$0.99 first weekthen $7.99/week · cancel anytimeStart my first week →
VisaMastercardAmerican ExpressDiscoverApple PayGoogle Pay

For CPT · PBT · NCPT · RPT

Pass your phlebotomy exam on the first try.

600+ phlebotomy practice questions built like the real exam, with every answer explained, even the wrong ones. Order of draw, tube additives, special collections and processing, drilled on your phone until you stop missing them.

Start your first week for $0.99 →$0.99 for 7 days, then $7.99/week. Cancel anytime.
VisaMastercardAmerican ExpressDiscoverApple PayGoogle PaySecure checkout by Stripe
Expert reviewedNo download neededScenario style
Question 8 of 20 · Collection0:42
Order of draw
A draw includes an SST, a lavender EDTA, a gray fluoride and a green heparin tube. Which tube is filled third?
AGreen
BLavender
CSerum separator
DGray
Why B is correct. The order is serum separator, green heparin, lavender EDTA, then gray fluoride.
Why A is wrong. YOUR ANSWER
Green is second, right after the serum tube.
Exam tactic: Serum, heparin, EDTA, fluoride.
64%
Readiness scoreclimbs with every session
Weak spotsfound for you
12 day streakbetween clinicals