The Yellow tube top contains
sodium polyanetholesulfonate ( SPS ) or acid citrate dextrose ( ACD )
Coagulation studies include
prothrombin time, partial thromboplastin time, platelet function
What is the purpose of the rubber sheath that covers the tube end of a multiple-sample needle?
it prevents leakage of blood when tubes are changed.
Which size needles are used for routine veni-puncture ?
20 ga. to 22 ga. needles.
What is the most important factor in choosing which gauge of needle to use for venipuncture ?
size and condition of the patient's arm.
Color coding of evacuated tubes relates to the :
presence or absence of additives.
Improper cleansing of a venipuncture site can cause:
The correct procedure for identifying a patient requires verifying matching information from all of the following sources :
requistion form, patients wrist ID band, and verbal statement of his or her name.
What is the proper order of vein selection for venipucture ?
median cubital, cephalic, basilic.
Which of the following has a higher value in capillary blood than in venous blood ?
A phlebotomist has attempted twice to draw a partial thromboplastin time on a patient with difficult veins. Both times the phlebotomist has been able to draw only a partial tube. What should the phlebotomist do ?
have another phlebotomist attempt to draw the specimen.
Collection of blood for a newborn screening in a capillary pipet and transferring it to the filter paper circle is not recommended because :
the pipet may scratch the filter paper.
To collect a cold agglutinin sample :
warm the sample tube for 30 minutes before collection.
It is necessary for a patient to fast for 12 hours before :
glucose tolerance test
When does the specimen timing of a glucose tolerance test ( GGT ) begin ?
after the patient has finished the glucose beverage.
Amniotic fluid is obtained from within the :
membrane surrounding a fetus.
A 72 hour stool specimen is collected to determine what ?
CSF analysis is used in the diagnosis of :
What specimen is required for a "rapid strep" test ?
Which of the following conditions would NOT be a reason to reject a specimen for analysis ?
A bilirubin specimen is icteric.
The following conditions are reason to reject a specimen for analysis :
A complete blood count ( CBC ) specimen has clots in it, an electrolyte specimen is hemolyzed, a fasting glucose specimen is lipemic.
An aliquot is a :
portion of a specimen being tested.
A courier delivers an unlabeled stat specimen drawn by a physician from the emergency department. Laboratory policy prohibits you from acepting an unlabeled specimen. How do you handle the situation ?
refuse to accept the specimen and send it back with the courier.
Which of the following describes proper centrifuge operation ?
"balancing" specimens by placing tubes of equal size and volume opposite one another.
The following are NOT proper centrifuge operations :
centrifuging specimens before they have a chance to clot, centrifuging serum specimens with plasma specimens, removing tube stoppers before placing specimens in centrifuge.
If there is a question behind a particular specimen collection, consult the :
The phlebotomist usually has complete control over all the following variables EXCEPT :
The phlebotomist has control over the following variables :
collection equipment, specimen collection, specimen labeling.
Which of the following does NOT represent a QA procedure ?
centrifuging specimens with the tube stoppers off.
The following do represent QA procedures :
centrifuging specimens that require chilling, in a temperature controlled centrifuge, covering light sensitive specimens with foil, and transporting cold agglutinin specimens in a heat block.
Electrical impulses of the heart can be monitered by the :
Determination of human chorionic gonadotropin ( HCG ) is used to evaluate :
What streptococcus group is detected when performing a "rapid strep test" on a throat culture ?
Before performing the dipstick test for a routine urinalysis, what two pretesting conditions must be met ?
the specimen must be at room temperature and well mixed.