Chapter 6 Flashcards
(27 cards)
Light blue topped tube vacuum collection tube has which of the following additives
Sodium citrate
Venipuncture with a vacuum tube
Most direct and efficient method for obtaining a blood specimen
The butterfly blood collection set is frequently used with the needle gauge size of
21 and 23 gauge
Which of the following blood analytes is sensitive to light
Bilirubin
Which of the following is an anticoagulant used in blood donations
ACD
Gray topped tubes used for
Glucose
Royal blue/tan
Nutritional studies, therapeutic drug monitoring, and toxicology
A prefilled device used as a collection and dilution unit is the
BMP LeukoChek
Needle sizes used for blood collection
- larger 16-18 gauge needles are used for collecting donor units of blood ex.450ml
- smaller 21-22 gauge needles are used for collecting specimens for laboratory assays
Green tube tops
Chemisty
- glucose
- bun
- ionized calcium
- creatinine
- electrolyte studies
Lavender tube tops
Hematology
- CBC
- RBC
- WBC
Blue
Coagulation
- (PT)
- (APTT)
Gold/ red-gray/speckled top
The tubes are the exact same
Gold-3.5ml
Speckled/red-gray-10ml yields more serum
Chemistry, send out, referral, immunology( gel serum separator) inside
Blood clotting time 30 minutes
Red topped tube
Collection of serum
Clotting begins 30 minutes a new one was invited to do it within 5 minutes
Royal blue
Nutritional studies, therapeutic drug monitoring, and toxicology
Gray
Glucose
Most common tubes used in Lab for routine
- green
- lavender
- blue
- gold/speckled-red/gray
Tourniquets
- Provides a barrier to slow down venous flow.
- Applies enough pressure to the arm to slow return if venous blood to heart
- causes pooling of blood in veins make easier to see and feel
Penetration recommended for infants
Less than 2.0 mm on healsticks to avoid penetrating a bone
BD quickheel lancet for infant
Teal colored precision depth of 1.0mm
BD quickheel for preemie
Purple colored precision depth of 0.85
Two criteria used to describe vacuum tube size are
- external tube diameter and length
- maximum amount is specimen to be collected into vacuum tube
Plastic collection tubes
Reduce the risk of tube breakage and blood spill
Glass collection tubes
Not desirable because the risk of exposure to blood borne pathogens is increased due to possible breakage