Contributory negligence is when the negligence is the plaintiff's full fault or part of there fault. Or simply they are injured because of their own negligence or they may have contributed to their injury.
A defense to a claim of negligence
Answer: An arterial blood gases test or ABG is your answer.
An arterial blood gases (ABG) test measures the acidity (pH) and the levels of oxygen and carbon dioxide in the blood from an artery.
Boys:
-Deepening in Voice
-Growth Spurts
-Pubic Hair Development
-Increased Production of Testosterone and Sperm Cells
Girls:
-Growth Spurts
-Pubic Hair Development
-Menstrual Cycle Begins
-Increased Production of Estrogen and Eggs
You should do this by putting the blood sample in a secure container. Then put it in a bag and label the substance. After this take it to the lab and do what is needed for the experiment.