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346 Cards in this Set

  • Front
  • Back
Coagulation tubes have which color stopper?
light blue
Hematology tubes have which color stopper?
Serum tubes have which color stopper?
A health care-acquired infections are called?
Nosocomial infections
A inherited condition that is caused by the body's inability to metabolize phenylalanine (protein) is called:
A lavender stoppered evacuated tube must be redrawn because of clots in the tube. What collection error causes this?
insufficient mixing of additive with specimen
A patient has undergone a left radical mastectomy. What site can not be used for venipuncture until the patient's physician is consulted?
left arm
A patient suffers a transfusion reaction. What may this condition cause in the patient's specimen?
A phlebotmist is to collect a specimen for an APTT and prothrombin time from a patient. According to the NCCLS guidelines, what tube stopper color should the phlebotomist collect FIRST?
A phlebotomist enters a patient's room at 5:30 am, but the patient is asleep. The phlebotomist should:
gently wake the patient and proceed
A phlebotomist is about to collect a blood specimen from a patient in ICU, but the patient is unconscious. The phlebotomist should:
proceed as though the patient were conscious
After performing a routine venipuncture, the phlebotomist noticed that the blood in the evacuated tube was bright cherry red. What vessel did the phlebotomist puncture?
After puncturing a finger during a skin puncture procedure, what is the next step?
Wipe away the first drop with gauze.
Agranulocytes that function in antibody production are called:
An evacuated tube contains clot activator and serum separator gel. What color is the Hemogard TM closure?
An example of a specimen that requires protection from light is:
Billirubin, beta-carotene and porphyrins.
Antidiuretic hormone (ADH) requires which of the following blood collection tubes for proper test results?
At least how long should a warmer be applied to a skin puncture site prior to making a skin puncture?
3 minutes
Before starting a bleeding time test, the phlebotomist should:
ask the patient if he or she has taken any medications
Bleeding time is used to access what?
platelet function, blood vessel integrity
Bleeding time procedures are usually ordered:
Blood collection for neonatal screening to detect metabolic and genetic abnormalities usually occurs:
by collecting from the lateral plantar surface of the heel.
Blood enters the right side of the heart from what blood vessel?
superior vena cava
Blood enters the left side of the heart from what blood vessel?
pulmonary vein
Blood exits the heart from the left ventricle through what valve?
Blood exits the heart from the right atrium through what valve?
tricuspid valve
Blood from a routine venipuncture should have what color?
dark red
Circulating blood cells normally include which of the following:
RBCs, WBCs, platelets.
Deoxygenated blood is found in which blood vessels?
Describe what a phlebotomist should do when using a winged infusion (butterfly) system to collect blood for a single coagulation test?
The phlebotomist should collect at least one other tube prior to collecting a sodium citrate tube.
Drawing blood through a hematoma may cause what to a patient's specimen?
During a venipuncture procedure, patients are often asked to "make a fist." When should the fist be released?
after the blood begins to flow
During a venipuncture procedure, why is it important to "anchor the vein" prior to inserting a needle?
to keep the vein from moving around
During an Ivy Bleeding Time procedure, the blood pressure cuff should be positioned:
above the antecubital crease
During routine venipuncture, the attempt was unsuccessful. What should the phlebotomist do FIRST to end the procedure?
untie the tourniquet
During routine venipuncture, how should the needle be positioned, relative to the vein selected?
same direction
During routine venipuncture, the needle should be inserted at what angles relative to the patient's arm:
15 to 30 degrees
During routine venipuncture, the needle should be inserted bevel....:
During the Ivy Bleeding Time procedure, the blood pressure cuff should be inflated to:
40 mm Hg
During the Ivy Bleeding Time procedure, the phlebotomist should start the stopwatch:
simultaneously with the incision
During venipuncture, a phlebotomist moves the tube gently up and down in the holder, moving the contents back and forth. What may this cause?
