when accepting a specimen for transport to lab from nursing unit it is important to verify

patient identification information

request to collect ABG specimen. Patient has a positive Allen test on R arm. What should u do?

collect the specimen from the right radial artery?

TDM trough concentration may be defined as the

lowest concentration of the drug during dosing interval

which activity is least likely to lead to failure to draw blood?

choosing a vein that has patency

in collecting blood cultures, one of the most frequent errors made is

improper cleansing of the collection site

To "balance" a centrifuge means to :

put tubes of equal size, amount of specimen opp each other

Molecular genetic testing requires

specimens to be collected in sterile EDTA

which of the following would most likely be rejected for testing?

hemolyzed specimen for potassium testing

which activity can contaminate blood specimen and affect the testing performed on it?

all of the above can affect testing done on a specimen

latent fibrin formation in serum can result from

incomplete clotting when centrifuged

when does the lookback program occur?

when blood service is made aware of a transfusion infection

the medial plantar surface of the heel is located

on the big toe side of the bottom of the heel

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Phlebotomy final exam 9-14

125 termsStudBud Administration50 plays

final exam for Dec 15th

Flashcards125 cardsFPractice quizPHost liveL

Questions 125

Answers

1
which of the following tests is affected the most if collected from a crying infant?
lead level
cholesterol
bilirubin
WBC count
2
using cap. puncture to collect following microtubes from patient, which is collected first
red top
gray top
green top
purple top
3
information in the form of alternately spaced black bars and white spaces is called a/an
bar code
mnemonic
accession number
ID code
4
a single routine arterial specimen for both ABG and electrolyte testing should be transported
on ice
at room temperature
green-top tube
STAT
5
most important criterion selecting an artery for ABG collec provided no other reason avoid site
depth of the artery
collateral circulation
dominance of the arm
strength of the pulse
6
when accepting a specimen for transport to lab from nursing unit it is important to verify
name of nurse requesting transport
physician requesting the test
billing code information
patient identification information
7
this device automatically resets itself correct point for data input after enter key is pressed
ROM
icon
cursor
CPU
8
request to collect ABG specimen. Patient has a positive Allen test on R arm. What should u do?
collect the specimen from the right ulnar artery
perform the Allen test on the left arm
collect the specimen by capillary puncture
collect the specimen from the right radial artery?
9
when collecting plasma specimen/pat has iv left arm near wrist/hematoma right arm/best place to
all of the above are acceptable collection sites
above the IV
from the IV after shutting it off for 2 minutes
distal to the hematoma
10
Pilocarpine is used in this test procedure
CSF collection
bone marrow biopsy
sweat chloride
gastric analysis
11
the anticoagulant used in ABG specimen collection is
sodium citrate
heparin
potassium oxalate
EDTA
12
which of following actions by a specimen processor violates OSHA regulations?
wearing unfastened lab coat while creating specimen aliquots
loading specimens into centrifuge w/o gloves
pouring specimens into aliquot tubes instead of using pipett
all of the above
13
blood loss to a point that life cannot be sustained is called
iatrogenic anemia
exsanguination
diurnal variation
vasovagal syncope
14
do NOT use povidone-iodine to clean skin puncture sites because it interferes with
potassium results
all of the above
phosphorus results
uric acid results
15
average normal body temperature is
98.6 C
37 degrees F
37 degrees C
20 degrees F
16
patients arm in anatomical position/loop under skin between wrist/elbow/buzzing sensation
a PICC
a sclerosed vein
an implanted port
an AV graft
17
which of the following would most likely lead to recollection of a drug screen specimen
pH is too high
SG is too low
All of the above
pH is too low
18
this test requires a 24 hour urine specimen
creatinine clearance
glucose tolerance
HCG detection
Urine cytology
19
a urine pregnancy test detects the presence of
UTI
DNA
AFP
HCG
20
TDM trough concentration may be defined as the
highest concentration of the drug during dosing interval
