Using the Blood Tubes Case Study Data $($Blood$-$Tube$-$Improvement$-$Data.xlsx$),$ was the initial blood tube usage:

Capable

Stable

Not Capable

Out of control

What department had the most unused blood tubes?

Lab

Emergency

Pre$-$Op

Phlebotomy

After improvement, what was the reduction in average blood tube usage?

$175/$day

$200/$day

$225/$day

$250/$day

After improvement, what department had the most unused blood tubes:

Lab

Emergency

Pre$-$Op

Phlebotomy

After improvement, what was the reduction in blood tube usage in the Emergency Department?

$1608$ tubes

$2283$ tubes

$6481$ Tubes

$8754$ Tubes