phlebotomy final
which anticoagulant prevents coagulation of blood by removing calcium through the formation of insoluble calcium salt
-EDTA -oxalate -citrate ALL THREE
when doing venipuncture on a child, whom should you talk to and explain the procedure to
-child -parent -both
a competency program should verify the competency of a phlebotomist is the area of
-customer service -safety -computer use -all of the above
under which of the following conditions would you avoid a site for venipuncture
-edematous arm -arm with IV -hematoma -ALL OF THE ABOVE
what can happen if you squeeze the patient's figure too vigorously during a capillary puncture
-the sample will be diluted with tissue -hemolysis can occur -both
citrate must be within __ % of full to give accurate results
10
10mL is the same as
10cc
the life span of the red blood cell is approximately
120 days
through which size of needle will blood flow the fastest
20
which bore (diameter) of the needle is the smallest
23-gaugeneedle
in performing an arterial puncture, you should puncture the artery using a
45-degree angle of insertion with the bevel of the needle facing the elbow
the average person can listen at the of approximately ____ words per minute, and can speak at the rate of ____ words per minute
500-600; 100-200
all of the following are vaccine-preventable diseases except
AIDS
the anticoagulant preferred for hematology testing is
EDTA
all of the following are components in the chain of infection except
HBV vaccine
which of the following is not classififed as personal protective equipment (PPE)
HBV vaccine
five components that are found in CBC with diff. are
WCB, RBC, hemoglobin, hematocrit, differential
what is the best sample for urine collection
a clean-catch midstream urine sample
glycolysis occurring in a tube of unseperated blood will cause
a decrease in serum glucose concentration
the phlebotomist who tends to smooth over a conflict is known as
accommodator
the most common source of laboratory error is
administrative
children understand illness in different ways. what age group might think that an illness is a punishment for being "bad"
ages 2-6
pathogens are transmitted on dust particles in the air currents
airborne precautions
to demonstrate competency, a phlebotomist must verify the ability to collect blood samples from what age group
all age groups
which blood vessels generally carry blood that is high in oxygen
arteries
you cannot perform a venipuncture successfully after two attempts. you should
ask another phlebotomist try
serum is described as icteric in the presence of increased
bilirubin, causing jaundice
a patient is having blood collected and asks the phlebotomist to have a copy of the results sent to a physician who was not listed on the requisition. what should the phlebotomist do
call the ordering physician to see if this is permissible
the function of the erythrocyte is to
carry oxygen
the process of producing energy by breaking down of complex compounds is
catabolism
what is the type of phlebotomy where phlebotomist is part of the laboratory team and is dispatched to the nursing units from the laboratory
centralized phlebotomy
which occurrence is not a cause of sample rejection
clot in a red, black, or gold top tube
if the blood is drawn to quickly fro a vein, the vein will have a tendency to
collapse
which of the following supports and connects organs and tissue
connective tissue
you receive an order to draw a STAT CBC. your responsibility is to
draw blood in a lavender tube and send it to the lab promptly
a patient comes to have a monthly Prothrombin time (PT) collected. you must use a butterfly system because of the patient's small veins. this is the only test you need to draw. what must you remember to do first
draw discard tube to remove air in the tubing
gloves should be worn
during all venipunctures and capillary punctures
the channel for transporting material in and out of the nucleus
endoplasmic reticulum
the tissue that protects the body by covering internal and external surfaces
epithelial tissue
which arteries are least suitable for drawing blood gases
femoral
the function of leukocyte
fight infection
when a patient refuses to have blood drawn, the phlebotomist should do all of the following EXCEPT
force the patient to have blood drawn
Standard Precautions state that if there is a possibility of coming into contact with a patient's blood or any othe body fluids, you must wear
gloves
the tricuspid and bicuspid valve are associated with the
heart
what can happen if the tourniquet is left on too long before drawing blood
hemoconcentration
an arterial puncture is more likely to result in a hematoma than a venipuncture is because of
higher pressure in the arteries
when drawing blood samples, which of the following should be performed first
identify the patient
what laboratory department tests a type and cross-match
immunohematology
warming the skin puncture site
increases the blood flow through the arterioles and capillaries sevenfold
the process in which oxygen-rich blood diffuses into tissue cells is
internal respiration
the glucose tolerance test
is performed to aid in the diagnosis of diabetes mellitus
unconscious posture, gestures, and facial expressions are known as
kinesics
to achieve quality customer service, the phlebotomist must meet what customer needs
