Final answer:
Patients with suspected spinal injuries should not be transported in a stair chair due to the risk of exacerbating their injury.
Step-by-step explanation:
The patient who should NOT be transported in a stair chair is B. Patient with a suspected spinal injury. This is because moving a patient with a potential spinal injury can cause further harm, including paralysis or other serious complications. A stair chair is typically used for patients who are able to maintain a sitting position and do not have conditions that could be exacerbated by movement. Patients with spinal injuries need to be immobilized and transported on a spine board or in a similar device that restricts movement to prevent further injury.