Which of the following is NOT a sign or symptom of internal bleeding?

The presence of a feeling of euphoria is not typically associated with internal bleeding. Internal bleeding usually produces signs and symptoms that indicate a loss of blood volume or compromised hemodynamics, which can lead to feelings of weakness, anxiety, or confusion rather than a sense of euphoria.

In contrast, excessive thirst is a common response to significant blood loss as the body recognizes the need to compensate for fluid loss. A weak, rapid pulse often indicates that the heart is working harder to circulate the remaining blood, which is a compensatory response to insufficient blood volume. A drop in blood pressure is also a critical indicator of internal bleeding, signaling that the body's circulatory system is struggling to maintain adequate perfusion.

These symptoms paint a clear picture of the physiological stress and compensatory mechanisms that occur in response to internal bleeding, highlighting why the experience of euphoria does not fit within this context.