Final answer:
A patient ordered 30 ml of KCl every 2 hours should be given 2 tablespoons, as there are 15 ml in 1 tablespoon.
Step-by-step explanation:
If a patient was ordered 30 ml of KCl every 2 hours, to determine how many tablespoons this equates to, you must know the conversion factor between milliliters and tablespoons. One tablespoon is equivalent to approximately 15 ml. Thus, the conversion is simply a matter of dividing the volume in milliliters by the volume of one tablespoon.
30 ml ÷ 15 ml/tablespoon = 2 tablespoons
Therefore, the correct answer is A. 2 tablespoons.