The Disability component of the TNCC primary survey evaluates which aspect?

The Disability component of the TNCC primary survey evaluates which aspect?

• A. Vital signs.
• B. Neurological status including level of consciousness.
• C. Airway patency.
• D. Circumferential injuries.

Answer: (B)

Disability focuses on neurological status and level of consciousness. In the TNCC primary survey, this quick neuro check is done to catch early brain function changes that could signal injury or inadequate perfusion. You assess alertness and orientation using a simple scale such as AVPU or a rapid Glasgow Coma Scale, noting how the patient responds to commands or to pain and whether there is normal or abnormal motor activity. Pupil size and reactivity, plus gross limb movement, are also reviewed to gauge neurological integrity. This snapshot helps you recognize deterioration from factors like head injury, hypoxia, or shock affecting brain function, guiding urgent actions. Airway patency belongs to the Airway component, not Disability. Vital signs are part of the overall physiologic assessment during the primary survey, and circumferential injuries are evaluated during the broader examination (including exposure/secondary survey), not the neurological check.

Disability focuses on neurological status and level of consciousness. In the TNCC primary survey, this quick neuro check is done to catch early brain function changes that could signal injury or inadequate perfusion. You assess alertness and orientation using a simple scale such as AVPU or a rapid Glasgow Coma Scale, noting how the patient responds to commands or to pain and whether there is normal or abnormal motor activity. Pupil size and reactivity, plus gross limb movement, are also reviewed to gauge neurological integrity. This snapshot helps you recognize deterioration from factors like head injury, hypoxia, or shock affecting brain function, guiding urgent actions.

Airway patency belongs to the Airway component, not Disability. Vital signs are part of the overall physiologic assessment during the primary survey, and circumferential injuries are evaluated during the broader examination (including exposure/secondary survey), not the neurological check.