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What is plasma
the liquid portion of unclotted blood and still contains clotting factors
What is serum
is the liquid portion of blood that has been allowed to clot/coagulate
Are clotting factors present in serum
no, they clotting factors have been used up to clot the blood
Which has clotting factors present - serum or plasma
plasma
What tubes have anticoagulants
Light Blue
Lavender
Green (light and dark)
Pink
Royal Blue with Lavender Stripe
Gray
tubes with anticoagulants will produce what when spun in centrifuge?
Plasma
tubes without anticoagulants will produce what when spun in centrifuge
Serum
Tubes without anticoagulants
clear - discard
Red - glass
Red - plastic (has clot activitator)
Tiger Top/Gold / Marble Top
Royal blue with Red stripe
Blood Culture must have how many bottles and is ordered?
Two; ordered stat or as timed specimens
What color bottle is aerobic bc done in?
blue cap
What color bottle is anaerobic bc done in
gold cap
what color bottle is a pediatric bc done in?
pink cap
what color bottle is a fungal bc done in?
red cap
When collecting bc what do you clean the skin and bottle caps with?
chloraprep or iodine and then let dry
your employer may request that you draw bc using this type of needle set up to keep the nutrient broth inside the bottle from going in the blood stream and you must keep the bottle upright during the draw to get the correct fill amount
winged infusion set
What is the additive inside BC bottles?
nutrient broth - SPS (sodium polyanethole sulfonate)
when are BC drawn?
when a systemic infection is suspected or fever of unknown origin (FUO)
What lab are the bc bottles taken to?
Microbiology
Mnenomic for order of draw?
Boys - Blood Cx
Clearly - Clear plastic or red glass
Love - Light Blue
Rude - Red
Girls - Gold/ Tiger, Marble
Like - Light green
Dogs - Dark green
Love - lavender
Petting - pink
aNd - Navy blue
Greek - Grey
Yogurt - yellow top tube glass
clear top tube is used for what?
discard tube
red glass may also be used in place of this
Light Blue Top goes to what lab?
coagulation lab or hematology
light blue top has what additive in it ?
Sodium Citrate
salty margs under a light blue sky
light blue has to be inverted how many times?
3-4 times
Light Blue tube yields ?
plasma
Sodium citrate does what?
prevents coagulation by binding to calcium so it preserves the clotting factors
What tests are light blue tops used for?
PT
PTT
aPTT
PRP
D-Dimer
What must be drawn before a light blue top tube?
Clear top or Red glass tube
do you need to invert a red top or plain top tube?
not typically, only if it is a red plastic top tube
Is there an additive in the red top tube?
Glass - no
Plastic - yes - clot activator
What tube has a clotting agent added bc the sides are too slick for natural clotting to occur?
red plastic top
what does a red top plastic or red glass tube test for?
Serum pregnancy
ETOH levels
Discard
PrP or PrF
What lab does a red top tube go to?
Chemistry
Blood clots naturally within this tube within 30-60 mins
Red top - glass or plain vacuum tube
this tube must be spinning in a centrifuge within 90 secs bc it has zero additives
red top glass
The blood will clot slower in what kind of material tube with no additives?
plastic
Is a red top plastic tube a clean specimen?
no, it has silica or silicone as the additive
What tube has silica or silicone as an additive
Red top plastic
what does silica additive do?
clotting agent, promotes faster clotting of blood
red top glass tubes play a part in bone grafts how?
they don't have silica in them like plastic red top,
why can't red top plastic tubes be used for collection
Bc they have silica - - which can become a part of the bone matrix/graft mixture and cause inflammation and intensive infection -- osteoblasts are degraded by silica and won't heal
what are the other names for a tiger top tube?
red tiger
marble top
red grey speckled
gel top
or gold top
What lab does a tiger top go to?
chemistry
What is the additive in tiger tops?
Silica and Serurm Separator /SST (thixotropic gel)
What does Thixotropic Gel do?
separates serum and formed cellular elements
creates a barrier between them
how many times must a tiger be inverted
8-10 times
What tests are run using a tiger top?
BMP
CMP
Serum Pregnancy Test (if ok with clotting factors left in)
Lipids/Chol
CRP
TSH
Tiger tops must be spun for how long?
15-30 mins
why is a clear top tube or red top glass tube drawn before drawing on a light blue top?
