Problem
A. Identify all four plates in the unknown presumptive test photo. Explain each result across the columns 1, 2, 3, 4. You only need to say: Positive or Negative.
B. Identify the results of the OBTI test. Positive or Negative for WHAT kind of blood?
C. What is the importance of a positive test, a negative test, and a blank?
D. Describe a scenario in which you would use luminol.
E. Calculate the impact angle of a blood droplet you have measured to be 2.2mm wide by 4.5mm long.