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Phlebotomy – Chapter 11

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Forensic toxicology is concerned with
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legal consequences of toxin exposure
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TB test administration involves
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injecting the antigen just under the skin
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Which one of the following is an unlikely NIDA patient collection requirement for urine drug screens?
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Documentation is carefully maintained from proctor to courier
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The correct order in collecting a blood culture is
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select equipment, perform friction scrub, cleanse bottle tops, perform venipuncture
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False=-positive results of lactose tolerance tests have been found in all of the following conditions other than
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male multiple myeloma
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If an assumed parent in a paternity case cannot be excluded by ABO grouping, which of the following additional tests may be required
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Buccal sample for DNA
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Which one of the following should be deleted from the list of those allowed to order paternity testing
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Child who is a minor
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What is the recommended disinfectant for blood culture sites in infants 2 months and older
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Chlorhexidine gluconate
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Which one of the following statements about autologous donations is untrue
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Unused autologous units may be used by other patients
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The CPD additive in a donor unit of blood is least likely to
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control bacterial contamination
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A transfusion of incompatible blood is often fatal because it
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causes lysis, or rupturing, of RBCs, within the vascular system
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In using a cell-salvaging procedure during surgery, what analyte must be evaluated before the patient’s blood can be reinfused
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Free hemoglobulin
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Which one of the donor unit collection principles is untrue
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Additives EDTA and sodium fluoride are contained in the collection bag
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Which of the following are coagulation tests that can be monitored using a POC instrument
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INR and PTT
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Some individuals lack the necessary mucosal enzyme to convert which of the following sugars so that it can be digested
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Lactose
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Blood gases can be monitored using hte
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AXOVimeter
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This point of care testing instrument has recently been recognized as an accurate predictor of developing diabetic complications
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DCA Vantage
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Potassium is least likely to play a major role in
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transporting Hgb
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All POC glucose analyzers approved for hospital use have which of the following in common
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All of the above
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ARD or FAN blood culture bottles
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remove any antibiotics that are int he blood
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Septicemia is
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microorganisms found in the blood
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The siemens Patient Identification Check-Blood Administration system is a
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portable bar-code scanning system for positive patient ID
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Eligibility requirements for donating blood include
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age 17 to 66 years, 110 pounds or more
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Identify the condition in which a unit of blood is withdrawn from a patient as a treatment
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Hemochromatosis
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Which specimen required especially strict identification and labeling procedures
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Cross-match
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Which of the following should be removed from a list drugs of abuse
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Phenobarbital
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Donor units of blood are typically collected using needles that are
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16 to 18 gauge
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A typical unit of donated blood contains approximately
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450 mL
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Which of the following tests is collected from patients with FUO to rule out septicemia
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Blood cultures times two
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Of all of the following, which tubes should be eliminated for use in collecting specimens for a blood bank
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Large gel-barrier tube
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Which of the following tests is collected using special skin decontamination procedures
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Set of blood cultures
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Which type of test is performed to determine the probability that a specific individual was the father of a particular child
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Paternity
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Why would blood cultures be collected with an antimicrobial adsorbing resin
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The patient is taking a broad-spectrum antibiotic
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Which specimen tubes must contain a 9-to-1 ratio of blood to anticoagulant to be accepted for testing
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Coagulation
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What type of additive is best for collecting an ethanol specimen
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Sodium fluoride
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Which BC is inoculated first when the specimen has been collected by needle and syringe
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Anaerobic vial
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The most critical aspect of blood culture collection is
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skin antisepsis
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A site for blood culture collection can typically be cleaned with which of the following
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Chlorhexidene gluconate
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Which of the following additives is sometimes used to collect blood culture specimens
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SPS
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Which type of specimen may require collection of a discard tube before the test specimen is collected
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Coagulation
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This is an abbreviation for a test that evaluates platelet plug formation in the capillaries
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BT
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Which test is used as a screening tst for glucose metabolism problems
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2-hour PP
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Which of the following activities has no effect on glucose tolerance test (GTT) results
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Lying down during the test
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When does the timing of specimen collection begin during a GTT
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When the patient has finished the glucose beverage
