Which kind of MI is best seen by looking at the EKG upside down from behind?

A 23-year-old roofer has fallen 20 feet from the roof of a house into shrubs below. Aside from superficial abrasions and complaint of soreness, you detect no obvious injuries. Consequently, the patient states that as long as his legs are not broken, he does not see the need to go to the hospital. As a knowledgeable EMT, your best response would be:

A) "Since this is a work-related injury, you should really be evaluated in the hospital. Workman's comp may not cover you if you do not." B) "From a fall of this height, you may have hurt some internal organs. You really need to be examined." C) "Since you did not lose consciousness, I feel better about having you refuse. Just keep an eye on your feet and watch for swelling." D) "Although you feel okay now, you will most likely be sore later on. Why don't we go to the hospital and ask about some medications for pain?"

Which of the following best describes why the secondary response to an antigen is faster than the primary response?

A) The secondary response uses memory cells, which immediately release antibodies specific to the antigen. B) The secondary response uses memory cells, which immediately release antigens specific to the antibodies. C) The primary response uses B and T cells specific to the antigens. D) The secondary response has fewer steps than the primary response, allowing it to progress faster.