maximum effectiveness of drug in the tissues
none of the above
lowest concentration of the drug during dosing interval
21
which activity is least likely to lead to failure to draw blood?
choosing a vein that has patency
loosely anchoring the vein
using a tube that was dropped
leaving the tourniquet on too long
22
which of the following is an acceptable range of needle gauges for arterial puncture?
16 to 21
23 to 28
20 to 25
18 to 23
23
urine cytology studies can be performed to detect
meningitis
cytomegalovirus
alpha-fetoprotein
infertility
24
an ABG specimen is most likely to be rejected if it
is collected in a glass syringe
is determined to be QNS
contains only around 2 mL of blood
arrives at the lab 20 minutes after collection
25
in collecting blood cultures, one of the most frequent errors made is
incorrect labeling of the media bottles
not noting the venipuncture location
improper cleansing of the collection site
failure to inoculate two media bottles
26
which of the following equipment is needed for a malaria test?
glass slide
capillary tube
microhematocrit tube
clay sealant
27
Synovial fluid is aspirated from the
stomach
lungs
heart
joints
28
Glycolysis can falsely lower glucose values at a rate of up to
3% to 5% per hour
1% to 3% per hour
5% to 7 % per hour
6% to 10% per hour
29
To "balance" a centrifuge means to :
fill it completely with tubes that are all same specimen
put tubes of equal size, amount of specimen opp each other
place on a sturdy counter w/ a level & motionless surface
all of the above
30
Molecular genetic testing requires
freezing of the spun sample immediately
chain of custody protocol to be followed
specimens to be collected in sterile EDTA
RNA tubes to be incubated at 37 degree C
31
which of the following would most likely be rejected for testing?
UA specimen in a container that is not sterile
bilirubin specimen in a half-filled microtube
CBC specimen in a slightly underfilled tube?
hemolyzed specimen for potassium testing
32
glycosylated hemoglobin is performed to monitor effectiveness of therapy which condition?
inflammation
acidosis
renal disease
diabetes
33
adult capillary puncture may be performed when
veins must be saved for chemotherapy
there are no accessible veins
the patient has thrombotic tendencies
all of the above
34
In collecting a blood alcohol test for forensic purposes, the venipunc site can be cleaned with
methyl alcohol
benzalkonium chloride
tincture of iodine
isopropyl alcohol
35
it is necessary to control the depth of lancet insertion during heel puncture to avoid
excessive bleeding
bacterial contamination
puncturing a vein
bone injury
36
in addition to ID info which of following is typically documented b4 ABG specimen collection
history of smoking
FiO2 or L/M
room temperature
all the above
37
results of this test have a direct correlation with the patients age
glucose
blood culture
hemoglobin
creatinine clearance
38
a blood specimen aliquot can remain at room temperature no longer than
2 hours
4 hours
1 hour
8 hours
39
An inherited metabolic disorder detected through newborn screening is
phenylketonuria
potassium
glucose
diabetes
40
which activity can contaminate blood specimen and affect the testing performed on it?
all of the above can affect testing done on a specimen
cleaning site with alcohol before drawing and ETOH specimen
using povidone-iodine to clean site prior to a finger punctu
collecting blood cultures b4 the povidone-iodine is dry
41
latent fibrin formation in serum can result from
a long delay before centrifuguation
incomplete clotting when centrifuged
a centrifuge speed that is set too high
gross hemolysis of the specimen
42
which of the following personnel may be required to perform arterial puncture?
MTs
all of the above
Phlebotomists
EMTs
43
when does the lookback program occur?
when blood service is made aware of a transfusion infection
at time the unit is collected at the blood donor center
b4 the blood unit is matched to a recipients blood sample
if there is a transfusion of incompatible blood to patient
44
blood bank specimens require which of the following ID information?
patients full name
patients date of birth
date and time of collection
all of the above
45
the medial plantar surface of the heel is located
on the little toe side of the bottom of the heel
at the very back portion of the heel
on the big toe side of the bottom of the heel
in the middle of the bottom of the heel
46
the specimen for this test requires stat handling & is typically coll by dr.in 3/4 sterile tube
CSF analysis