During venipuncture, the phlebotomist inserts the needle next to the patient's vein, on the left side of the patient's vein. No blood appears in the evacuated tube. The phlebotomist should?
pull back and reinsert the needle to the right
During venipuncture, the tourniquet, should be left on a patient's arm no longer than:
1 minute
Fibrin degradation products are the end result of the:
fibrinolytic pathway
Following venipuncture by syringe, blood must be aliquoted into the following evacuated tubes: red, sky blue, green. In what order should the evacuated tubes be filled:
sky blue, red speckled/gold, green
For a phlebotomist's hand decontamination, what is an effective alternative to hand-washing with soap and water?
commercially available alcohol-based hand rubs
For infants, the penetration depth of a lancet in a heelstick must be less than / or not exceed:
2.0 mm
Granulocuytes that function in fighting bacterial infections are called:
neutrophilic segmented cells
Hand hygiene is extremely important in blood collection procedures and requires the antiseptic cleaning action of:
70% isopropyl alcohol
Health care workers who use needles are at a higher risk of what type of injuries:
needle stick injuries.
Heel warmers should heat within what temperature ranges?
39 to 42 degrees C
Hemoconcentration of the specimen may be caused by:
prolong tourniquet application, vigorous hand pumping
How many steps are involved in proper patient identification?
2 steps
How much can blood flow to a skin puncture site be increased if a warmer is applied prior to skin puncture?
7 times
How often should gloves be changed?
after every patient encounter
How soon after collection and centrifugation should serum or plasma be removed from cells?
no longer than 2 hours
Ideally for blood specimens, when should serum be removed from the cells?
as soon as possible and not longer than 2 hours
If a patient bleeds excessively after a needle puncture and the blood is bright red, what is the most likely cause?
an artery was punctured.
If a patient develops a hematoma during a venipuncture procedure, what should the phlebotomist do?
Remove the needle immediately and apply pressure.
If a patient is not in his or her room, how should the phlebotomist locate the patient?
ask at the nurse's station
If a patient's wristband matches the requisition entirely except for the medical record number, the phlebotomist should:
contact the nurse's station
If a person is lying on their back, what position is this?
supine (laying on their spine)
If a person is standing erect, with palms facing forward, he or she is in what position?
If a phlebotomist notes that the arm selected for venipuncture is edematous, he or she should:
select another site
If a phlebotomist palpates a vein and determines that it is sclerosed, the phlebotomist should:
draw below the sclerosed area
If a physician wishes to assess / screen a patient's platelet function, what test will provide the physician with the most reliable / sensible results?
bleeding time
If a skin puncture site is warmed prior to blood collection, the specimen is said to be:
If a specimen is hemolyzed, what color is the serum?
If an evacuated tube contains heparin and plasma separator gel, what color is the Hemogard TM closure?
light green
If blood has been spilled, what action should occur by the phlebotomist?
Keep the 1:10 bleach solution in contact with the contaminated area for a minimum of 20 minutes.
If patient's family is in the patient's room when the phlebotomist enters, the phlebotomist should:
ask the family to step outside the room
Most point-of-care for glucose testing procedures require:
skin puncture blood.
A phlebotomist collecting blood, suffered a needle puncture wound when a HIV-positive teenager became violent and hit him. The hospital must report this incident to the:
Normal blood used for laboratory testing has which of the following cellular elements?
erythrocytes, leukocytes, thrombocytes
Oxygenated blood is found in which blood vessels?
Patient identification should always include:
two identifiers
Phlebotomists are accountable for their work practices. What does this mean?
Phlebotomists should do what is right even when no one is looking.
