Low and high controls are required for a glucose meter. These are run: - Answer- Exactly the same as patient samples are run.
Blood culture collection
... [Show More] sites are prepared by swabbing the venipunture sire with iodine, which is left on for: - Answer- 20 seconds
A tourniquet is applied to the arm above a venipuncture site to: - Answer- Slow the flow of venous blood to the heart
Arterial walls have thick layers of (_) to withstand increased blood pressure during the contraction phase of the heart and to maintain blood flow during its resting phase: - Answer- Muscles
Which of the following describes the appropriate response by the phlebotomist: - Answer- A patient on withhold for 8 hours reports drinking water. A blood glucose level was collected and no report was added to the requisition.
Peak and trough specimens are collected for therapeutic drug monitoring. The trough specimen is typically collected: - Answer- 30 minutes before the dose.
A specimen for a blood ammonia test is to be preserved from the time of collection until it is tested in the lab. The best course of actions is to keep the tube: - Answer- In a cup of ice water.
The performance and speed of the centerfuges should be checked: - Answer- Every 3 months
The preferred depth of the incision for a skin puncture of a premature infant is: - Answer- .85mm
The transportation of body fluid specimens by pneumatic tube system: - Answer- Is not recommended
A phlebotomist must collect form a patient in isolation with contact precautions. The appropriate personal protective equipment (PPE) i:s: - Answer- Gloves and gown
All the following terms indicate the patient has had nothing to eat, except: - Answer- postprandial.
The most effective means of prevention the spread of infectious disease is: - Answer- to observe proper hand washing techniques
A phlebotomist performs a venipuncture with out disinfecting the venipuncture site and leaving the tourniquet on longer than indicated. This would be considered: - Answer- Negligence.
When blood leaves the right ventricle, it enters the: - Answer- Right and left pulmonary arteries.
What percentage of water in a human body is found within the cells: - Answer- 60%
When preparing a site for venipuncture, which of the following is not mandated: - Answer- always start with using iodine
Which is true of veins: - Answer- All veins contain deoxygenated blood
Which of the following is not true of arteries: - Answer- Arteries have a pulse
If a phlebotomist notices a patient eating during a glucose tolerance test, the correct procedure would be to: - Answer- Contact the physician to determine if the test should be continued.
When performing capillary puncture on neonates, the following order of the collection is mandated: - Answer- Hematology, Chemistry, Blood Bank
Which of the following must be kept at 37 after collection: - Answer- Cold agglutins and cyrofibrogen
A blood specimen for the following test need not be transported in a mix of ice and water: - Answer- Amylase
A hemolyzed blood sample would have the greatest impact and cause elevated levels of the following: - Answer- Potassium, iron, magnesium
When collecting blood from a patient in reverse isolation which of the following is true: - Answer- Articles removed from the room need not to be double bagged
Which of the following is mandated in preparation of a patient for ta glucose tolerance test: - Answer- Not fasting for more than 14 hours prior to the test
When instructing a patient on the proper procedure to use for collection of a midstream urine specimen, which of the following is not mandated: - Answer- The sample should always be the second voided of the day in order to reduce contamination.
Which of the following preservatives used in a 24 hour urine collection will interfere least with the dipstick analysis and other urine chemical tests: - Answer- Boric acid
A blood sample tested for the liver enzymes showed an elevation of all the liver enzymes except lactate dehydrogenase (LDH). This lowered result may have been a result of: - Answer- Refrigeration of the blood sample
If the phlebotomist were unsuccessful upon the first attempt to collect a blood specimen, the next step would be to: - Answer- Ask the patient if a second attempt is okay.
What is the appropriate procedure for tourniquet use: - Answer- Must be wiped down with 70 percent alcohol between patients
The action of sodium polyanethol sulfate (SPS) as an additive to blood culture containers includes: - Answer- Complement inhibition
The best marker to insure the completeness of a 24 hour urine collection would be: - Answer- 4-amiobenzoic level
Which of the following antiglycolytic agent is preferred because it does not interfere with urease and allows the same blood sample to be tested for urea nitrogen (BUN) as well as glucose: - Answer- Sodium iodoacetate
From the standpoint of patient safety, which is the most dangerous practice: - Answer- Pre labeling the vacutainer tubes before collection.
