How did the 1898 discovery of blood types affect society? Check all that apply. New ways to preserve and transport blood for blood transfusions were discovered. Blood transfusion safety was improved. Scientists discovered that elements of blood could be separated by centrifuge. Scientists discovered that plasma could be preserved by freezing.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

Carbon dioxide is the correct answer