You are assessing a 30-year-old male patient that had his arm caught in a piece of machinery. By the time you arrive he has been freed. The patient tells you that he does not understand why you were called, but as you inspect the injured limb you notice a small puncture wound. You should have a high index of suspicion of which of the following injuries?

Which of the following statements about ladder maintenance is MOST accurate?

A. Ladders should be painted as needed, at least annually. B. Routine ladder maintenance may be performed by firefighters. C. Routine ladder maintenance requires a trained ladder repair technician. D. Fire service ladders are moisture-resistant, and can be safely stored in damp locations.

Increased sensitivity to which cytokine(s) is thought to be partially responsible for the increased megakaryocyte proliferation of ET?

a. GM-CSF b. IL-3 and IL-6 c. EPO, SCF, and IL-4 d. EPO, MPL, and CSF-G