Medical Procedures - C Flashcards
The blood lancet is used for the collection of blood specimens by ______.
skin puncture
The standard point of the lancet to be used when collecting blood from a newborn heel is ______ in length. (Note: Please check current guidelines, as this changes.)
2.4 mm
The most important step in the performance of a venipuncture is _______.
positively identifying the patient
When cleansing the venipuncture site, it is good practice to:
cleanse the site from the inside out and allow it to air dry
To determine the size of the needle remember that the higher the gauge number the _______ the needle.
smaller
An instrument called a centrifuge ________.
separates the cellular and liquid portion of the blood
Rubber sleeves on an evacuated tube system make it possible for ________.
multiple use
Preparing or a glucose tolerance test ______ hours before or during the test, the patient should not eat, smoke, drink coffee or alcohol.
ten
In the evacuated blood collection system the evacuated glass tubes come in different sizes, and the stoppers are _______ to denote the type of additive or lack of one.
color coded
During a venipuncture, to secure the needle during insertion into the tube stopper, you need a __________.
holder
Which needle gauges are most commonly used for venipuncture?
21 - 22
When performing a venipuncture, the tourniquet should be wrapped around the arm about three to four inches from where you are going to _______ for a vein.
feel
When performing a venipuncture, if you have the patient _______ the veins will become more prominent.
make a fist
Which of the following is false?
veins pulsate
Use your index finger when you _______ for a vein.
palpate
Arterioles are the smallest type of ________.
arteries
The maximum time a tourniquet should be tied on the upper arm while drawing blood is ________.
1 min
To cleanse the typical venipuncture site, begin at the intended site of the draw and ________.
work in a circle to the periphery
The venipuncture site should be cleansed with ________.
an alcohol prep
When using a centrifuge, make sure equal weights are ________.
opposite each other
The lid to the centrifuge should be kept ______ when in use.
closed
When using an evacuated tube for collection of electrolytes use a _______.
red-top tube
When collecting blood for a hematocrit test use a ________.
lavender-top evacuated tube
When collecting blood for cholesterol tests use a ______ top evacuated tube.
red
The primary anticoagulant additive EDTA removes calcium by forming insoluble or un-ionized calcium salts. It has an advantage of preventing platelet clumping and the formation of artifacts, therefore, good for preparation of _______.
blood films
Sodium citrate is an anticoagulant of choice for coagulation studies because it protects certain of the _______.
pro-coagulants
The tube to collect whole blood with an additive in it has a ______ stopper.
lavender
The color coding for a stopper of a tube with no additives is (for collection of serum) ________.
red
At the kitchen where you are going to feel for a vein, wrap the tourniquets around the arm approximately _______ above the area.
three to four inches
The cephalic, medial cubital, and basilic veins are ______ used for venipuncture.
primarily
When doing a venipuncture the syringe or tube should be ______ the venipuncture site to prevent back-flow.
below
When anti coagulated blood is centrifuged _________ goes to the top of the tube.
plasma
When anti coagulated blood is centrifuged _________ goes to the bottom of the tube.
red blood cells
When collecting blood by skin puncture on an infant, you should use a _______.
lancet
The tube used to collect a blood sample for a Complete Blood Count (CBC) is _______.
lavender top, ethylenedianminetetraacetic acid additive
Which of these lab tests monitor anticoagulation therapy?
PT and PTT
Which one of the following evacuated tubes would be drawn first?
red
Making sure that a tube is correctly labeled with the patient’s complete name and identification number is part of the facilities ______ plan.
quality control
When performing a venipuncture if no blood flows into the tube how would you correct this situation?
gently insert the needle a little deeper; gently pull the needle out just a little; remove the needle and tourniquet and prepare another site - ALL OF THE ABOVE
If during a venipuncture a patient has a syncopal episode what would be your best course of action?
remove the needle and tourniquet and lower the patient’s head and arms
The most appropriate site for performing a capillary puncture in a healthy adult is the _________.
fingers
It is very important when performing a capillary stick to do which one of the following?
Wipe away the first drop of blood
Performing a _____ as a part of a complete blood count determines the ratio of the volume packed red blood cells to that of whole blood.
hematocrit
__________ values are increased in infections and inflammatory disease.
erythrocyte sedimentation rates
What type of blood sample will be needed to perform a hemoglobin test?
EDTA added
How many hematocrit tubes should be collected from the patient?
2
What type of blood sample is needed when performing a PKU?
capillary
A _______ is a small, sterile, needle like piece of metal used to make small punctures in the dermis.
lancet
In drug testing the ________ regulates describe how evidence is to be collected and handled.
chain of custody
A(n) ________ required the patient to be fasting and then blood is taken every hour for a predetermined time.
glucose tolerance test
