Patient Identification
What is the primary source of patient identification for a conscious patient?
Patient verbal verification
Which tube is drawn first in the order of draw?
Blood cultures
Which tube contains sodium citrate?
Light blue
Which vein is the best choice for venipuncture?
Median cubital
When must specimen labels be applied?
At the patient’s bedside
What should you do if a patient has no ID band but is conscious?
Ask the patient to state name and DOB
Where does the light blue tube fall in the order of draw?
Second
What lab tests require a light blue tube?
PT / PTT
What direction should the needle bevel face?
Facing up
What three items must be added to printed labels?
Date, time, collector’s initials
What identification system is used for an unconscious trauma patient?
Temporary master ID number
What tube is used for CBC testing?
Lavender
Which anticoagulant is preferred for hematology testing?
EDTA
What does a pulsing sensation indicate during palpation?
Artery
Who is legally responsible for correct specimen labeling?
The phlebotomist
True or False: Room numbers and water jugs can be used for identification.
False
What happens if order of draw is not followed correctly?
Additive carryover / inaccurate results
How do EDTA, citrate, and oxalate prevent clotting?
By removing calcium
Why should arms with IVs be avoided?
Risk of specimen dilution
Which information is NOT required on a specimen label?
Physician’s name
A patient is unconscious and unidentified. What must match before blood is drawn?
Armband, requisition, and labels
List the correct order of draw for: Blood cultures, PT/PTT, Serum drug level, CBC
Blood cultures → Light blue → Red → Lavender
Why is the light blue tube critical for coagulation studies?
Preserves clotting factors while preventing clot formation
A vein collapses during draw — what is the most likely cause?
Excessive suction
List ALL labeling requirements.
Full name, ID number, date, time, collector initials