Plasma is the fluid portion of the blood, when it filters into the tissues, decreasing the fluid portion of the blood in the blood vessels, this condition is called:
Positioning a patient's arm downward prior to venipuncture will help prevent:
Pressure applied to an arterial puncture site for at least 5 minutes following the procedure:
Prior to making a puncture during a blood collection procedure, antiseptic solutions should be applied to the site selected:
in concentric circles, beginning at the puncture site
Select the correct "order of draw" for tubes with color-coded closures if collecting for the following tests: blood cultures, PT and PTT, cell counts, and cholesterol.
yellow, light blue, red, lavender
Shaking an evacuated tube containing an additive too forcefully to mix the contents may cause what in a patient's specimen?
Skin punctures performed on a patients' fingers should be made:
perpendicular to the finger prints
Small, nonraised reddish-purple bruises/spots the size of a pinpoint on a patient's skin are called:
Specimens for home glucose monitoring are routinely collected by:
skin puncture
Swelling caused by an abnormal accumulation of fluid is called?
The body system that mechanically and chemically breaks down food into nutrients that can be absorbed and used by the body's cells is the:
digestive system
The body system that provides communication in the body by the means of electrical impulses and chemical substances is the:
nervous system
The cellular elements of the blood responsible for the transport of oxygen to the tissues are called:
The cellular elements of the blood that function in coagulation are called:
The cellular elements of the blood that function in fighting infection are called
The clear, colorless fluid that functions in protecting and nourishing the brain and spinal cord is called:
The closed system that is composed of a needle, a holder, and a tube containing a premeasured amount of vacuum is the:
evacuated blood collection system- ETS
The condition characterized by dizziness, weakness, pallor, clammy skin, sweaty and unconsciousness is called:
The condition where a healthy body through constant changes and functioning remains the same:
The directional term that means above, higher, or toward the head is:
The directional term that means farthest from the center of the body, point of attachment, or origin is:
The directional term that means higher or toward the head is:
The directional term that means lower or away from the head is:
The following Microtainers were to be collected following skin puncture: lavender, pink, red SST. In what order should the microtainers be collected?
lavender, pink, red SST
The following test were to be collected from a patient following skin puncture: platelet count, bilirubin, T3. What order should these tests be collected?
platelet count, bilirubin, T3
The four-chambered, muscular organ that pumps blood through the circulatory system is the:
The glandular system that secretes hormones directly into the bloodstream is the:
endocrine system
The internal space of a needle is the needle's:
The last step to occur when leaving the patient in an isolation room after blood collection is to:
wash hands.
The liberation of hemoglobin into the plasma following destruction of red blood cells is called:
The phlebotomist inspects the antecubital fossa of a patient and notes that a purple area surrounds the venipuncture site, accompanied by swelling, is called:
The presence of bacteria and their toxins in the bloodstream is called:
The process by which body cells use energy to make complex substances from simpler ones is called:
The process by which complex substances in food are broken down into simple substances while releasing energy is:
The process by which the body stops the leakage of blood from the vascular system is called:
The purpose of collecting blood for the GTT is to test the patient's:
insulin-releasing mechanism.
The rational for the order of draw for a syringes is to minimize:
clotting in anticoagulant tubes
The rational for the sequence of multiple specimen collection following venipuncture is to prevent:
The standard for measuring the diameter of the lumen of a needle is the needle:
The term for the sum of all chemical reactions necessary to sustain life is:
The term that means "without air" is:
To collect blood for the ionized calcium procedure, what blood collection tube is needed for proper test results?
green-topped tube
To examine by touch or feel is to:
To prepare a puncture site prior to routine venipuncture, the phlebotomist would use:
70% isopropyl alcohol
To prevent skin and mucous membrane exposure when contact with a patient's blood is anticipated, the following should be worn:
Under universal precautions, what PPE must the phlebotomist use for every blood collection procedure?
Using a needle that is too small to accommodate the force of the vacuum of an evacuated tube may cause what in a patient's specimen?
Veins that are hardened are:
What action may result in a QNS skin puncture specimen?
insufficient puncture
What additive in evacuated tubes binds calcium?
sodium citrate
What additive in evacuated tubes neutralizes thrombin?
sodium heparin
What additive in evacuated tubes promotes clotting?