nasopharyngeal culture
gastric analysis
suprapubic urine specimen
47
Sputum specimens are used to detect
recent drug use
cystic fibrosis
pregnancy
Tuberculosis
48
which specimen may take longer than normal to clot?
specimen from a patient with a high WBC count
all of the above
chilled specimen that is from an outpatient clinic
specimen from a patient on anticoagulant therapy
49
Peak and trough specimens are collected for
therapeutic drug monitoring
blood units to be cross-matched
cardiac enzyme evaluation
blood cultures times two
50
a urine sensitivity test
identifies a microorganism
detects inflammatory disorders
screens for illegal drug use
exposes antibiotic susceptibility
51
bone marrow samples are typically evaluated in
chemistry and microbiology
hematololgy and histology
coagulation and blood bank
serology and immunology
52
which of the following POC tests is used to monitor warfarin therapy?
PTT
BN
INR
ACT
53
this type of sample can show evidence of long-term drug use
saliva
breath
feces
hair
54
which specimen should not be centrifuged?
protime
CBC
vit B12
glucose
55
the fasting specimen for a GTT is drawn
when the timing for the test begins
as close to 6:00 am as possible
before the test has actually begun
right after teh glucose drink is finished
56
the abbrev. of the organization established to ensure that POC analyzers are able to talk LIS
DOT
IATA
CIC
LCIA
57
withdrawing a unit of blood from a patient for therapeutic purposes is used as a treatment for
all of the above
bacteremia
polycythemia
major surger
58
The HemoCue Plasma/Low Hemoglobin instrument is used to indicate
hemolyzed red cells
respiratory distress
iantrogenic anemia
kidney malfunction
59
Capillary collection is the preferred method of blood collection in infants because
venipuncture may damage veins and surrounding tissue
all of the above
removing larger quantities of blood can lead to anemia
an infant can be injured by the restraining method used
60
the abbreviation for computer memory that can be lost ifnot saved is
REM
ROM
RAM
RIM
61
must collect ABG when patient is breathing room air/jus toff vent, how long do you have to wait
after 1 hour
20 to 30 minutes
in 5 to 10 minutes
immediately
62
Postprandial refers to
just before eating
after eating a meal
after fasting for 2 hours
after medication
63
prior to performing a test on a POCT instrument, phlebotomist should
be familiar with the instruments maintenance procedures
all of the above
understand the quality assurance aspects of the instrument
be able to operate the instrument correctly
64
which of the following specimens would most likely be rejected for testing?
a hemolyzed potassium specimen
an icteric bilirubin specimen
an underfilled serum tube
a nonfasting glucose specimen
65
Hyperkalemia means
decreased calcium in the blood
increased potassium in the blood
increased calcium in the blood
increased sodium in the blood
66
The specimen for this test should not be chilled
potassium
homocysteine
lactic acid
ammonia
67
which of the following tube additives is preferred for collection of blood culture specimen
potassium oxalate and fluoride
sodium or potassium heparin
citrate phosphate dextrose
sodium polyanethol sulfonate
68
normally, when the needle enters the artery
the syringe plunger starts to vibrate
you may hear a soft swishing sound
a flash of blood appears in the syringe
all of the above can happen
69
this test is used to detect Helicobacter pylori
Guaiac
NP culture
C-UBT
AFB
70
blood smears made using EDTA specimens should be prepared within
1 hr of specimen collection
6 hours of specimen collection
24 hours of specimen collection
2 hours of specimen collection
71
which of the following procedures is required for a BC using a Chloroprep kit?
cleansing bottle tops with isopropyl alcohol
using concentric circles with PVP
scrubbing for a full 2 minutes
isopropyl swab before using chloroprep
72
the best way to keep a vein from rolling is to:
use a large-diameter needle
make certain to anchor it well
insert needle at a 45 degree angle
tie the tourniquet very tight
73
input devices include
cursors
monitors
icons
glidepads
74
Pediatric blood cultures creates challenges because
BC collection requires 2 sets of cultures from one venipunct
most ill children already rec'vd broad spectrum antibiotics
special media bottles are made to accomidate childrens veins
the antiseptic technique is diff if u you chloroprep swab
75
Inadequate mixing of an anticoagulant tube can lead to
extreme hemolysis
cell decomposition
microclot formation
