Which characteristic indicates the necessity for a two-person lift?

The necessity for a two-person lift is indicated by a patient being awkward or unresponsive. This situation often means that the patient's body may not be positioned in a way that allows for safe lifting by one person, due to factors like lack of muscle control, inability to assist with the lift, or unpredictability in their movements.

In cases where the patient is unresponsive, there’s a higher likelihood of needing to manage their body weight and position to prevent any injuries to both the patient and the EMTs. Having a second person helps ensure that the lift can be performed safely and allows for better control of the patient's body, thus reducing the risk of drops or awkward movements during the lift.

The other scenarios, such as a patient being manageable by one EMT or fully conscious and cooperative, suggest that a single EMT could handle the lift effectively on their own. In the case of stable vital signs, while it indicates that the patient is in a stable condition, it doesn't directly inform the requirement for help in physical lifting situations that involve awkwardness or lack of cooperation.