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