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A phlebotomist arrives to collect a 2-hour postprandial glucose specimen on a inpatient and discovers that 2 hours have not elapsed since the patient’s last meal. What should the phlebotomist do
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Ask the patient’s nurse to verify the correct collection time
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A patient undergoing a GTT vomits within 30 minutes of drinking the glucose beverage. What action should the phlebotomist take
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Notify the nurse of physician immediately to see if the test should be rescheduled
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Increased blood glucose is called
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hyperglycemia
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When does a blood glucose level in normal individuals typically peak after glucose ingestion
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In / hour to 1 hour
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Which of the following must remain consistent throughout an oral glucose tolerance test (OGTT)
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Blood specimen source
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Patient preparation before a GTT involves
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eating meals with a measured amount of carbohydrate days prior
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Which of the following can be used to clean a site before a blood alcohol specimen is collected
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Zephiran chloride
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Which of the following specimens may require chain-of-custody documentation when it is collected
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Drug screen
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The purpose of TDM is to
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determine and maintian a beneficial drug dosage
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Which of the following tests would not be subject to therapeutic drug monitoring
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Phenylalanine
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A peak drug level has been ordered for 0900 hours. You draw the specimen minutes late because of unavoidable circumstances. What additional action does this necessitate
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Record the actual time of specimen collection
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A trough drug level is collected
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immediately before the next scheduled drug dose is given
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Which test requires the collection of multiple specimens
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GTT
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Timing of collection is most critical for drugs with short half-lives, such as
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gentamicin
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A bleeding time (BT) test assesses the functioning of which of the following cellular elements
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Thrombocytes
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The most common reason for glucose monitoring through POCT is to
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monitor glucose levels for diabetic care
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Which one of the following tests could be collected using a tube other than a trace element-free tube
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Sodium
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The definition of toxicology is
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the scientific study of poisons
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Which test typically has the shortest TAT if performed by POCT
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BUN
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Which of the following is not a POCT analyzer
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BactALERT
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To prevent intoducing a contaminating substance into a trace-element collection tube, it is suggested that you
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draw by itself using a syringe or evacuated tube system
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Which of the following is one of the most common bedside of POCT tests
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Glucose
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Which of the following tests is used ti monitor heparin therapy
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ACT
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Which of the following pieces of equipment can be eliminated from a list needed for a bleeding-time test
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Vinyl tourniquet
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At what intervals is the blood blotted during a bleeding-time test
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30 seconds
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In performing the bleeding-time test, a sphygmomanometer is inflated to
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40 mm Hg
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Of the following, which one is least likely to prolong a bleeding-time test
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Allowing the pressure on a BP cuff to drop
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This test can determine if an individual has developed antibodies to a particular antigen
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Skin test
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Ionized calcium plays a critical role in all of the following but one
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Glycosylation
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Below-normal blood pH is referred to as
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blood acidosis
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Which of the following is a protein that is specific to heart muscle
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Tnt
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B-type natriuretic peptide is a cardiac
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hormone
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This is used to evaluate long-term effectiveness of diabetes therapy
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Hemoglobin A1c
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This test is also referred to as packed cell volume
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HCT
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This test detects occult blood
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Guaiac
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Which of the following is a skin test for tuberculosis exposure
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PPD
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The hormone detected in urine pregnancy testing is
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hCG
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Which point-of-care blood analyzer uses a microcuvette instead of a test strip
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HemoCue HB201+
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An uncorrected imbalance of this analyte in a patient can quickly lead to death
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Potassium
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The POC instrument Verify Now does platelet testing to
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determine response to aspirin therapy
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How much diluted antigen is injected when a PPD test is performed
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0.1 mL
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Erythema means
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redness
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In reading a patient’s tuberculin (TB) test, there is an area of induration and erythema that measures 7 mm in diameter. The result of the test is
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doubtful
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Point-of-care detection of group A strep normally requires a
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throat swab
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Which one of the following analytes is undetectable in urine when a urine dipstick is used
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Thrombin
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Which point-of-care test helps a physician detect low-grade inflammation even in asymptomatic individuals
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CRP
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Which of the following should be removed from a list of drugs of abuse?
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Phenobarbital