Phlebotomy – Chapter 11 – Flashcards
Unlock all answers in this set
Unlock answersquestion
Forensic toxicology is concerned with
answer
legal consequences of toxin exposure
question
TB test administration involves
answer
injecting the antigen just under the skin
question
Which one of the following is an unlikely NIDA patient collection requirement for urine drug screens?
answer
Documentation is carefully maintained from proctor to courier
question
The correct order in collecting a blood culture is
answer
select equipment, perform friction scrub, cleanse bottle tops, perform venipuncture
question
False=-positive results of lactose tolerance tests have been found in all of the following conditions other than
answer
male multiple myeloma
question
If an assumed parent in a paternity case cannot be excluded by ABO grouping, which of the following additional tests may be required
answer
Buccal sample for DNA
question
Which one of the following should be deleted from the list of those allowed to order paternity testing
answer
Child who is a minor
question
What is the recommended disinfectant for blood culture sites in infants 2 months and older
answer
Chlorhexidine gluconate
question
Which one of the following statements about autologous donations is untrue
answer
Unused autologous units may be used by other patients
question
The CPD additive in a donor unit of blood is least likely to
answer
control bacterial contamination
question
A transfusion of incompatible blood is often fatal because it
answer
causes lysis, or rupturing, of RBCs, within the vascular system
question
In using a cell-salvaging procedure during surgery, what analyte must be evaluated before the patient's blood can be reinfused
answer
Free hemoglobulin
question
Which one of the donor unit collection principles is untrue
answer
Additives EDTA and sodium fluoride are contained in the collection bag
question
Which of the following are coagulation tests that can be monitored using a POC instrument
answer
INR and PTT
question
Some individuals lack the necessary mucosal enzyme to convert which of the following sugars so that it can be digested
answer
Lactose
question
Blood gases can be monitored using hte
answer
AXOVimeter
question
This point of care testing instrument has recently been recognized as an accurate predictor of developing diabetic complications
answer
DCA Vantage
question
Potassium is least likely to play a major role in
answer
transporting Hgb
question
All POC glucose analyzers approved for hospital use have which of the following in common
answer
All of the above
question
ARD or FAN blood culture bottles
answer
remove any antibiotics that are int he blood
question
Septicemia is
answer
microorganisms found in the blood
question
The siemens Patient Identification Check-Blood Administration system is a
answer
portable bar-code scanning system for positive patient ID
question
Eligibility requirements for donating blood include
answer
age 17 to 66 years, 110 pounds or more
question
Identify the condition in which a unit of blood is withdrawn from a patient as a treatment
answer
Hemochromatosis
question
Which specimen required especially strict identification and labeling procedures
answer
Cross-match
question
Which of the following should be removed from a list drugs of abuse
answer
Phenobarbital
question
Donor units of blood are typically collected using needles that are
answer
16 to 18 gauge
question
A typical unit of donated blood contains approximately
answer
450 mL
question
Which of the following tests is collected from patients with FUO to rule out septicemia
answer
Blood cultures times two
question
Of all of the following, which tubes should be eliminated for use in collecting specimens for a blood bank
answer
Large gel-barrier tube
question
Which of the following tests is collected using special skin decontamination procedures
answer
Set of blood cultures
question
Which type of test is performed to determine the probability that a specific individual was the father of a particular child
answer
Paternity
question
Why would blood cultures be collected with an antimicrobial adsorbing resin
answer
The patient is taking a broad-spectrum antibiotic
question
Which specimen tubes must contain a 9-to-1 ratio of blood to anticoagulant to be accepted for testing
answer
Coagulation
question
What type of additive is best for collecting an ethanol specimen
answer
Sodium fluoride
question
Which BC is inoculated first when the specimen has been collected by needle and syringe
answer
Anaerobic vial
question
The most critical aspect of blood culture collection is
answer
skin antisepsis
question
A site for blood culture collection can typically be cleaned with which of the following
answer
Chlorhexidene gluconate
question
Which of the following additives is sometimes used to collect blood culture specimens
answer
SPS
question
Which type of specimen may require collection of a discard tube before the test specimen is collected
answer
Coagulation
question
This is an abbreviation for a test that evaluates platelet plug formation in the capillaries
answer
BT
question
Which test is used as a screening tst for glucose metabolism problems
