Don, a phlebotomist who collects only capillary blood from newborn and pediatric patients probably would have all the following equipment on his blood collection tray except:
serum separator BD VACUTAINER
If the tourniquet is applied to the arm for longer than 2 min which of the following analytes will most likely become falsely elevated
potassium
Why is it important to get patient information about latex sensitivity
allergies to latex cause skin irritations or can cause anaphilactic shock
Prior to performing a venipuncture, why is it important to get information about whether or not the patient has eaten recently
laboratory tests can be affected by the ingestion of food and drink
Name one step that should not be in the handwashing procedure:
turning off the water faucet with hands
If a patient is obese, what special equipment, if any, would be helpful in the specimen collection process
a large blood pressure cuff
when a patient has difficult veins, what strategies, if any, can be used to improve the likelihood of a successful puncture
palpating the entire antecubital area to trace vein path
warming the site
slight rotationof the patients arm to a different position
Arteries differ from veins in which of the following ways
thicker vessel walls with a pulsating feel
if arm veins cannot be used for a venipuncture, the preferred alternative veins lie in the :
dorsal side of the hand or wrist
where should the tourniquet be placed on the patient during the venipuncture procedure
3 inches above the venipuncture site
during the venipuncture, the needle should be inserted at what angle to the skin
30 degrees or less
during the venipuncture procedure, what should the phlebotomist do after the needle is inserted and blood begins to flow
release the tourniquet
when the evacuated tube method is used for venipuncture, select the correct order of collection for the following tubes: blood culture tubes, coagulation tube, and hematology tube. Choose the order of tubes by their color of closures
yellow blood culture tubes, blue, lavender
which of the following information is essential for labeling a patients specimen
the patients name and indentification number, date and time of collection, the phlebotomists initials
The term STAT refers to :
immediate and urgent specimen collection
Why is it important to get patient information about latex sensitivity
allergies to latex cause skin irritations
steps in the identification process should include:
a 3 way match with verbal, ID bracelet, and requisition information
If a patient is frail and has a tendency to faint, what equipment, if any, would be helpful in the specimen collection process
a recliner
If a patient has a bruise in the antecubital area of his right arm
the antecubital area of the left arm
One reason for hematoma formation during venipuncture is that the
needle is partially inserted in the vein
If a venipuncture procedure is almost completed and suddenly you see hints of a hematoma beginning to form, what should you do
discontinue the procedure and apply pressure with gauze
How manuy more times should a phlebotomist try to perform a venipuncture on a patient if he has failed once already
twice
when using the syringe method to collect a blood specimen, how is the blood added into additive and
the needle is removed from the syringe, the caps are removed from tubes, and blood is pushed into each tube, then restppered and mixed.
using a syringe transfer device attached to the syringe, insert each tube into the device and allow the blood to flow f
which specimen collection tube is commonly used for hematology tests
EDTA - anti coagulant
adding to much blood to a sodiu, citrate tube can cause
shorter clotting time
when collecting a blood specimen with the butterfly method and PT, PTT tests are the only tests ordered, what is the correct procedure
use a discard tube, then collect a sodium citrate tube
which specimen collection tube is commonly used for hemostasis tests
sodium citrate
specimens may be rejected for a variety of reasons, most of which can be prevented by experienced, professional phlebotomists. Identify one reason for specimen rejection that relates to unnecessary but excessive remixing of the specimen
specimen is hemolyzed
a solid mass derived from blood constituents that occludes a blood vessel is a
thrombus
if the tourniquet is applied to the arm for longer than 2 minutes, which of the following analytes will most likely become falsely elevated
potassium
when blood is to be collected for a glucose tolerance test the patient should fast for
8 to 12 hours
a basal state exists
in the early morning, 12 hours after the last ingestion of food
which of the following analytes is significantly increased in the blood with changes in position
iron
an abnormal accumulation of fluid in the intercellular spaces of the body that is localized or diffused is referred to as
edema
which of the following laboratory test results is affected most if the patient is not fasting
triglycerides
diurnal rhythm has a mafor effect on which of the following blood analytes