Which of the following additives is a true anticoagulant: - Answer- Sodium citrate
When blood leaves the right ventricle, it enters the: - Answer- Right and left pulmonary arteries
A blood sample collected in a tube with out anticoagulant would contain: - Answer- Serum
Concerning the collection of a timed specimen, which of the following is true: - Answer- If a timed glucose is collected too early; the result could be falsely elevated.
When collecting blood for trace metals analysis, which of the following must be observed: - Answer- Avoid the use of an anticoagulant that binds metals.
Instruction for a 24 hour urine collections would indicate the starting time of collection and ending time. This means that: - Answer- The patient voids into the toilet and starts the timing with an empty bladder collecting all subsequent samples.
Which of the following anticoagulants does not bind calcium: - Answer- Heparin
Which of the following is part of the standard protocol when doing a bleeding time test: - Answer- A butterfly type bandage is used
When collecting blood using a syringe samples should be placed into evacuated tubes in the following order: - Answer- Blue, Lavender, Red
The outer layer of the heart is the: - Answer- Epicardium
A platelet count of 650,000 per cubic millimeter is termed: - Answer- Thrombocytosis
Veins carry: - Answer- Deoxygenated blood to the heart
When collecting blood from an artery for arterial blood gases (ABG's) it is not necessary to pull the plunger of the syringe because: - Answer- Arterial blood is under pressure from the contraction of the ventricles.
A plasma protein that is not present in serum is: - Answer- Fibrinogen
If a patient indicated that he/she is not fasting, the phlebotomist should: - Answer- Ask the patients nurse of the sample should be collected at this time.
When preforming a skin puncture, which specimen should be collected last: - Answer- Heparin micro collection tubes
During the venipuncture procedure, place the phlebotomy tray: - Answer- Within easy reach on a bedside table
Blood specimens collected for prothrombin time testing must be analyzed with in: - Answer- 24 hours of collection
When collection blood for plasma renin activity testing, the blood must be transported: - Answer- In ice water
The right ventricle of the heart pumps blood into the : - Answer- Lungs
The appropriate course of action for a STAT order: - Answer- To send the tubes to the laboratory immediately upon collection
When testing for a prothrombin time (PT) with a point of care (POC) instrument, the on board controls (OBC) will: - Answer- Be accepted by a bar code range.
All testing on cerebral spinal fluid (CSF) samples should be preformed with in 1 hour of collection because cytolysis is dependent on: - Answer- Temperature
The principal component of plasma is: - Answer- Water
A patient seeks care at the emergency room with a temperature of 101 degrees Fahrenheit. A thorough history and physical exam revealed no cause for the patients increase temperature. Blood culture specimens should be collected: - Answer- 2 blood cultures at intervals of 45-60 minutes, 2 more at 24-48 hours.
A fasting urine specimen is: - Answer- The second voided urine specimen of the day
Removal of more than 10 percent of an infants blood volume at one time may cause: - Answer- Cardiac arrest
A specimen for a cold agglutinin analysis was collected and placed in a 37 degree C incubator. The specimen is unacceptable because: - Answer- The sample should have been pre warmed for 30 minutes.
when performing a skin puncture, which specimen should be collected last: - Answer- Heparin microcolletion tubes
Leukocytes are responsible for: - Answer- Defending the body against bacteria and viruses
A phlebotomist used a vacutainer system to collect blood specimens for the following laboratory tests: complete blood count (CBC), prothrombin time (PT) and activated partial thromblastin time (APTT). The OSHA blood borne pathogen standard states that: - Answer- Both the needle and the holder must be discarded together.
