Answer:
d? I don't know to lazy to make Algodoo
Blood urea nitrogen (BUN) and creatinine tests can be used together to find the BUN-to-creatinine ratio (BUN:creatinine). A BUN-to-creatinine ratio can help your doctor check for problems, such as dehydration, that may cause abnormal BUN and creatinine levels.
The distance a ship has traveled in the last 24h w/ what it theoretically should've traveled based on its pitch