Chapter 53 Assisting in Phlebotomy

It is important to shake a Vacutainer tube after collecting a blood sample so that the sample and additive are properly mixedFalse
YOu notice patient is developing petechiae during blood draw. This typically means patient has a bleeding disorderFalse
Which of the following Vacutainer tubes is routinely used for hematology testing?A. Lavender topped
No anticoagulants are found in which of the following tubes?B. Red topped
Which type of tube should be used to collect blood specimens during glucose tolerance testC. Gray topped
____ is an anticoagulant that prevents platelets from clumping and preserves the apperance of blood cells for microscopic preparationC. Ethylenediamine tetraacetic acid (EDTA)
The slant at the open end of a needle used for venipuncture is calledB. bevel
The needle size most commonly used for adult venipuncture is ___ gauge.D. 21
The needle size most commonly used by blood bank for donations is ___ gaugeA. 16
The needle size most commonly used in infants and the elderly is ___ gaugeB. 23
Plasma could be retrieved fromD. B and C (SST red-gray tube, PST green-gray tube)
A tourniquet is used during the phlebotomy procedure toD. B and C (prevent venous flow out of the site, cause the vein to bulge)
A tourniquet should remain tied on a patients arm no longer thanD. 1 minute
Without a clot activator, whole blood typically clots in ___ minutesC. 30 to 60
Thixotropic gel, found in SST red-gray marbled-topped Vacutainer tube isD. less dense than red blood cells but more dense than serum
The ___ is part of the venipuncture needle that fits into syringe or Vacutainer adapterC. Hub
Proper order for venous blood specimen for hematologyC. Light blue, red, lavender
You are required to collect a venous sample for typical hematology test, the complete blood countE. lavender-topped tube
A syringe is preferred over a Vacutainer collection device whenA. patients veins are fragile
Leaving a tourniquet tied on a patients arm for longer than the recommended time results inB. hemoconcentration
Before a routine venipuncture or capillary puncture, the site typically is cleaned withA. isopropyl alcohol
In a routine venipuncture, the angle at which the needle enters the arm should be ___ degreesC. 15
During a routine venipuncture, when should the phlebotomist request that the patient “make a fist”A. after applying the tourniquet and before inserting the needle
During a routine venipucture, when should the phlebotomist request that the patient “release the fist”?C. when blood enters the first tube being drawn
When is the correct time to remove the tourniquet during a routine venipuncture?B. as the last tube to be drawn begins to fill
Which veins can be used to routine venipuncture?D. all of the above (medial cephalic, medial basilic, supplementary cephalic)
A winged infusion set is also known asC. butterfly needle
A needle-stick is more likely to occur ifA. an attempt is made to recap a needle
why should a tourniquet not be tied too tightly?D. all of the above (impedes arterial blood flow, restricts venous blood return, results in poor venous distention)
A hematoma can be caused byD. all of the above
Blood obtained via capillary puncture can be collectedE. all of the above
The device used for dermal puncture isB. lancet
The most common phlebotomy site in adults isC. veins in the antecubital space
The proper procedure to collecting serum specimen isE. B and D (allow specimen to cloth, use red or marbled top tube)
Which is the most correct method for performing capillary puncture?C. Wipe away the first drop of blood and then collect the sample
You are performing capillary puncture on patient and having difficulty collecting adequate sample. Which is acceptable method to encourage blood flow from siteD. gently rub finger along side
The clear part of whole blood contains clotting agentsA. plasma
Capillary blood samples may be collected at following sites exceptA. antecubital space
Which is proper technique for performing venipuctureA. needle bevel is faced up, needle is inserted at 15 degree angle
The color of the tube top for collecting coagulation testB. light blue