What additive is found in an evacuated tube with a gray conventional stopper which is used for glycolytic inhibitor?
sodium fluoride
What additive is found in an evacuated tube with a green conventional stopper and used to neutralizes thrombin?
sodium heparin
What additive is found in an evacuated tube with a yellow conventional stopper and used to inhibits complement?
What additive is found in lavender stoppered evacuated tubes?
What are the needle lengths most commonly used for adult venipuncture?
1 and 1-1/2 inch needles
What are the three components of coagulation?
blood vessels, coagulation factors, platelets
What blood collection techniques requires sterile technique to prepare a venipuncture site?
blood culture
What blood constituents will increase as the oxygen content of the air decreases?
red blood cell count
What blood vessels characteristics is helpful to a phlebotomist, when palpating for a suitable site for the arterial puncture?
What blood vessels has the thickest vessel wall?
What body cavity are located in the front of the body?
What body cavity houses the brain is the:
cranial cavity
What body cavity houses the heart and lungs is the:
thoracic cavity
What body cavity houses the stomach, liver, pancreas, gallbladder, and spleen is the:
abdominal cavity
What body cavity is located in the back of the body?
What body cavity that houses the urinary bladder and the reproductive organs is the:
pelvic cavity
What collection procedure will yield a specimen composed of arterial, venous, and capillary blood?
skin puncture
What concern is important when collecting specimens for blood culture analysis?
using sterile technique to prepare the site
What condition, caused by a hematoma surrounding a venipuncture site, may lead to erroneous results?
What constituents is present in higher concentrations in blood collected by skin puncture than in blood collected by venipuncture?
What conventional stopper colors corresponds to the evacuated tube suitable for blood culture specimen collection?
What could cause hemolysis of a specimen obtained by skin puncture?
residual alcohol left on the site, excessive squeezing of the puncture site to secure specimen
What criterion does a phlebotomist use when selecting needle gauge prior to venipuncture procedure?
the lumen size of the patient's vein
What equipment does the phlebotomist need for site preparation prior to skin puncture?
heel warmer, alcohol, sterile gauze
What 3 pieces of equipment are used for a routine venipuncture?
needle, evacuated tube, holder
What equipment would a phlebotomist carry on his or her tray for a skin puncture procedure?
lancet, Microtainer TM, gauze
What evacuated tube additive acts as a glycolytic inhibitor?
sodium fluoride
What evacuated tube additive preserves labile coagulation factors?
sodium citrate
What evacuated tube additive prevents platelets from clumping?
What evacuated tube additives inhibits complement?
What evacuated tube conventional stopper color indicates the tube contains silica particles to facilitate blood clotting?
red SST
What evacuated tube conventional stopper color should be used when collecting specimens for analysis that require both a patient's cells and serum?
What evacuated tube stopper is manufactured with the lowest verified levels of trace elements available?
royal blue
What heart structure contains deoxygenated blood?
right atrium
What heart structure contains oxygenated blood?
What heart structure is included in the pulmonary circuit?
pulmonary artery
What heart structures is a part of the systemic circuit?
What infection control equipment should the phlebotomist use when performing a skin puncture procedure?
sharps, bio-hazard bag, gown, gloves
What is a likely complication if a phlebotomist draws blood from the palm-side of the patient's wrist?
nerve damage
What is found in plasma, but not in serum?
What is NOT an acceptable phlebotomy practice, when it comes to needles?
recapping contaminated needles
What is the additive found in a red stoppered evacuated tube?
What is the best site to select for skin puncture on an infant's foot?
lateral portion of the planter surface of the heel
What is the best way to end all phlebotomy encounters?
By saying "thank you" to the patient.
