PMLS 2 - MIDTERMS Flashcards
Which of the following is TRUE about
capillary blood?
-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
Which of the following statements about
lactose tolerance test is INCORRECT?
It is recommended that a 2-hour GTT test
be administered at least a week before the
lactose tolerance test.
This is a sharp bladed instrument used for
capillary puncture for the purpose of
incising the skin to obtain blood
Lancet
Which of the following analytes is NOT
being measured in ABG analysis?
Packed cell volume
The biggest advantage of choosing the radial
artery for arterial blood collection is:
Good collateral circulation is present.
What is the rationale behind wiping the first
drop of blood during skin puncture?
-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.
Which of the following will elevate after a
high protein diet?
Urea
What is the standard depth of incision for
capillary puncture in infants to prevent bone
injury?
less than 2.0 mm
Puncturing the arch of heel can result to this
condition define as the inflammation of the
bone and cartilage.
Osteochondritis
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?
Blood cultures, light blue, gold, white,
lavender
After finishing a blood draw, the
phlebotomist must document all, EXCEPT;
Patient’s Blood type
When is capillary puncture indicated in case
of adult patient?
-When veins should be saved for
chemotherapy
-When accessible veins sites are scarred or
burned
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?
70% isopropyl alcohol
GDM only occurs in what type of
individuals?
Pregnant women
The following increases with stress,
EXCEPT:
Iron
Which of the following is NOT TRUE about
capillary tubes?
If there is a blue band color at the end, it
contains an additive.
The central vascular access devices are used
primarily for:
administering fluids and medications,
monitoring pressures, and drawing blood
Which of the following statement about
specimen requirements (during drug testing)
is INCORRECT?
During the collection, a proctor must not be
present to ensure that the identity of the
patient is protected.
Disadvantage of puncturing the brachial
artery include the following, EXCEPT.
Increased risk of infection
Specimens collected from which areas may
yield inaccurate test results.
both edematous and damaged veins
What is the best angle for needle insertion
during ETS method of venipuncture?
15°-30°
When performing arterial puncture, direct
the needle:
Perpendicular to the wrist and lower arm
Prior to collection of ABG, a patient should
have been in a steady state for at least
20-30 minutes
In site selection for skin puncture, which of
the following is TRUE?
Site should be warm and pink in color with
no bruises
The following are reasons for specimen
rejection, EXCEPT
Hemolyzed specimen
Late General Complication of Venipuncture,
EXCEPT;
Thomophlebitis
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.
True
Which of the following statements is true?
-cortisol is elevated from 6:00-8:00 am
Mr. Adarve will be collecting blood for
Complete Blood Count. How many times
should Mr. Adarve inverse the evacuated
tube he needs to use?
8-10x
Which of the following statement about
POCT is INCORRECT?
These tests are not only convenient, but it
also lengthens the turnaround time (TAT).
What will happen if a needle is partially
inserted into a vein?
Hematoma
Which of the following is affected by
excessive drinking of water prior to blood
test?
Electrolytes
After cleaning the venipuncture site with
alcohol, the phlebotomist should;
Allow the alcohol to dry completely.
A trained phlebotomist should:
-Collect capillary blood quickly to minimize
microclot formation.
-Know that a venous blood can be collected
using microtubes.
-Collect specimen for newborn screening
separately
ALL BUT ONE results to Hemolysis
Vigorous fist clenching of the patient
Whose blood results are used in determining
the reference range or intervals?
healthy individuals in their basal state
Which of the following can be caused by
blood leaking from a blood vessel during or
following venipuncture?
Hematoma
A good blood drawer for arterial blood show
good competence when performing
modified allen’s test when
He uses middle and index finger to apply
pressure on the wrist
Warming the capillary puncture site is
associated with which of the following
purposes?
Increase blood flow
During venipuncture, the phlebotomist
observed that the patient appears pale with
beads of sweat on the forehead. These are
signs of:
Syncope
This is also called an indwelling line,
comprises tubing inserted into a main vein
or artery
central vascular access device
What is the required glucose load for
children?
1g per kg body weight
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?
Ask the patient’s nurse to put an ID band on
the patient before you draw the specimen.
The most important step in the performance
of a venipuncture is
Identifying patients
Which of the following statements about
ETOH specimen is FALSE?
Use green-top sodium chloride glass tubes
for specimen collection.
When performing skin puncture and you
warm the site, the sample is called as
Arterialized
Rapidly forming hematoma and blood filling
the tube very quickly are signs that you have
punctured:
an artery
Which of the following statement about drug
screening is FALSE?
The specimen used is blood instead of
urine.
In performing femoral arterial puncture,
needle should be inserted at what angle?
90 degrees
Which of the following arterial puncture site
poses the greatest risk of developing
infection?
Femoral
A trained phlebotomist should
Apply the tourniquet 7.5-10 cm above the
site of puncture
It is an indicator on how well air is
exchanged between the blood and lungs
PCO2
Which of the following statements about
DNA paternity testing is CORRECT?
Sealed and tamper-evident package are
used to hold the specimen during
transportation to the laboratory.
Which of the following tests require arterial
blood as specimen?
