Venipuncture by ETS Flashcards

1
Q

Also called as a vacuum blood collection system

A

Evacuated Tube System

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2
Q

The most frequently used method for performing venipuncture.

A

Evacuated Tube System`

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3
Q

Evacuated Tube System eliminates the need for transfer of specimens. True or False

A

True

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4
Q

uses a shield that locks over the needle tip after completion of the venipuncture

A

BD Vacutainer Eclipse blood collection needle

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5
Q

ETS minimizes the risk of biohazard exposure. True or False

A

True

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6
Q

ETS is consists of:

  • Double-pointed/ Multi-sample needle/
  • Plastic holder or adapter
  • Vacuum blood collection/
    color-coded evacuated tubes
  • Syringe

True or False

A

False - ETS doesn’t need a syringe

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7
Q

ETS needle length for routine venipuncture, 1-inch, and 1.7-inch lengths are used. True or False

A

False - For routine venipuncture, 1-inch and 1.5-inch lengths are used.

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8
Q

a plastic sleeve into which the phlebotomist screws the double-pointed needle.

A

Holder or Adapter

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9
Q

The Holder or Adapter has the ability to accommodate collection tubes of different sizes. True or False

A

True

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10
Q

Collection tubes are called evacuated tubes because they contain a premeasured amount of vacuum. True or False

A

True

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11
Q

After inserting the longer needle into the vein, the phlebotomist pushes the tube into the holder so that the shorter needle pierces the stopper. True or False

A

True

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12
Q

Anticoagulants prevent clotting by binding calcium or inhibiting thrombin in the coagulation cascade. True or False

A

True

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13
Q

Heparin prevents
clotting by inhibiting the formation of thrombin necessary to convert fibrinogen to fibrin in the coagulation process. True or False

A

True

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14
Q

Most common anticoagulants that work by binding calcium

A

Ethylenediaminetetraacetic acid (EDTA), Citrates, Oxalates

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15
Q

All tubes containing an anticoagulant must be gently inverted 3 to 8 times immediately after collection to mix the contents and to avoid micro clot formation. True or False

A

True

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16
Q

The order of draw for ETS is different from the order of draw when filling tubes from a syringe. True or False

A

False - it is the same

17
Q

The order of draw:

  • Blood cultures (yellow stopper tubes, culture bottles)
  • Lavender stopper tubes (EDTA)
  • Red/gray, gold stopper tubes (serum separator tubes), red stopper plastic tubes (clot activator), and red stopper glass tubes
  • Green stopper tubes and light green (plasma separator tubes) (heparin)
  • Light blue stopper tubes (sodium citrate)
  • Yellow/gray or orange stopper tubes
    (thrombin clot activator)
  • Gray stopper tubes (potassium
    oxalate/sodium fluoride)

True or False

A

False

  • Blood cultures (yellow
    stopper tubes, culture bottles)
  • Light blue stopper tubes (sodium citrate)
  • Red/gray, gold stopper tubes (serum separator tubes), red stopper plastic tubes (clot activator), and red stopper glass tubes
  • Green stopper tubes and light green (plasma separator tubes) (heparin)
  • Lavender stopper tubes (EDTA)
  • Gray stopper tubes (potassium
    oxalate/sodium fluoride)
  • Yellow/gray or orange stopper tubes
    (thrombin clot activator)
18
Q

often preferred over an evacuated tube system when drawing blood from patients with small or fragile veins.

A

Syringes

19
Q

One of the advantages of using a syringe when drawing blood is the phlebotomist is able to control the suction pressure on the vein by slowly withdrawing the syringe plunger. True or False

A

True

20
Q

The procedure of venipuncture using ETS is the same as venipuncture by syringe. True or False

A

True

21
Q

It is important to verify if the patient has fasted, has allergies to latex, or has had previous problems with venipuncture. True or False

A

True

22
Q

The tourniquet is applied 4 to 5

inches above the antecubital fossa. True or False

A

FALSE - 3 TO 4

23
Q

It is important to palpate the area in a vertical and horizontal direction to locate a large vein and to determine the depth, direction, and size. True or False

A

True

24
Q

The vein of choice before the cephalic vein

A

median cubital

25
Q

Clean the site with 70 percent isopropyl alcohol in concentric circles moving inward and allow it to air dry. True or False

A

False - it should be outward motion

26
Q

The patient should be instructed not to “pump” or “continuously clench” the fist to prevent hematoma. True or False

A

False - to prevent hemoconcentration

27
Q

Anchor the vein by placing the thumb of the non-dominant hand 1 to 2 inches below the site and pulling the skin taut. True or False

A

True

28
Q

Smoothly insert the needle into the vein at a 10-to15-degree angle with the bevel up until you feel a lessening of resistance. True or False

A

False - 15-to-30-degree

29
Q

Remove the tube first before removing the needle. True or False

A

True