Discard tube prevents thromboplastin from venipuncture from entering light blue top
less risk of air and thromboblastin impacting coag results
light green top tube has what additive in it?
lithium heparin, thixotropic gel
Light green top yields what?
plasma
what department processes both green top tubes?
chemistry
what else is a green top tube called
PST - plasma separation tube
What does lithium heparin do?
anticoagulant
works by inhibiting thrombin in coag cascade
can you use a light green top tube for hematology tests?
No, the heparin interferes with Wright's stained blood smears
what does thixotropic gel do in the SST or light green top tube?
it creates a barrier between the plasma and formed cellular elements when centrifiuged
keeps plasma from being contaminated
how many times are the green tubes inverted?
8 times
What tests are the light green tube tops used for?
STAT Lytes - (Green apple gatorade)
hCG, + HCG quant and qual
Some light green tube tops have gel and some have no gel, what's the difference?
No gel = Plasma Tube
With gel = Plasma separator Tube
What tests require the tubes to be put on ice and what color tubes are they drawn in?
Lytes - light green, Stat on ice
Ammonia - dark green
Lactic Acid - Grey top
What additive does a dark green top tube have inside?
Sodium heparin
what does sodium heparin do?
anticoagulant - inhibits thrombin
Does the dark green tube have a gel additive?
NO
The dark green top tube yields what?
plasma
What tests are performed on a Dark green top tube?
Ammonia - Stat on ice
Lavender top tube has what additive in it?
EDTA (ethylene-diamine-tetra-acetic-acid)
What does EDTA do?
inhibits coagulation by binding to Calcium
is the purple top tube used for coagulation studies?
no, bc edta binds to calcium in the specimen stopping coag
PREVENTS CLOTS
What does a purple top yield?
Plasma
How full must a purple top be?
2/3 full
How many times should a purple top be inverted
8 times
If a CRP is required what tubes can be drawn?
if plasma is needed - purple top
if serum is needed - sst /tiger top
What tests can be done with a purple top tube?
CBC
ESR
Sickle Cell
H & H
PLT
A1C or HbA1C
if a purple top's blood hemolyzes can the tests still be done?
NO, the lab will reject it
What is hemolyzation
happens when the membranes of the RBC's break and release free hemoglobin into the circulating blood
What lab processes a purple top?
Hematology
should a CBC be centrifuged?
No, it NEVER should be centrifuged
is there a difference between light purple and dark purple?
only difference is amount of blood needed to fill and how much EDTA is in them, used for the same tests
What additive is in a pink top tube?
potassium EDTA
What does potassium EDTA do?
prevents clots / anticoag
how many times should a pink top be inverted
8-10 times
what lab does the pink top go to?
Blood bank or hematology
What lab does the purple top go to?
hematology
What tests are done on a pink top tube?
TSR (Blood types, Rh Factor, and ab's - A+ etc.)
Cross Match - required before transfusion
Viral Loads
can you use a pink top tube in place of a purple top tube?
No! You can't swap pink for purple tops.
BUT you can swap purple tops for pinks.
What's the difference between a pink and purple top?
Both have EDTA, but pink draws more blood and has more EDTA inside of the tube
What additive is in a grey top tube?
sodium fluoride + potassium oxalate
What does sodium fluoride do?
prevents the breakdown of sugar,
sugar will last in sample for 3 days
What does potassium oxalate do?
anticoagulant that binds calcium in the sample
how many times must a grey top tube be inverted?
8-10 times
What lab does a grey top tube go to?
Chemistry
What tubes can glucose be tested in?
serum - SST
plasma - grey top
What does a grey top tube yield
plasma
What tests use a grey top tube?
OGTT - 1h, 3h, 5hr
Lactic Acid - stat on ice, can't use tourniquet
ETOH - can't use etoh wipe though
when a lactic acid is ordered what must be done?
use a grey top
place it on ice
get it to chemistry STAT
Don’t use a tourniquiet (if left on it can increase LA by 100)
Royal Blue with Red Stripe yields?
Serum
Royal blue with lavender stripe yields
plasma
What lab should you take Royal Blue test tubes to?
Toxicology
what additives do the royal blue tops have?
Red Stripe= none
lavender Stripe = EDTA
when is a royal blue with red stripe drawn
after the light blue top and before other serum tubes
when is a royal blue with lavender or blue line drawn?
after the purple top tube