Specimen collection and considerations
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most common way to collect blood a. venipuncture b. ETS c. syringe d. butterfly set
venipuncture most common way to collect blood
often hard to palpitate a. median cubital vein b. cephalic vein c. basilic vein
cephalic vein • 2nd choice vein • often hard to palpate than mcv • fairly anchored • often the only vein felt in OBESE patients
only vein felt on obese patients a. median cubital vein b. cephalic vein c. basilic vein
cephalic vein • 2nd choice vein • often hard to palpate than mcv • fairly anchored • often the only vein felt in OBESE patients
which of the ff vein is increased risk of puncturing a median cutaneous nerve branch or the branchial artery a. median cubital vein b. cephalic vein c. basilic vein
basilic vein • last choice • not well anchored and ROLLS easily • increased risk of puncturing a median cutaneous nerve branch or the branchial artery
non fasting serum is cloudy due to _______ a. carbohydrates b. lipids c. enzymes d. nota
non fasting serum is cloudy due to LIPIDS
serum separated from clotted blood by centrifugation( approx. __________ at RCF of 1000 to 2000g) a. 20 secs b. 5 mins c. 10 mins d. 30 mins
serum separated from clotted blood by centrifugation( approx. 10 minutes at RCF of 1000 to 2000g)
stat and other tests requiring a fat turn around time (TOT) are often collected in tubes containing __________ because they can be centrifuged immediately to obtain plasma a. EDTA b. Heparin c. Sodium citrate d. clot activator
stat and other tests requiring a fat turn around time (TOT) are often collected in tubes containing HEPATIN ANTICOAGULANT because they can be centrifuged immediately to obtain plasma
what type of blood specimen doesn’t contain fibrinogen a. whole blood b. serum c. plasma
serum - no clotting factor specially fibrinogen plasma - contains fibrinogen ( SERUM DOES NOT BECAUSE IT WAS USED IN CLOT FORMATION)
what method in venipuncture is the preferred method a. ETS b. syringe c. butterfly set
ETS / evacuated tube system • preferred method because blood is collected directly from the vein into a tube minimizing the risk of specimen contamination and exposure to the blood
what method in venipuncture is used on small, fragile or damaged vein a. ETS b. syringe c. butterfly set
needle and syringe
what gauge is most commonly used in phlebotomy a. 18 gauge b. 21 gauge c. 23 gauge d. 16 gauge
23 gauge • most commonly used • butterfly system 21 gauge - standard for routine venipuncture
what is the standard gauge in venipuncture a. 18 gauge b. 21 gauge c. 23 gauge d. 16 gauge
23 gauge • most commonly used • butterfly system 21 gauge - standard for routine venipuncture
which of the two is preferred to use a. k3 b. k2
K2 EDTA/ SPRAY DRIED - preferred K3 edta/ liquid edta - decrease HCT -> shrink rbc
what is the ratio of blood : anticoagulant in sodium citrate a. 1:9 b. 9:1 c. 1: 6 d. 6:1
light blue additive : Sodium citrate ratio of blood : anticoagulant 9:1
what is the stopper color in fibrin degradation products a. light blue b. balck c. yellow d. light green
stopper color: light blue anticoagulant/adddiive: THROMBIN AND SOY BEAN TRYPSIN use: plasma/coagulation action: FIBRIN DEGRADATION PRODUCTS
what anticoagulant is used in ESR a. sodium citrate b. lithium heparin c. edta
stopper color: black anticoagulant/adddiive: sodium citrate use: plasma / Sedimentation rates hematology action: chelates (binds) calcium
what anticoagulant is used in HLA phenotyping a. sodium fluoride b. sodium citrate c, acid citrate dextrose d. thrombin
stopper color: yellow anticoagulant/adddiive: acid citrate dextrose use: plasma/ blood bank, HLA phenotyping and paternity testing action: wbc preservative
what is the ration of blood: anticoagulnt in black tube a. 9:1 b. 1:9 c. 1:4 d. 4:1
stopper color: black anticoagulant/adddiive: sodium citrate ration of Blood : anticoagulant 4:1 use: plasma / Sedimentation rates hematology action: chelates (binds) calcium