PMLS 2 - MIDTERMS Flashcards

1
Q

Which of the following is TRUE about
capillary blood?

A

-It is a mixture of both arterial and venous
blood.
-Glucose concentration is normally higher in
capillary blood.
-If contaminated with tissue fluid, potassium
level in this blood sample is falsely elevated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following statements about
lactose tolerance test is INCORRECT?

A

It is recommended that a 2-hour GTT test
be administered at least a week before the
lactose tolerance test.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

This is a sharp bladed instrument used for
capillary puncture for the purpose of
incising the skin to obtain blood

A

Lancet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following analytes is NOT
being measured in ABG analysis?

A

Packed cell volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The biggest advantage of choosing the radial
artery for arterial blood collection is:

A

Good collateral circulation is present.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the rationale behind wiping the first
drop of blood during skin puncture?

A

-It minimizes contamination with tissue
fluid.
-This contains alcohol that can hemolyzed
the sample.
-This may result to inability to produce a
good drop of blood.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which of the following will elevate after a
high protein diet?

A

Urea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the standard depth of incision for
capillary puncture in infants to prevent bone
injury?

A

less than 2.0 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Puncturing the arch of heel can result to this
condition define as the inflammation of the
bone and cartilage.

A

Osteochondritis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The doctor orders tests requiring a lavender
stopper tube, a light blue stopper tube for
coagulation studies, a white stopper tube, a
gold stopper tube and a set of blood cultures.
What is the correct order of draw?

A

Blood cultures, light blue, gold, white,
lavender

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

After finishing a blood draw, the
phlebotomist must document all, EXCEPT;

A

Patient’s Blood type

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When is capillary puncture indicated in case
of adult patient?

A

-When veins should be saved for
chemotherapy
-When accessible veins sites are scarred or
burned

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

You are about to perform a routine
venipuncture on a patient with no known
allergy to antiseptics. Which of the
following substances would you use to clean
the site?

A

70% isopropyl alcohol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

GDM only occurs in what type of
individuals?

A

Pregnant women

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The following increases with stress,
EXCEPT:

A

Iron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the following is NOT TRUE about
capillary tubes?

A

If there is a blue band color at the end, it
contains an additive.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The central vascular access devices are used
primarily for:

A

administering fluids and medications,
monitoring pressures, and drawing blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which of the following statement about
specimen requirements (during drug testing)
is INCORRECT?

A

During the collection, a proctor must not be
present to ensure that the identity of the
patient is protected.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Disadvantage of puncturing the brachial
artery include the following, EXCEPT.

A

Increased risk of infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Specimens collected from which areas may
yield inaccurate test results.

A

both edematous and damaged veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the best angle for needle insertion
during ETS method of venipuncture?

A

15°-30°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When performing arterial puncture, direct
the needle:

A

Perpendicular to the wrist and lower arm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Prior to collection of ABG, a patient should
have been in a steady state for at least

A

20-30 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

In site selection for skin puncture, which of
the following is TRUE?

A

Site should be warm and pink in color with
no bruises

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The following are reasons for specimen
rejection, EXCEPT

A

Hemolyzed specimen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Late General Complication of Venipuncture,
EXCEPT;

A

Thomophlebitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Body position before and during blood
collection can influence specimen
composition. Going from supine (lying
down on the back) to an upright sitting or
standing position causes hemoconcentration.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Which of the following statements is true?

A

-cortisol is elevated from 6:00-8:00 am

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Mr. Adarve will be collecting blood for
Complete Blood Count. How many times
should Mr. Adarve inverse the evacuated
tube he needs to use?

A

8-10x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which of the following statement about
POCT is INCORRECT?

A

These tests are not only convenient, but it
also lengthens the turnaround time (TAT).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What will happen if a needle is partially
inserted into a vein?

A

Hematoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Which of the following is affected by
excessive drinking of water prior to blood
test?

A

Electrolytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

After cleaning the venipuncture site with
alcohol, the phlebotomist should;

A

Allow the alcohol to dry completely.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

A trained phlebotomist should:

A

-Collect capillary blood quickly to minimize
microclot formation.
-Know that a venous blood can be collected
using microtubes.
-Collect specimen for newborn screening
separately

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

ALL BUT ONE results to Hemolysis

A

Vigorous fist clenching of the patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Whose blood results are used in determining
the reference range or intervals?

