ORDER OF DRAW
3, 5
Which tube commonly contains EDTA and is used for a CBC?
Lavender tube
Most common needle gauge for venipuncture in adults is ________.
21 G
When obtaining a urine HCG it is best to get the sample at this time..... why?
AM - First pee - Most concentrated
This type of error happens prior to the actual analysis of a sepcimen.
Preanalytical Errors
These tubes have EDTA as the additive
Pink, Royal blue/tan, Lavender
Which tube contains sodium citrate and is commonly used for PT/INR testing?
Light blue tube
This gauge can be used in patients with smaller or more fragile veins - or in pediatric draws
22-23 G
If your patient fails their glucose challenge test they will need to take this 3 hours test
Glucose Tolerance Test
Basal State
The 10th tube, ______ tube, in the order of draw has the additive Na+ fluoride to prevent glycolysis
GRAY TUBE
Which tube is commonly used to collect trace-element specimens?
This gauge needle is used for blood donation
16 G
You have three blood collection requests: STAT, timed, and routine. Which should be collected first, second, and third?
STAT → timed → routine
1-2 mL
A type and screen is sent to what department in the lab?
Blood Bank
A laboratory needs plasma for a STAT potassium level. This tube contains lithium heparin and is commonly used for plasma chemistry testing
Light Green
Maximum puncture depth when using a lancet on an adult patient
2 mm
Your patient has a peak blood draw ordered for a medication they received at 2330. At what time will the PBT get their blood sample?
0030
When getting a capillary sample, the first blood is most similar to what type of blood?
Arterial blood
You are collecting blood from a patient using a standard venipuncture. You need to collect a light blue, lavender, green, and serum (SST) tube. What is the correct order of draw?
light blue → serum (SST) → green → lavender
This tube contains sodium polyanethol sulfonate (SPS), which helps prevent clotting and supports the recovery of microorganisms in blood cultures.
Yellow SPS tube
Winged collection set is most commonly used in ________ patients.
Elderly / weak or thin veins
Once the tourniquet has been on for one minute, how long does it need to remain off for before being placed again?
At least 2 minutes
These blood samples need to be placed on ice
Lactic Acid & Ammonia