B. This injury most likely occurred during the tertiary phase.
What is blast injury?
A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion.
Thus, during your assessment of a patient who experienced a blast injury, you note that he has a depressed area to the front of his skull, this injury most likely occurred during the tertiary phase.
The complete question is below:
A. as a direct result of the pressure wave.
B. during the tertiary phase.
Learn more about blast injury here: https://brainly.com/question/2640724
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