Answer:
The best answer to the question: Which of the following findings indicates a therapeutic effect of the medication? would be: A: Absence of hand tremors.
Step-by-step explanation:
Cyanocobalamin, also known as vitamin B-12, is vital for the correct functioning and formation of the central nervous system, and the correct functioning of all the nerves in the human body. Absence of it due to a disease like pernicious anemia, or infection by bacteria, or other parasites, as well as lack of intake from dietary customs, will lead to malformation, malfunctioning, and damage of the nervous system since this vitaming is central to formation of myelin, and other substances. In order to correct the lack of normal levels of B-12, people receive this medication, which is most commonly used as subcutaneous, or intramuscular injections, and one of the therapeutic effects it will have, and which will be visible, will be the absence, or diminishing of hand, and other body part tremors, as well as the feeling of numbness, or tickling, in body extremeties. So A, would be the best choice.