What is the cause of sclerosed veins?
numerous venipuncture
What is the correct sequence of steps in the beginning of a routine venipuncture procedure?
apply tourniquet, palpate site, release tourniquet
What is the correct sequence of steps during a routine venipuncture procedure?
release vein, engage tube, release tourniquet
What is the correct sequence of the steps in a routine venipuncture procedure?
uncap the needle, anchor the vein, insert the needle
What is the first step in proper patient identification?
the patient is asked to state his or her name
What is the fluid portion of a blood specimen called after the specimen has been collected into an anticoagulant?
What is the maximum number of times an infant's heel may be punctured to collect blood specimen?
2 times
What is the most important step in patient identification?
comparing the medical record number on the requisition with the patient's wristband
What is the rationale for the order of draw for the collection of multiple specimens following skin puncture?
minimize platelet clumping
What laboratory profession has the greatest public relations responsibility for the laboratory?
What location is most appropriate for a skin puncture?
the middle finger
What medication will interfere with the bleeding time test results?
aspirin, salicylic acid
What method of blood collection is preferred for infants?
skin puncture
What needle gauges are used most often to perform routine venipuncture?
21 and 22
What needle has the largest interior diameter?
smallest number, 18
What needle has the smallest interior diameter
largest number, 23
What personnel has priority with the patient?
physician talking to a patient or a clergyman administering Communion
What portion of the capillary circulation is increased when a warmer is applied to a skin puncture site?
What response may some patients have at the sight of their blood being drawn?
What site do you select for skin puncture, using a patient's finger?
distal phalanx of the ring finger
What skin puncture specimen is most likely to be adversely affected by excessive squeezing of the site?
bilirubin test from a 12 hour old neonate
What step in the venipuncture procedure must the phlebotomist exercise extra care in performing when collecting blood by venipuncture from a hand vein?
anchoring the vein
What structure is located on inferior to the transverse plane?
What structure is located on the posterior side of the frontal plane?
spinal cord
What structures is located in the medial anterior aspect of the antecubital fossa?
brachial artery
What structures is located in the leg?
femoral artery
What test is most commonly performed on skin puncture samples?
What test may require an extra step in patient identification?
type and crossmatch
What test procedure cannot be performed on specimens collected by skin puncture?
blood cultures, ESR, APTT
What test requires a patient to fast prior to collection of the blood specimen?
glucose tolerance test
What test would be most affected by lack of proper patient preparation?
type and crossmatch
What time of day is best for blood collection among hospitalized patients?
early morning prior to breakfast
What two steps should a phlebotomist do immediately after a needle is withdrawn from a patient?
Hold gauze over the site and activate the needle safety device.
What type of urine specimen is needed to detect an infection?
clean catch midstream
What types of venipuncture system should be used if a patient has very small veins (pediatric or geriatric)?
winged infusion
What values are higher in newborns than in adults?
red cell count
Which of the following types of health care-acquired infections are most prevalent?
urinary tract infections
Which vessels carry blood that is highest in oxygen?
Which vessels carry blood that is lowest in oxygen?
While performing a venipuncture with a syringe, a phlebotmist notices blood frothing between the hub of the needle and the syringe. As a result, the specimen may be:
Why is it important to acquire a fasting specimen for venipuncture?
most reference ranges are based on fasting specimens
Why is skin puncture preferred over venipuncture for infants for the collection of blood specimens?
prevents anemia
Why is the "order of draw" important in phlebotomy procedures?
to minimize additive carryover
Why is the fifth finger of a patient's hand routinely eliminated as a potential site for skin puncture?
the tissue is thinner than other fingers
Why is the index finger of a patient's hand routinely eliminated as a potential site for skin puncture?
it has an increased number of nerve endings
The type and use of PPE is overseen by:
If a physician orders laboratory tests for dx, and the patient comes to the lab with a rolled up sleeve, he is giving:
informed consent
The legal concept that refers to the voluntary permission by a patient to allow touching, examination, and/or treatment by a health care provider is:
informed consent
The use of electronic transfer of patient information is now regulated by federal Health Insurance Portability and Accountability Act
A phlebotomist provides CPR at an accident scene based on:
implied consent
Phlebo means
The zone of comfort refers to:
personal space
Standard of Care is set by:
What molecule transports oxygen and carbon dioxide in the blood?