acth
which of the following is another term for fainting
syncope
when the phlebotomist collected blood from the patient, the patient was in a supine position,k meaning the patient was
lying
upon entering ms mewhouses hospital room, the phlebotomiswt introduced herself and explained she was going to collect blood for laboratory tests requested by the physician. the patient became very anxious and said she was frightened of needles, then she s
serum iron level
which of the following has been shown to erroneously affectg laboratory test results, leading to falsely elevated results
violent crying
swelling in the area around a venipuncture site usually leads to
hematoma formation
which of the following should stop the health care worker from collecting blood from a patients arm vein
mastectomy on the same side
which of the following would most likely not be an explanation for turbid serum
elevated glucose
when hemoglobin is released from rbcs and serum becomes tinged as pink or red this condition is referred to as
hemolysis
a decrease in the plasma volume occuring with an increased concentration of cells and larger molecules such as cholesterol is referred to as
hemoconcentration
which of the following occurs as the result of inflammation and disease of the interstitial compartments
sclerosed veins
if a patient begins to have a seizure during venipuncture, the phlebotomist should immediately
release the tourniquet
when a patient is on IV therapy and the venipuncture must occur in the arm with the IV line, the
nurse should shut off the IV for 2 minutes prior to the venipuncture
hemolysis in collected blood can cause a falsely decreased value for
hemoglobin
which of the following analytes will be falsely increased when a sodium citrate blood collection tube is underfilled
PT
which of the following clinical laboratory departments usually use serum separator tubes for many of their blood collections
clinical chemistry
the edta blood collection tubne must not be underfilled, since it has been shown to lead to
low hematocrit levels
what additive destroys the enzymes in the blood when the gray topped tube is used to collect blood
sodium fluoride
which of the following laboratory test results are affected most if the patient is not fasting
glucose
which of the following is a capillary blood collection system
safe-wrap combo blood collection tubes
sps tubes are used in the collection of
microbiology specimens
lithium heparin is a suitable anticoagulant for which of the follwoing studies
glucose level
which of the following additives found in a royal blue topped blood collection tube
clot activator
the yellow topped blood collection tube has which of the following additives
sodium polyanetholesulfonate
the safety butterfly blood collection system is frequently used with a needle gauge size of
21
for newborns the penetration depth of safety lancets for blood collection must be
2.0mm or less
the unopette can be used for
microcollection and dilution of blood samples for the WBC count
which of the following additives prevent coagulation of blood by removing calcium through the formation of insoluble calcium salts
EDTA, potassium oxalate, sodium citrate
which of the following needle gauges has the smallest diameter
23
if the phlebotomist collects only venipuncture specimens which of the following would not be needed on the specimen collection tray
tenderletts
a blood cell count requires whole blood to be cdollected in a
lavender topped tube
which of the follwing tests usually requires blood collected in a tan topped blood collection tube
lead
which of the following is a commonly used intravenous device that is sometimes used in the collection of blood from patients who are difficult to collect blood by conventional methods
butterfly needle
which of the following is a serum separation tube
vacuette serum tube
the color coding for needles indicates the
gauge
which of the following anticoagulants is found in a green topped blood collection tube
sodium heparin
which of the following is an anticoagulant used in blood donations
citrate phosphate dextrose
the gold topped blood collection tube should be gently inverted how many times after blood is collected
5 times
don a phlebotomist who collects only capillary blood from newborn and pediatric patients probably would have all of the following equipment on his blood collection try except
serum separator BD Vocutainer tubes
which of the follwoing blood collection tubes is most appropriate for the sterile blood collection of trace elements and nutritional studies
royal blue topped tube
which of the following blood collection tubes is most appropriate for the collection of blood for a DIFF
purple topped tube
how many times should the lavender topped blood collection tube be inverted after blood collection
8 times
which of the following additives is not in a gray topped blood collection tube
sodium citrate
which of the following blood collection tubes is most appropriate for blood bank collections
pink topped tube