Autonomy, and Atrophy prevention.
**Correct Answer:** C.