A

healthy individuals in their basal state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Which of the following can be caused by
blood leaking from a blood vessel during or
following venipuncture?

A

Hematoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

A good blood drawer for arterial blood show
good competence when performing
modified allen’s test when

A

He uses middle and index finger to apply
pressure on the wrist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Warming the capillary puncture site is
associated with which of the following
purposes?

A

Increase blood flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

During venipuncture, the phlebotomist
observed that the patient appears pale with
beads of sweat on the forehead. These are
signs of:

A

Syncope

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

This is also called an indwelling line,
comprises tubing inserted into a main vein
or artery

A

central vascular access device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

What is the required glucose load for
children?

A

1g per kg body weight

43
Q

You are asked to collect a blood specimen
from an inpatient. The patient is not wearing
an ID band. What is the best thing to do?

A

Ask the patient’s nurse to put an ID band on
the patient before you draw the specimen.

44
Q

The most important step in the performance
of a venipuncture is

A

Identifying patients

45
Q

Which of the following statements about
ETOH specimen is FALSE?

A

Use green-top sodium chloride glass tubes
for specimen collection.

46
Q

When performing skin puncture and you
warm the site, the sample is called as

A

Arterialized

47
Q

Rapidly forming hematoma and blood filling
the tube very quickly are signs that you have
punctured:

A

an artery

48
Q

Which of the following statement about drug
screening is FALSE?

A

The specimen used is blood instead of
urine.

49
Q

In performing femoral arterial puncture,
needle should be inserted at what angle?

A

90 degrees

50
Q

Which of the following arterial puncture site
poses the greatest risk of developing
infection?

A

Femoral

51
Q

A trained phlebotomist should

A

Apply the tourniquet 7.5-10 cm above the
site of puncture

52
Q

It is an indicator on how well air is
exchanged between the blood and lungs

A

PCO2

53
Q

Which of the following statements about
DNA paternity testing is CORRECT?

A

Sealed and tamper-evident package are
used to hold the specimen during
transportation to the laboratory.

54
Q

Which of the following tests require arterial
blood as specimen?

A

Blood gases

55
Q

A sudden position change of the patient
before collecting blood sample may result to

A

Both Hemoconcentration and Hemodilution

56
Q

Smoking stimulates the body’s immune
response and increases the production of
antibodies

A

False

57
Q

Which of the following equipment is not
necessary for blood gas collection?

A

Disposable tourniquet strap

58
Q

Which of the following statement about
POCT is INCORRECT?

A

Several manufacturers recommended
disinfecting the instrument using 70%
isopropyl alcohol to reduce the risk of cross
contamination

59
Q

A 2 months old baby was sent to the
laboratory for CBC testing. You are to
perform capillary puncture. What is the best
site to use for the patient?

A

Lateral plantar heel surface

60
Q

Capillary puncture equipment includes all of
the following, EXCEPT;

A

Evacuated tubes

61
Q

Ms. Recto wasn’t able to collect blood from
Mr. Domingo. She attempt collecting blood
twice, but still failed. What should Ms.
Recto do?

A

Ask another phlebotomist to draw blood
from patient.

62
Q

Which of the following statements about
lactose tolerance test is INCORRECT?

A

If the patient is glucose intolerant, the result
will yield a “flat” curve where lactose levels
just slightly rise over the fasting level.

63
Q

Which of the following would you think
make an arterial blood acceptable for ABG
testing in the laboratory?

A

The blood is collected in an anaerobic
manner

64
Q

Blood gas specimen rejection criteria
include all of the following, EXCEPT:

A

None of the choices
-Inadequate volume of the specimen
-Improper labeling or missing label.
-Visible hemolysis of the specimen (if not
use for electrolytes too)

65
Q

In locating the vein to be used for
venipuncture, the phlebotomist should;

A

-Feel the vein using index and middle finger.
-Palpate and trace the path of vein.

66
Q

How much volume of blood is withdrawn in
therapeutic phlebotomy?

A

500.0 ml

67
Q

Which of the following is a disadvantage of
using radial artery for ABG collection?

A

It is small and difficult to feel

68
Q

The tourniquet should be released

A

-Within 1 minute of its application.
-As soon as the blood flow is established.
-Before needle removal from the arm.

69
Q

What is the indication if the phlebotomist
already hit the vein using syringe method?