immediate glycolysis
76
typical labeling requirements for a blood bank specimen include
hospital ID # only, no other identifyer is accepted
patients DOB and date and time of collection
patients fir/last name,no middle initial needed
full name of dr who ordered the crossmatch
77
you insert needle/properly engage tube/no blood flows/make subtle needle adjustments/what next?
keep redirecting needle until you hit a vein
lift up on the needle to create a steeper angle
try a new tube in case it is a vacuum problem
discontinue draw/try somwhere else
78
According to CLSI this test is negatively affected by tube system transportation
creatinine
potassium
uric acid
albumin
79
The concentration of this analyte is normally lower in capillary specimens that in venous specS
all of the above (correct this later)
hemoglobin
calcium
glucose
80
O2 saturation measures the
amount of oxygen dissolved in the plasma
oxygen pressure in the lungs
percent of oxygen bound to hemoglobin
alkalinity of the blood plasma
81
a stool specimen is needed for the ______ test
A1 c
Guaiac
Lipid
strep
82
an infant bilirubin specimen is collected in an amber microtube to
flag it as a capillary speimen
protect the specimen from light
identify it as a bilirubin specimen
reduce the chance of hemolysis
83
which of the following is the most likely to affect test results
syncope
edema
reflux
petechiae
84
In DOT's 10 step to coll sitte/secur/integ, drug screen testing is secured for collect urine sp
employee takes specimen to the testing site
employee is closely observed by video camera
collection site is inspected after completion
employees must empty pockets and leave bags behind
85
which of following should be removed from list of tests that the i-STAT instrument can measure?
CBC & PT
Na+ and K+
Hgb and Hct
Gluc and BUN
86
which of the following represents proper capillary specimen collection technique?
squeeze finger hard to get very best blood flow
clean site with alcohol and wipe it dry so it will not sting
puncture skin parallel to whorls of fingerprint
touch scoop to the blood drop, not skin surface
87
which of the following PKU collection techniques is incorrect?
completely fill every circle
air-dry the slips horizontally
fill circles from both sides
do not touch the filter paper
88
monitoring quality of waived testing being done at bedside is a challenge for lab because
more tests are classified as waived each yr
technology cant keep up with big deman
quality control is not required for waived testing
personnel doing waived testing are not trained
89
which is the first choice artery for ABG collection?
brachial
radial
ulnar
femoral
90
when thawing a frozen sample, the procedure is to
thaw it in refrigerator/mix only when thawed
heat it in a warm water bath/invert it occasionally
warm it at 37 degree C/mixing it when ready for testing
warm it to 25 degree C/invert 10 to 20 times after thawing
91
which 2 federal agencies work together to regulate transporting of biological specimens offsite
CLIA/IATA
DOT/IATA
FDA/OSHA
CAP/CLSI
92
for what purpose is the oral glucose challenge test used?
to detect absorption function disorders
to check for lactose intolerance
to assess kidney and bladder function
to screen for gestational diabetes
93
a hematoma may result from
all of the above can result in hematoma formation
inadequate site pressure applied after venipuncture
using a needle that is too large for the size of vein
needle penetration thru the back wall of vein
94
which of the following is a clue that you have accidentally punctured an artery instead of vein
all of the above are clues
the blood spurts into the tube
the blood is dark bluish red
the patient feels great pain
95
a plasma specimen for this type of test cannot be collected by capillary puncture
chemistry
hematology
coagulation
all of the above
96
patient has mastectomy left side/IV midway down right arm/what is best place to do venipuncture
above IV on the right arm
in the left hand or wrist
in the left antecubital area
below IV on right arm
97
which of the following can be detected by chemical analysis of a urine specimen?
glucose
crystals
clarity
all of the above
98
the risk of hematoma associated with arterial puncture is greatest if
the patient is on a blood thinner
a large diameter needle is used
all of the above
the patient is elderly
99
in performing radial artery puncture, the needle should enter the skin
lateral to where the pulse is felt
proximal to where the pulse is felt
at the point where the pulse is felt
distal to where the pulse is felt