Which body system is composed of neurons, brain, and spinal cord?
nervous system
Gall bladder and appendix is part of what body system?
digestive system
These are ductless glands that release their secretions (hormones) directly into the blood steam.
endocrine glands
It provides rapid transport of water, nutrients, electrolytes, hormones, enzymes, antibodies, cells, and gases to all cells of the body.
cardiovascular system
Which federal agency requires the use of PPE?
Health care institutions need to report accidental bloodborne exposure to:
Provides barrier protection when handling biohazard substances
Voluntary permission by a patient for health care is:
informed consent
Moral standards of behavior
What is measured by JCAHO?
Standard of Care
Federal regulation to ensure quality of laboratory testing is:
Where gas exchange in the lungs take place?
Outer layer of the skin is the:
Blood cells are produced by:
bone marrow
Serum is blood that:
does not contain anticoagulants
The fluid portion of plasma's color is:
Veins are what type of vessels?
Afferent vessels that carry blood toward the heart
Plasma is made up of 90% of:
What is urea and uric acid?
metabolic waste products
What is Systole?
contraction of the heart
What is Diastole?
relaxation of the heart
The atrioventricular valves function to prevent:
backward blood flow through the heart- Reflux
A differential count refers to:
enumeration of specific types of WBC's
How fast does the average adult heart beat?
60 to 80 times
Which arteries provide blood to the heart?
When blood exits the right ventricle, it travels to:
What is the process of dissolution of blood clot and regeneration of the blood vessel?
An anticoagulant used to prevent blood from clotting:
Hardening of the arteries due to build up of cholesterol and/or calcium deposits:
A blood test that separates blood cells from plasma by centrifuging the blood sample:
What is the layer of erythrocytes and platelets in an anti-coagulated specimen?
buffy coat
What is the longest vein in the body?
Great saphenous vein
An individual with type O blood is what type of donor:
Universal Donor
Maintenance and retention of circulating blood in the vascular system:
What is the fluid portion of unclotted blood?
A health-care-acquired infections occurs when a/the:
chain of infection is complete
What is Hepatitis B virus and human immuno deficiency virus?
bloodborne pathogens
What are pathogenic microorganisms that are present in human blood called?
bloodborne pathogens
What federal agency is responsible for monitoring morbidity and mortality through out the country?
Center for Disease Control and Prevention
What means sterile, free from all living microorganisms?
What is usually to corrosive to use on human skin?
What does BBP stand for?
bloodborne pathogens
What is the abbreviation for Occupational Safety and Health Administration?
What is the abbreviation for Joint Commission Accreditation of Healthcare Organizations?
What is hand-washing and following standard precautions?
aseptic technique
What are inanimate objects that can cause an infection?
fomites (anything you can touch)
Who oversees the federal investigation of communicable diseases?
What does pathogen mean?
causing disease
What are health care-acquired infections called?
What type of protective isolation is used for patients with combined immunodeficiencies?
reverse isolation
What reduces the risk of transmission of herpes simplex?
contact precautions
Which is a common antiseptic? Ethyl alcohol or formaldehyde:
ethyl alcohol
What chemical compound is used to remove or kill pathogenic microorganisms?
What precautions are used for patients known to have serious illnesses transmitted by large particle droplets?
airborne pathogens
What is a disinfectant used in health care?
What is a common antiseptic?
ethyl alcohol
Which of the following organizations regulates the disposal of waste?
This type of fire extinguisher include foam, dry chemicals and CO2
What is the abbreviation for the Environmental Protection Agency?
What fire extinguisher is used for multipurpose and combat all types of fires?
What is done to a shock victim's legs when giving first aid?
What colors are required for labeling sharps containers?
red or orange
When you elevate a limb that is bleeding it will?
decrease bleeding
What is added to acid in a chemical safety measure?