A

You should see a blood that appears in the
hub

70
Q

A patient who has a collateral circulation:

A

Has multiple arteries supplying blood to an
area

71
Q

In administering local anesthetic before
arterial puncture, which of the following
statement is TRUE?

A

-0.35 mL 1% lidocaine is adequate to use for
some patient
-There should be appearance of wheal after
administration

72
Q

What is the required glucose load for adults?

A

75 g

73
Q

These are tiny, non-raised red (or purple)
spots that appear on the patient’s skin when
a tourniquet is applied. Presence indicates
capillary wall defects or platelet
abnormalities.

A

petechiae

74
Q

Which of the following statements about
ETOH specimen is FALSE?

A

-The collection uses aqueous povidoneiodine and aqueous 70% isopropyl alcohol.

75
Q

Other sites where arterial specimens may be
obtained include the following, EXCEPT;

A

Common carotid artery in the neck

76
Q

Which of the following statement about
POCT is INCORRECT?

A

POCT is also known as alternative sight
testing (AST)

77
Q

Which of the following statement about drug
screening is FALSE?

A

The chain of custody protocol is not
implemented since legal implications are not
usually involved.

78
Q

Controlling the depth of lancet insertion
during heel puncture is necessary to avoid
which of the following effects?

A

Bone injury

79
Q

ALL BUT ONE cannot be used as site for
venipuncture.

A

Dorsal part of the hand

80
Q

Which of the following statements about
lactose tolerance test is INCORRECT?

A

The GTT curve and the glucose curve will
be different if the patient has mucosal
lactase.

81
Q

In new born screening, you should not

A

Collect sample within 24 hours after birth.

82
Q

Which of the following is considered as the
primary site-selection criteria for arterial
puncture?

A

Presence of collateral circulation

83
Q

A good phlebotomist show competence on
performing skin puncture when, EXCEPT

A

He punctures the 4th finger on the same
side of mastectomy.

84
Q

A vein which is obstructed, hard and
cordlike, and lacks resiliency is

A

sclerosed

85
Q

Which of the following is NOT TRUE about
neonatal bilirubin collection?

A

This is used for detection of an increased
bilirubin level due to RBC hemolysis.

86
Q

Forceful aspiration of blood during a syringe
draw will result to hemolyzed specimen.

A

True

87
Q

ALL but ONE causes Hematoma.

A

Transfixation of vein

88
Q

An arteriovenous shunt is typically created
to be used for dialysis.

A

True

89
Q

In using microcollection containers, which
of the following should be filled up first
with blood sample?

A

Purple top

90
Q

A good phlebotomist show competence on
performing venipuncture using evacuated
tube system when, EXCEPT;

A

The phlebotomist unties the tourniquet after
removing the needle

91
Q

Which of the following is an acceptable
blood smear?

A

Has smooth transition from thick to thin

92
Q

What is the best choice of vein for a normal
healthy individual?

A

Median cubital vein

93
Q

The capillary blood can be used as sample
for ABG provided that the site is warmed
prior to blood collection.

A

True

94
Q

Which of the following actions shows
competence in phlebotomy?

A

Using a g23 needle for pediatric patients

95
Q

Which of the following is not included in
testing for ABG using POCT?

A

-All are included
-CO2
-Ph
-HCO3
-PCO2

96
Q

Which of the following is the primary reason
of obtaining arterial blood in the hospital
setting?

A

For evaluation of respiratory function
-For arterial blood gas analysis

97
Q

Which of the following needle has the
largest diameter?

A

18 gauge

98
Q

Which of the following statement about
specimen requirements (during drug testing)
is INCORRECT?

A

Waterless urinal is not allowed

99
Q

Blood collection tubes are labeled:

A

Immediately after specimen collection.

100
Q

A conscious patient does not have an
identification bracelet. The name and room
number on the door agree with the
information on the request. What should the
phlebotomist do?

A

Ask the patient for verbal verification of his
or her name

101
Q

Potassium levels in the blood increase after
heavy exercise.

A

True

102
Q

ALL BUT ONE is a test that cannot be
performed by capillary puncture.

A

Coagulation studies

103
Q

Which of the following equipment is not
needed in performing ETS method of Blood
collection?

A

Luer adapter

104
Q

This site is considered as the most
commonly used site in performing arterial
puncture

A

Radial