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100
The most common cause of health-care acquired infection is?
improper hand hygiene
100
Blood collected by dermal puncture most closely resembles?
Arterial blood
100
A lactic acid sample should be delivered to the laboratory in what?
ice water slurry
100
Samples for lead analysis are collected in?
tan stopper tubes
100
Blood vessels with walls that are only on cell thick are?
capillaries
200
A patient with tuberculosis would be placed in?
airborne isolation
200
Blood alcohol is collected in what stopper tube?
gray
200
Failure to insert the needle far enough into the vein can cause?
a hematoma
200
The first stage in the coagulation process involves
Platelets
300
The best evacuated tube to collect a stat serum chemistry test is?
an orange stopper tube
300
The leukocyte that forms the basis of the immune system is the?
lymphocyte
300
What specimen should be protected from light?
Amniotic fluid
400
Urine pregnancy tests are preformed on
first-morning specimens
400
The second thing to do when a fire is discovered is to?
activate the fire alarm
400
Centrifuging uncapped tubes will produce?
aerosols
400
The majority or errors associated with the collection of blood cultures are caused by?
improper site cleansing
400
The maximum recommended time between collection and centrifuging of a gel barrier tube is?
2 hours
500
Chain of custody refers to the?
Documentation of sample handling
500
Hemoconcentration occurs when the
a tourniquet remains on more than 1 minute
500
Blood constituent that exhibits diurnal variation is affected by?
the time of day
500
Thick and thin blood smears are performed on patients to diagnose?
malaria
500
Which of the following tests will be decreased if a gel barrier tube remains uncentrifuged for a long period of time?
Glucose