Blood gases
A sudden position change of the patient
before collecting blood sample may result to
Both Hemoconcentration and Hemodilution
Smoking stimulates the body’s immune
response and increases the production of
antibodies
False
Which of the following equipment is not
necessary for blood gas collection?
Disposable tourniquet strap
Which of the following statement about
POCT is INCORRECT?
Several manufacturers recommended
disinfecting the instrument using 70%
isopropyl alcohol to reduce the risk of cross
contamination
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?
Lateral plantar heel surface
Capillary puncture equipment includes all of
the following, EXCEPT;
Evacuated tubes
Ms. Recto wasn’t able to collect blood from
Mr. Domingo. She attempt collecting blood
twice, but still failed. What should Ms.
Recto do?
Ask another phlebotomist to draw blood
from patient.
Which of the following statements about
lactose tolerance test is INCORRECT?
If the patient is glucose intolerant, the result
will yield a “flat” curve where lactose levels
just slightly rise over the fasting level.
Which of the following would you think
make an arterial blood acceptable for ABG
testing in the laboratory?
The blood is collected in an anaerobic
manner
Blood gas specimen rejection criteria
include all of the following, EXCEPT:
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)
In locating the vein to be used for
venipuncture, the phlebotomist should;
-Feel the vein using index and middle finger.
-Palpate and trace the path of vein.
How much volume of blood is withdrawn in
therapeutic phlebotomy?
500.0 ml
Which of the following is a disadvantage of
using radial artery for ABG collection?
It is small and difficult to feel
The tourniquet should be released
-Within 1 minute of its application.
-As soon as the blood flow is established.
-Before needle removal from the arm.
What is the indication if the phlebotomist
already hit the vein using syringe method?
You should see a blood that appears in the
hub
A patient who has a collateral circulation:
Has multiple arteries supplying blood to an
area
In administering local anesthetic before
arterial puncture, which of the following
statement is TRUE?
-0.35 mL 1% lidocaine is adequate to use for
some patient
-There should be appearance of wheal after
administration
What is the required glucose load for adults?
75 g
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.
petechiae
Which of the following statements about
ETOH specimen is FALSE?
-The collection uses aqueous povidoneiodine and aqueous 70% isopropyl alcohol.
Other sites where arterial specimens may be
obtained include the following, EXCEPT;
Common carotid artery in the neck
Which of the following statement about
POCT is INCORRECT?
POCT is also known as alternative sight
testing (AST)
Which of the following statement about drug
screening is FALSE?
The chain of custody protocol is not
implemented since legal implications are not
usually involved.
Controlling the depth of lancet insertion
during heel puncture is necessary to avoid
which of the following effects?
Bone injury
ALL BUT ONE cannot be used as site for
venipuncture.
Dorsal part of the hand
Which of the following statements about
lactose tolerance test is INCORRECT?
The GTT curve and the glucose curve will
be different if the patient has mucosal
lactase.
In new born screening, you should not
Collect sample within 24 hours after birth.
Which of the following is considered as the
primary site-selection criteria for arterial
puncture?
Presence of collateral circulation
A good phlebotomist show competence on
performing skin puncture when, EXCEPT
He punctures the 4th finger on the same
side of mastectomy.
A vein which is obstructed, hard and
cordlike, and lacks resiliency is
sclerosed
Which of the following is NOT TRUE about
neonatal bilirubin collection?
This is used for detection of an increased
bilirubin level due to RBC hemolysis.
Forceful aspiration of blood during a syringe
draw will result to hemolyzed specimen.
True
ALL but ONE causes Hematoma.
Transfixation of vein
An arteriovenous shunt is typically created
to be used for dialysis.
True
In using microcollection containers, which
of the following should be filled up first
with blood sample?
Purple top
A good phlebotomist show competence on
performing venipuncture using evacuated
tube system when, EXCEPT;
The phlebotomist unties the tourniquet after
removing the needle
Which of the following is an acceptable
blood smear?
Has smooth transition from thick to thin
What is the best choice of vein for a normal
healthy individual?
Median cubital vein
The capillary blood can be used as sample
for ABG provided that the site is warmed
prior to blood collection.
True
Which of the following actions shows
competence in phlebotomy?
Using a g23 needle for pediatric patients
Which of the following is not included in
testing for ABG using POCT?
-All are included
-CO2
-Ph
-HCO3
-PCO2
Which of the following is the primary reason
of obtaining arterial blood in the hospital
setting?
For evaluation of respiratory function
-For arterial blood gas analysis
Which of the following needle has the
largest diameter?
18 gauge
Which of the following statement about
specimen requirements (during drug testing)
is INCORRECT?
Waterless urinal is not allowed
Blood collection tubes are labeled:
Immediately after specimen collection.
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?
Ask the patient for verbal verification of his
or her name
Potassium levels in the blood increase after
heavy exercise.
True
ALL BUT ONE is a test that cannot be
performed by capillary puncture.
Coagulation studies
Which of the following equipment is not
needed in performing ETS method of Blood
collection?
Luer adapter
This site is considered as the most
commonly used site in performing arterial
puncture
Radial
