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Phlebotomy > Test Study > Flashcards

Test Study Flashcards

1
Q

A national organization that sets standards for phlebotomy procedures

A

CLSI

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2
Q

Which is the proper order of vein selection for venipuncture?

A

Median cubital, cephalic, basilic

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3
Q

The difference between serum and plasma is

A

Plasma contains fibrinogen

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4
Q

Which needle gauge has the smallest diameter: 20, 21, 22, or 23?

A

23

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5
Q

Which tube contains EDTA: Gray stopper, green stopper, lavender stopper, or light blue stopper?

A

Lavender stopper

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6
Q

If you centrifuge a specimen collected in this tube the clear liquid portion is called serum

A

Red stopper

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7
Q

Proper order of draw for the evacuated tube method:

A 
Yellow
L. Blue
Red
S.S.T.
Green
Lavender
Gray
Pink
Royal Blue
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8
Q

Which needle gauge is the standard needle for the evacuated tube method of collection?

A

21 gauge

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9
Q

What special handling does a bilirubin specimen require?

A

Protect from light

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10
Q

The best way to avoid reflux is:

A

Ensure the tube fills from the bottom up.

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11
Q

Which of the following tubes is the blood to anticoagulant ratio most critical?

  • Gray stopper
  • Green stopper
  • Lavender stopper
  • Light blue stopper
A

Light blue stopper

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12
Q

The recommended angle of needle insertion for routine venipuncture is

A

30 degrees or less

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13
Q

The tourniquet must not be on longer than

A

1 minute

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14
Q

Which test may be evaluated if collected from a screaming baby?

A

White cell count

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15
Q

Capillary puncture blood more closely resembles

A

Arterial blood than venous blood

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16
Q

The maximum allowable depth a lancet should penetrate during heel puncture is

A

2.0 mm

17
Q

I hen performing a GTT, the fasting specimen is collected at 0610. The patient is given the glucose beverage at 0613 and finishes it at 0618. When is the 1 hour specimen collected?

A

0718

18
Q

Which of the following is not a safe site for heel puncture?

A

Posterior curvature of the heel

19
Q

Damage to the red blood cells and release of hemoglobin into the serum or plasma is called

A

Hemolysis

20
Q

The silica in an SST…

A

Activates and enhances clotting

21
Q

Which test is most affected by tissue fluid contamination?

A

Protime

22
Q

What is the advantage of collected at a chemistries in green stopper tubes?

A

The test can be performed sooner

23
Q

Which anticoagulant inhibits thrombin formation?

A

Heparin

24
Q

Which of the following tests is most commonly ordered on patients with FUO?

A

Blood cultures

25
Q

The substance typically used to clean a site prior to routine venipuncture is

A

70% isopropyl alcohol

26
Q

List the three different types of shots:

A

Intramuscular (90 degrees)

Phlebotomy (1 decks)

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