(M) Lesson 5: Specimen Handling and Processing of Blood Specimen Flashcards
What are the three analytical phases inside the laboratory?
Preanalytical, Analytical, Postanalytical
T or F; The quality of laboratory results does not depend on the proper handling
False
What percentage of error occur prior to analysis?
46 - 68%
Most serious and potentially most dangerous pre-analytical error
Improper patient identification
Fasting hours for GGT
8 - 10 hours
T or F; you can use alcohol in blood alcohol testing as an antiseptic
False
Correct degrees for venipuncture needle position
15 - 30 deg
Standard bore size for kids
23 (blue)
Additive for (light) blue-coded vacutainer and for what test
Sodium citrate, coagulation studies
Additive for lavender-coded vacutainer and for what test
EDTA, Hematology
Additive for green-coded vacutainer and for what test
Heparin, Chemistry
Additive for gold and/or orange-coded vacutainer and for what test
Clot activator, Chemistry
Additive for red-coded vacutainer (plastic) and for what test
Clot activator, Chemistry
Additive for gray-coded vacutainer and for what test
Sodium fluoride, Chemistry
Additive for red-coded vacutainer (glass) and for what test
None, Chemistry
Recite the correct order of draw
- Sterile blood culture tubes – Yellow stopper
- Coagulation tubes – Light blue stopper
- Serum tube / Plain tube – Red stopper
- Heparin tube – Green stopper
- EDTA tube – Lavender / Purple stopper
- Anti-glycolytic tube / Fluoride – Gray stopper
“Stop, Light is Red. Green Light, Go. “
“Stop, Light is Red, Stay Put. Green Light, Go.”
What is the result of filling the vacutainer with less blood?
Dilution effect
What is the result of filling the vacutainer with too much blood?
Blood clots
What is the blood to anticoagulant ratio?
9:1
T or F; it is fine to combine 2 partially filled tubes
False
T or F; It is fine to send the partially-filled tube to the lab if the patient is no longer available
True
It is when the liquid enters the tissue
Hemoconcentration
It is when fluid goes outside the tissue
Hemodilution
T or F; Longer tourniquet application causes decreased pH, increased potassium, and decreased calcium and magnesium
False (lowered pH, increased potassium, INCREASED calcium and magnesium)