Which tissue type will absorb the greatest amount of radiation?

When he is assessing a 3-year-old child for possible injuries after the child fell down a flight of stairs, which of the following would raise the EMT's suspicion that the child may be a victim of physical abuse?

A) The child cries when you palpate his arm. B) Several bruises are located on his knees and shins. C) The child is fearful and appears malnourished. D) Bruises are found on his chest and abdomen.

There are 15 small boxes between R waves on an ECG tracing. What is the heart rate?

A) 150 B) 120 C) 100 D) 20