You are assessing a 13-year-old male patient who has been involved in a bicycle accident. This patient would be classified as being in which stage of life?

Which of the following is typical of the trajectory of a knife when a female assailant stabs someone?

A) The trajectory is lateral: right-to-left if she is right-handed and left-to-right if she is left-handed. B) The movement is downward, as the assailant raises the knife and swings downward. C) The movement is upward, as the assailant drives upward with the knife. D) The trajectory tends to be in a horizontal plane at the level of the assailant's shoulder.

The best way to prevent errors in the laboratory is to ensure:

a. Purchasing quality instruments from reputable vendors b. Hiring only well-trained, conscientious workers c. Having quality management d. Performing external quality control procedures