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63 Cards in this Set

  • Front
  • Back
What is the function of EDTA?
to prevent coagulation by binding or chelating calcium
clotted blood has?
fibrin is found in ?
in clotted blood there is absence of what?
clotting factors
anti coagulated blood contains what?
plasma contains?
whole blood is also called ?
anti coagulated blood
the buffy coat contains?
platelets and WBC's
to check blood sugar, do you check serum or plasma?
You may check either one
what are the 4 stages of hemostasis?
1.) vasoconstriction
2.) platelet aggregation
3.) coagulation pathway activation
4.) fibrinolysis
the function of platelets is checked by what?
Bleeding time
PT is responsible for checking what?
the extrinsic pathway
PT stands for what?
Prothrombin time/Pro time
PTT is responsible for checking what?
the intrinsic pathway
PTT stands for what?
partial thromboplastin time
EDTA is used for what and what color tube?
1.) hematology
2.) lavender
K2 EDTA is used for what and what color tube?
1.) hematology
2.) lavender
K3 EDTA is used for what and what color tube?
1.) hematology
2.) pink
what does EDTA do?
removes Ca
Na Citrate does what?
binds or chelates calcium
Na citrate is used in what color tube and for what?
1.) blue
2.) used for coagulation study (PT and PTT)
K+ Oxalates are used for what in what color tube?
1.) used for blood sugar, alcohol, lactates, and lactic acids
2.) gray tube
K+ Oxalates are involved with what?
Calcium binding
Na+ heparin, ammonium heparin, and lithium heparin are used for what and in what color tube?
1.) chemistry tests
2.) green tube
thrombin is under the influence of what factor?
Factor X
what does heparin do?
stops the action of thrombin
you never use a calcium for what?
a chemistry study
once glucose leaves a erythrocyte, it becomes what?
lactic acid
NaF is a what?
an anti-glycolytic
filling up the tubes prevents what?
what is the necessary blood to anticoagulation ratio that is always necessary?
what does the 9 represent in the 9:1 ratio?
9 parts blood
what does the 1 represent in the 9:1 ratio?
1 part anti coagulation
what six color topped tubes are plasma tubes?
1. yellow top
2. light blue top
3. green top
4. lavender top
5. pink top
6. gray top
what three color topped tubes are serum tubes?
1. plain red top
2. orange or marbled tube
3. tiger top/SST/gold top/marble red
anything using a culture goes where?
anything with plasma goes where?
hemogard prevents what?
blood splash
what are two special use anticoagulants?
1. ACD
2. SPS
what is ACD?
acid citrate dextrose, the acid citrate acts as an anti coagulant and the dextrose acts as a RBC nutrient and preservative
what is SPS?
sodium polyanethol sulfonate
what does SPS do?
it acts as an anticoagulant that inhibits complement and phagocytosis and reduces antibody activity
what is the order of drawl?
1. yellow- sterile
2. light blue- coagulation time
3. red (plain red) -serum tube
4. red/gray (SST)- serum tube
5. green- chemistry
6. lavender/pink- hematology
7. gray- chemistry
8. others
what is the most commonly used phlebotomy needle in adults?
21 gauge
what sized needle is used for more fragile veins like those of children?
23 gauge
what is the danger of using a needle with a high amount of vacuum?
it may cause hemolysis and or vein collapse
the larger the gauge the ______the lumen?
arterial blood drawl is done with what gauged needle?
22 gauge
going from needle to syringe, what is the order?
needle, hilt, hub, syringe
wings on a syringe needle are called what?
butterfly needles are used when?
they are used for venipuncture on extremely small or fragile veins on children
butterfly needles are usually what gauge?
23 gauge
what needle has the highest amount of injuries?
butterfly needles
what type of call has priority over all other lab calls?
a STAT call from the ER
what is the most important step in phlebotomy?
patients ID bracelet
in patient is a patient that is released within 24 hrs...T/F?
it is important to always ask for the patients consent even if they are sleeping, T/F?
leaving a tourniquet on for more than one minute can lead to what?
what are the 3 correct steps in palpating veins?
1. location
2. direction
3. depth
it is important to let alcohol dry on venipuncture site because exposure between blood and alcohol can lead to what?
what is the only tube that does not get inverted?
plain red top
always label your tubes when?
immediately after obtaining the specimen
what 4 key things go on the tube once specimen has been collected?
1. patients name
2. date
3. time
4. phlebotomists initials