NCCT Practice Test - Lab Review Part One

50 Questions | By Jacklynhuss | Updated: Mar 21, 2022 | Attempts: 908

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This is the review questions from the large book for the NCCT MA exam.

Questions and Answers

1.

The blood lancet is used for the collection of blood specimens by______.
- A.
  
  Injection
- B.
  
  Suction
- C.
  
  Cutting
- D.
  
  Skin puncture
2.

The standard point of the lancet to be used when collecting blood from a newborn heel is ____ in length
- A.
  
  2.4 MM
- B.
  
  3.6MM
- C.
  
  4.7MM
- D.
  
  5.5 MM
3.

The most important step in the performance of a venipuncture is _____.
- A.
  
  Correct needle gauge
- B.
  
  Appropriate cleansing agent
- C.
  
  Positively identifying the patient
- D.
  
  Appropriate tourniquet
4.

To determine the size of the needle remember the higher the gauge number the _____ the needle
- A.
  
  Longer
- B.
  
  Smaller
- C.
  
  Larger
- D.
  
  Shorter
5.

An instrument called a centrifuge ______.
- A.
  
  Freezes specimens
- B.
  
  Heats specimens
- C.
  
  Is used for incubation
- D.
  
  Separates the cellular and liquid portion of the blood
6.

Rubber sleeves on an evacuated tube system make it possible for ______.
- A.
  
  Sterilization
- B.
  
  Slower draw of blood
- C.
  
  Multiple use
- D.
  
  Faster draw of blood
7.

When cleansing the venipuncture site, it is good practice to:
- A.
  
  Wipe the site back and forth quickly with an alcohol prep
- B.
  
  Blow on the alcohol to dry it so it doesnt burn
- C.
  
  Cleanse the site from the inside out and allow to air dry
- D.
  
  Have the patient wave the arm in the air to dry it faster
8.

Preparing for a glucose tolerance test _____ hours before or during the test, the patient should not eat, smoke, drink coffee or alcohol.
- A.
  
  One
- B.
  
  Ten
- C.
  
  One half
- D.
  
  Two
9.

During a venipuncture, to secure the needle during insertion into the tube stopper, you need a _____
- A.
  
  Holder
- B.
  
  Sleeve
- C.
  
  Tape
- D.
  
  Ball of cotton
10.

In the evacuated blood collection system the evacuated glass tubes come in different sizes, and the stoppers are ____ to denote the typeof additive or lack of one.
- A.
  
  Striped
- B.
  
  Stamped
- C.
  
  Serrated
- D.
  
  Color coded
11.

Which needle gauges are most commonly used for venipuncture?
- A.
  
  24-25
- B.
  
  21-22
- C.
  
  19-20
- D.
  
  16-18
12.

When performing a venipuncture, the tourniquet should be wrapped around the arm about three to four inces from where you are going to ___ for a vein.
- A.
  
  Apply soap
- B.
  
  Scrape
- C.
  
  Tap
- D.
  
  Feel
13.

When performing a venipuncture, if you have the patient ____ the veins will become more prominent.
- A.
  
  Cough
- B.
  
  Hold their breath
- C.
  
  Make a fist
- D.
  
  Take a deep breath
14.

Which of the following is false?
- A.
  
  Veins feel like an elastic tube
- B.
  
  Veins pulsate
- C.
  
  Veins give under pressure
- D.
  
  Veins go different directions
15.

Use your index finger when you ____ for a vein.
- A.
  
  Stick
- B.
  
  Scratch
- C.
  
  Palpate
- D.
  
  Inject
16.

Arterioles are the smallest type of ____.
- A.
  
  Tendons
- B.
  
  Arteries
- C.
  
  Bones
- D.
  
  Veins
17.

The maximum time a tourniquet should be tied on the upper arm while drawing blood is ___.
- A.
  
  4 minutes
- B.
  
  3 minutes
- C.
  
  2 minutes
- D.
  
  1 minute
18.

To cleanse the typical venipuncture site, begin at the intended site of the draw and ____.
- A.
  
  Work in a circle to the periphery
- B.
  
  Wipe carefully back and forth
- C.
  
  Cleanse vigorously for 30 seconds
- D.
  
  Use a lifting motion to move away from the skin
19.

The venipuncture site should be cleansed with _____.
- A.
  
  A damp solution
- B.
  
  A paper towel
- C.
  
  The back of your hand
- D.
  
  An alcohol prep
20.

When using the centrifuge, make sure equal weights are _____.
- A.
  
  Side by side
- B.
  
  Liquid
- C.
  
  Opposite each other
- D.
  
  One space apart
21.

The lid to the centrifuge should be kept _____ when in use.
- A.
  
  Closed
- B.
  
  Open
- C.
  
  Ajar
- D.
  
  Lifted
22.

When using an evacuated tube for collection of electrolytes use a ____.
- A.
  
  Blue-top tube
- B.
  
  Red-top tube
- C.
  
  Balck-top tube
- D.
  
  Lavender-top tube
23.

When collecting blood for a hematocrit test use a ______.
- A.
  
  Lavender-top
- B.
  
  Red-top
- C.
  
  Blue-top
- D.
  
  Yellow-top
24.

When collecting blood for cholesterol tests use a ____ top evacuated tube
- A.
  
  Red
- B.
  
  Yellow
- C.
  
  Blue
- D.
  
  Lavender
25.

The primary anticoagulant additive EDTA removes calcium by forming insoluble or un-ionized calcium salts. It has an advantage of preventing platelet clumping and the formation of artifacts, therefore, good for the preparation of ____.
- A.
  
  Background staining
- B.
  
  Red cell preservation
- C.
  
  Clotting
- D.
  
  Blood films