100
which of the following tests doesnt require spec chain-of-custody documentation when collected
Drug screen
TDM
paternity testing
BAC
101
Most POC analyzers are interface capable, but the decision to do so is based on the
number of analyzers that are available
type of POCT instrument being used
cost of the test that is being performed
impact the test result has on the patient
102
according to teh Red Cross, persons wishing to donate blood must be
a resident of the state for at least 3 yrs
no less than 120 lbs and ambulatory
at least 17 yrs old in most states
fasting for 8 - 12 hrs before arriving
103
performin GTT , fasting is drawn 6:15, pat. finishes beverage 6:30. when should 2 hr spec be do
9:30
9:15
8:15
8:30
104
skin pain fibers increase in abundance
below 2.4 mm in depth
within the vascular bed
beyond 4.9 mm in depth
in the upper epidermis
105
which of the following specimen conditions would lead you to suspect patient was not fasting?
pale-yellow plasma
yellowish brown serum
pink to reddish plasma
cloudy white serum
106
the difference between bar codes and radio frequency identification is
RFID can work up to 100 feet away
radio frequency ID is less expensive
RFID cannot be used to label speimens
radio frequency ID is not standardized
107
according to GAP guidelines, drugs that interfere with blood tests should be stopped
4-24 hrs before the test
48-72 hrs before the test
24-48 hrs before the test
1-4 hrs before the test
108
which of the following is a recommended site for finger puncture in adults
end segment of the little finger
proximal segment of ring finger
plantar surface of index finger
distal segment of the middle finger
109
wipe away the first drop of blood during capillary puncture to
reduce the chance of hemolysis
remove any alcohol residue
all of the above
minimize tissue fluid contamination
110
the serum or plasma of a hemolyzed specimen would most likely look
pale yellow
yellowish brown
cloudy or turbid
pinkish to red
111
underfilling this tube will most likely result in a hemolyzed specimen
EDTA tube
light blue top
SST
gray top
112
middle of drawing a blood specimen/patient starts to faint/first thing you should do is
tell patient to lower the head and breathe deeply
quickly release tourniquet and remove the needle
apply cold compress to patients head
grab ammonia inhalant and wave it near patients nose
113
Normal operation of a computer is controlled by:
systems software
hardware
applications software
storage memory
114
autologous donation is performed to
save time in surgery
correct polycythemia
prevent stress on the heart
avoid a transfusion reaction
115
which of the following urine specimens will normally have the highest specific gravity?>
random
midstream
24 hour
first morning
116
specimens transported by a courier must
transported horizontally for safety
centrifuged prior to transportation
protected from direct sun exposure
be kept close to body temperature
117
the primary purpose of warming a capillary puncture site is to
minimize contamination
delay clotting
increase blood flow
reduce hemoconcentration
118
which is the best way to tell that the specimen you are collecting is in fact arterial blood?
a flash of blood appeared in the syringe on needle entry
the color of the blood is bright cherry red
there is no way to tell for certain
blood pulsed into the syringe under its own power
119
which of the following can result in a blood smear that is too long?
patient has a high hemoglobin level
blood drop is too large or too thin
angle of spreader slide is too steep
spreader slide is pushed too quickly
120
during a GTT which of the following is acceptable>?
allowing patient to drink water at any time during test
timing all specimen collection after fasting spec was collec
giving coffee to patent after drawing fasting specimen
permitting patient to chew sugarless gum and smoke
121
results of a bilirubin test specimen exposed to light for an hr can be decreased up to
10%
65%
50%
25%
122
Blood levels of this specific analyte begin to rise within 4 hrs of an MI
LDL
ALT
BNP
TnT
123
the medical term for fainting is
edematous
reflux
syncope
exsanguination
124
a specimen is delivered to a laboratory that has an LIS, the very next step is to
scan the bar code for verification
assign it an accession number
order and print a collection label
send the charge for it to billing
125
capillary blood composition more closely resembles
venous bloos
tissue fluid
arterial blood
lymph fluid

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