What is used at 95% stength to cleanse the specimen collection area?
ethyl alcohol
Who originated the Right to Know law?
Quality control records for reagents and supplies include information about:
expiration dates and stability information
Why is rapid transportation of blood specimens important?
Glycolytic action in the blood does not occur
What specimen needs to be warmed to the body temperature?
cold agglutinin titers
When mailing specimens, all outer packaging should be marked as:
infectious substances
How are errors corrected?
Never erase them, rather cross them out and corrected according to policy
What is a light sensitive blood constituent that must be protect from light but not chilled:
What is oxygen and carbon dioxide?
blood gases
When lab results indicate a life-threatening state:
critical values
What is the break down of glucose?
glycolytic action
Chromosome analysis requires whole blood collected in what color of tube top:
SPS additive in a yellow tube top is:
Sodium polyanetholesulfonate
Which additives prevent coagulation of blood by removing calcium through the formation of insoluble calcium salts?
EDTA, sodium citrate, potassium oxalate
Additives that remove calcium to prevent coagulation:
EDTA, sodium citrate, potassium oxalate
Lead, nickle blood levels are collected in what tube stopper color:
Blood collection vaccum tubes may contain silicon to:
decrease the possibility of hemolysis,
What requires plasma to be collected in a purple-topped vacuum tube and transported in an ice-water slurry?
renin activity
Why are needles color coded?
To indicate guage size
What is used frequently as the anticoagulant for blood studies and what color is the tube top?
sodium citrate, blue top
What has the highest percentage of needle stick injuries?
butterfly needles
What color tube top contains sodium fluoride?
Disposable narrow-bore pipettes used for pediatric blood collections and/or micro hemacrit measures:
capillary tubes
Indicates the diameter of the needle
gauage number
What anticoagulant prevents blood clotting by inactivating thrombin and thromboplasts?
What is ACD?
What is the blood-clotting chemical in the body?
What inhibits the growth of microorganisms?
How long should alcohol be allowed to dry for before a venipuncture procedure?
30-60 seconds
What is the preferred position to have the patient in when drawing blood?
supine/reclining position/lying down
What is TDM?
therapeutic drug monitoring collection
What is HBV?
Hepatitis B virus
What is HCV?
Hepatitis C virus
When an increased concentration of large molecules of blood such as cells and proteins, this is called:
What is HIV?
Human immunodeficiency virus
When alcohol is not dried before a skin puncture it causes:
prevents a round drop from forming, causes hemolysis of blood cells and causes erroneous results for some lab tests
Point of Care Testing often uses what type of samples?
Capillary samples
Which way is preferable for a finger puncture/cut to be done on the fingerprint :
across the ridges
What is the skin puncture depth appropriate for an adult?
2-3 mm
Skin puncture blood that contains a mixture of blood from venules, arterioles, and tissue fluid:
Capillary blood
Early morning, 12 hrs after eating last meal is called what state:
Basal State
Length of Glucose fasting is:
8-12 hrs
Testorone and Cortisol hormone and the blood concentration is not affected by:
Variations in the body's functions that occur during daylight hours or every 24 hrs:
diurnal variations
Last stage in the hemostatic process, where a blood clot begins to dissolve or break up:
The optimal depth of a finger stick in a child is:
2.0 mm
What vein in the hand is used for infant venipuncture?
dorsal vein at 15 degrees
What is less stressful for an infant and health care provider other than a skin puncture?
dorsal vein venipuncture
Specific guidelines for performing a heel stick includes the following:
Allow the foot to hang lower than the torso
When drawing an infants blood you must:
document the amount of blood drawn
Microcapillary sampling by skin puncture includes:
puncture-resistant sharps container
Polycythemia is treated by
therapeutic phlebotomy
You must avoid what during a glucose test:
chewing gum
Postprandial is
after eating
Represented by 95 % of test values
standard deviation