answer
2-hour PP
question
Which of the following activities has no effect on glucose tolerance test (GTT) results
answer
Lying down during the test
question
When does the timing of specimen collection begin during a GTT
answer
When the patient has finished the glucose beverage
question
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
answer
Ask the patient's nurse to verify the correct collection time
question
A patient undergoing a GTT vomits within 30 minutes of drinking the glucose beverage. What action should the phlebotomist take
answer
Notify the nurse of physician immediately to see if the test should be rescheduled
question
Increased blood glucose is called
answer
hyperglycemia
question
When does a blood glucose level in normal individuals typically peak after glucose ingestion
answer
In / hour to 1 hour
question
Which of the following must remain consistent throughout an oral glucose tolerance test (OGTT)
answer
Blood specimen source
question
Patient preparation before a GTT involves
answer
eating meals with a measured amount of carbohydrate days prior
question
Which of the following can be used to clean a site before a blood alcohol specimen is collected
answer
Zephiran chloride
question
Which of the following specimens may require chain-of-custody documentation when it is collected
answer
Drug screen
question
The purpose of TDM is to
answer
determine and maintian a beneficial drug dosage
question
Which of the following tests would not be subject to therapeutic drug monitoring
answer
Phenylalanine
question
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
answer
Record the actual time of specimen collection
question
A trough drug level is collected
answer
immediately before the next scheduled drug dose is given
question
Which test requires the collection of multiple specimens
answer
GTT
question
Timing of collection is most critical for drugs with short half-lives, such as
answer
gentamicin
question
A bleeding time (BT) test assesses the functioning of which of the following cellular elements
answer
Thrombocytes
question
The most common reason for glucose monitoring through POCT is to
answer
monitor glucose levels for diabetic care
question
Which one of the following tests could be collected using a tube other than a trace element-free tube
answer
Sodium
question
The definition of toxicology is
answer
the scientific study of poisons
question
Which test typically has the shortest TAT if performed by POCT
answer
BUN
question
Which of the following is not a POCT analyzer
answer
BactALERT
question
To prevent intoducing a contaminating substance into a trace-element collection tube, it is suggested that you
answer
draw by itself using a syringe or evacuated tube system
question
Which of the following is one of the most common bedside of POCT tests
answer
Glucose
question
Which of the following tests is used ti monitor heparin therapy
answer
ACT
question
Which of the following pieces of equipment can be eliminated from a list needed for a bleeding-time test
answer
Vinyl tourniquet
question
At what intervals is the blood blotted during a bleeding-time test
answer
30 seconds
question
In performing the bleeding-time test, a sphygmomanometer is inflated to
answer
40 mm Hg
question
Of the following, which one is least likely to prolong a bleeding-time test
answer
Allowing the pressure on a BP cuff to drop
question
This test can determine if an individual has developed antibodies to a particular antigen
answer
Skin test
question
Ionized calcium plays a critical role in all of the following but one
answer
Glycosylation
question
Below-normal blood pH is referred to as
answer
blood acidosis
question
Which of the following is a protein that is specific to heart muscle
answer
Tnt
question
B-type natriuretic peptide is a cardiac
answer
hormone
question
This is used to evaluate long-term effectiveness of diabetes therapy
answer
Hemoglobin A1c
question
This test is also referred to as packed cell volume
answer
HCT
question
This test detects occult blood
answer
Guaiac
question
Which of the following is a skin test for tuberculosis exposure
answer
PPD
question
The hormone detected in urine pregnancy testing is
answer
hCG
question
Which point-of-care blood analyzer uses a microcuvette instead of a test strip
answer
HemoCue HB201+
question
An uncorrected imbalance of this analyte in a patient can quickly lead to death
answer
Potassium
question
The POC instrument Verify Now does platelet testing to
answer
determine response to aspirin therapy
question
How much diluted antigen is injected when a PPD test is performed
answer
0.1 mL
question
Erythema means
answer
redness
question
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
answer
doubtful
question
Point-of-care detection of group A strep normally requires a
answer
throat swab
question
Which one of the following analytes is undetectable in urine when a urine dipstick is used
answer
Thrombin
question
Which point-of-care test helps a physician detect low-grade inflammation even in asymptomatic individuals
answer
CRP
question
Which of the following should be removed from a list of drugs of abuse?
answer
Phenobarbital