know what the customers wants, determine the level of service received, and take action to satisfy the customer
a patient sitting in a chair has fainted. possible acceptable actions by the phlebotomist include all of the following EXCEPT
leaving a patients unattended
in what order should serum (SST) tube, a green tube, light blue tube and lavender tube be filled from a syringe
light blue, serum, green and lavender
serum is described as lipemic in the presence of increased
lipids in a nonfasting sample
hypoglycemia is a condition of
low blood sugar
a properly collected 24hr urine sample
may contain a chemical preservative
the process of making substances or breaking down substances so that the body can function is
metabolism
the system responsible for body movement is
muscle
eye contact is a method of ______ communication
nonverbal communication
what does NPO mean
nothing by mouth
the part of the cell that controls the activities o the cell (brain of the cell) is the
nucleus
what hospital department cares for patients with cancer
oncology
where in the hospital would you expect to find a patient with a broken bone
orthopedics
which laboratory employee has the most education and is usually a consultant to other physicians
pathologist
what is the best technique the phlebotomist can use for a safe and successful venipuncture
patience and understanding
what is the major drawback of a 24hr urine collection
patient cooperation is essential and is often hard to get
the most critical step in phlebotomy is
patient identification
when a patient has had a mastectomy venipuncture should be avoided on the affected side because the
patient is more susceptible to infection
a patients info that connected to their medical info is
personal health info (PHI)
the formed elements of blood found inside a tube drawn with an anticoagulant are
plasma, buffy coat, and erythrocytes
which cells contribute to blood clotting
platelets
a test performed after a meal is called
postprandial
the primary purpose of infection control is to
prevent the spread of communicable diseases within health care facilities
which does not carry oxygenated blood
pulmonary artery
blood flows from the right atrium into the right ventricle. from this point it is pumped through the
pulmonary artery to the lungs
the artery that lies on the thumb side of the wrist is the
radial
which two arteries are occluded when the Allen test is preformed
radial and ulnar
in general, a syringe is used when drawing specimens and/or patients ECXEPT
requests or multiple testing requiring anticoagulants and multiple tubes
which statement best summarizes the quality of blood samples
samples of low quality can produce inaccurate and potentially dangerous
an unexpected occurrence in the health care facility that involves death or serious injury is
sentinel event
which is referred to as the pacemaker of the heart
sinoatrial node
in a skin puncture procedure, hemolysis can occur from
squeezing the heel or figure to hard
a CBC is collected by figure stick from a patient. the results of the CBC show a lower WBC and platelet count than blood collected the previous day. what causes this change
the blood was collected too slowly and partially clotted in the collection container
which of the following is true about microcapillary collection
the first drop of blood should be wiped away
the patient's fasting glucose can be elevated if
the patient ate before having blood drawn
preexamination errors are variables that occur to a sample before the sample is tested. the type of error caused by the phlebotomist would be
the phlebotomist putting the incorrect name on the tube of blood
what is the function of the coronary arteries
the supply oxygenated blood to the heart muscles
which one is NOT a preexamination error
the technologist running the wrong test on a sample
which of the following is NOT a leukocyte
thrombocytes
glucose tolerance test and therapeutic drug monitoring tests have which of the following collection requirements in common
timed sample
what is the purpose of the bleeding time test
to assess platelet function
why is the first tube discarded when you are drawing from an indwelling line
to remove heparin or saline contamination
why must the first drop of blood from a capillary puncture be wiped away
to remove tissue fluid
the main function of the circulatory system is to provide
transportation
when blood is drawn to monitor the therapy of a specific antibiotic, the peak level is drawn 1hr after administrating the antibiotic. the term used to refer to the antibiotic level drawn right before the antiboitic is given is called the
trough level
an unconscious, unidentified man is admitted to an emergency trauma center. what would be the system of choice to ensure patient identification
use a three-part identification system that utilizes a temporary armband and labels for specimens and blood to be transfused
to fill an evacuated tube with blood from a syringe, the phlebotomist should
use a transfer device by removing the syringe needle after the safety shield has been engaged and then attaching the syringe to the transfer device for filling the evacuated tubes
what should you do if you accidently stick yourself with a contaminated needle
wash hands and clean and bandage the puncture site. record the patients name and ID number, report the incident to your supervisor and fill out an incident report