The left ventricle pumps into the hear itself and into the circulation via the: - Answer- Aertcartry
When obtaing a routine blood sample and a vein is not evident, a blood pressure cuff may be used at the following level: - Answer- 60-80
A patient in the intensive care unit had indwelling lines for fluid and medication. A chemist panel was ordered. The correct procedure for colleting blood from an indwelling line is: - Answer- To discard the first 5 mL
A patient scheduled for a 2- hour glucose tolerance test drinks the glucose beverage and complains feeling nauseated. The patient vomits 75 minutes into the test. The phlebotomist should: - Answer- Stop the test, it is complete.
A patient needs to submit a urine test for a routine drug screen but is unable to provide a urine sample. The patient is instructed to drink up to 24 fluid ounces of water in 2 hours. Another sample is obtained but it is insufficient in quantity. The laboratory should: - Answer- Discard the urine sample ad cancel the test
To best preserve the urinary sediment in a 24 hour urine specimen, the preservatives of choice are: - Answer- Boric acid and thymol
For a 24 hour urine specimen to be handled appropriately, it should include: - Answer- The total volume collected.
When collecting blood from adolescents the phlebotomist should: - Answer- Answer all questions the adolescent might ask.
A patient comes to the out patient phlebotomy area to have blood collected. The patient is on AZT, and the test ordered is a CD4 The phlebotomist assumes the patient is HIV infected and should: - Answer- Practice standard procedures routinely used for collection of blood
The best vein for veinpunture is the: - Answer- Median cubical
The trough value of a drug is collected: - Answer- Prior to the patient receiving the drug
The loosened skin seen on geriatric patients is due to: - Answer- The loss of supportive connective tissue
Blood cultures containing ARD/resin would be collected: - Answer- On a patient receiving antibiotics
If a patient has fragile veins that appear likely to collapse during phlebotomy, the best system to use for blood collections is a: - Answer- Syringe
A patient who is recumbent is: - Answer- Suspine
When performing a venipuncture on a 65 year old patient with good veins, the phlebotomist should choose which gauge needle for the veinipunture: - Answer- 21
If a patient is receiving tissue plasminogen activator (TPA), blood may be collected: - Answer- Only with a physician's approval
Which of the following statements best describes a vein: - Answer- It contains structures called valves
Which of the following conditions would create an adverse effect on the quality of a finger stick blood specimen: - Answer- Swollen fingers
When collection a blood sample form an elderly, frail patient sometimes the best method is to collect from the back of the hand. The best collection device to use in this situation is: - Answer- A syringe
A method that is inaccurate but precise would be represented on a bull's eye target as: - Answer- Tight scatter off the bull's eye.
A blood specimen is requested from a patient suspected of having septicemic. Which of the following substances should the phlebotomist use to clean the venipuncture site: - Answer- Alcohol and Iodine
The surgery unit collects a blood specimen for routine chemistry testing and immediately places the specimen on ice. A phlebotomist who just happens to be in the unit is asked to take the sample to the lab. The phlebotomist accepts the sample and takes it to the lab before looking at the corresponding request. The phlebotomist should: - Answer- Request a repeat sample submitted at room temperature.
A finger stick is preformed and blood flow is minimal.To increase blood flow from the site the phlebotomist should: - Answer- Milk the finger.
A phlebotomist collected a blood sample in the appropriate tube for an actual coagulation time (ACT) but did not mix the tube after collecting the sample. If the sample were used for bedside testing for ACT, the results obtained will likely be: - Answer- Increased
Which of the following is the best option to collect the sample from the hand of a patient with a veins that that are difficult to palpate: - Answer- Syringe
Capillary blood is acceptable for hemoglobin testing because it contains: - Answer- Oxygen carrying red blood cells
A blood specimen for a CBC is collected in an EDTA tube and is mistakenly left on the accessioning counter overnight. White of the following parameters, if any, would be affected by the processing delay of the specimen: - Answer- White blood cell differential
Which of the following is used for a bleeding test time: - Answer- Spyhgmomanometer, filter paper, sample, stopwatch
Which of the following should be collected in an anticoagulant tube, placed in ice water, and brought to the lab as soon as possible: - Answer- Lactate levels
Four patients are waiting to have blood collecte [Show Less]