Which sign would most strongly suggest internal bleeding in a trauma patient who is alert?

• A. Rapid, weak pulse with pallor, diaphoresis, and a decreasing blood pressure indicating shock.
• B. Severe unilateral headache.
• C. Flushing of the face.
• D. Normal vital signs.

Answer: (A)

When internal bleeding occurs after trauma, the body's first response is to compensate to preserve perfusion. This produces a rapid, weak pulse, pale skin from vasoconstriction, and sweating (diaphoresis). If bleeding continues, blood pressure begins to fall, signaling evolving shock. In an alert patient, this combination of signs most strongly points to ongoing internal blood loss and hypovolemic shock.

Other signs like a severe unilateral headache point more toward possible brain injury, flushing of the face is nonspecific, and normal vital signs do not reflect blood loss or impending shock.