Flashcard Set Preview
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| 1 |
Name four Performance characteristics of tubing.
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Durometer/hardnessInert- StableTolerant of heat sterilizationTransparent- to see venous vs...
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| 2 |
What type of tubing is used at Cooper?
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PVC
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| 3 |
What type of tubing has a high durometer for long term use but is very expensive?
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Super Tygon
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| 4 |
What is the significance of albumin?
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Albumin is used as a precoating of tubing; it has a positive charge (PVC has a negetive charge)...
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| 5 |
What are three hazards with tubing?
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Degradation- spallationDisconnetionRupture
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| 6 |
Significance of 1/2 inch
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1/2 inch is a tubing size for venous line in an adult over 65kg. Therefore we use this size...
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| 7 |
Arterial Line size in adults
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3/8 inch 22 cc per foot
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| 8 |
1/4 inch tubing is used for
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cardioplegia, vent, and suckersor venous and arterial line in children
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| 9 |
What is usually the narrowest part of the perfusion system?
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Tip of the arterial cannula
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| 10 |
What are the sources of intracardiac blood that must be vented?
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Bronchial and thebesian veinsand blood that gets by the cannulas
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| 11 |
Why must the heart be vented?
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To prevent distension of the cardiac chambers. If heart is repeatedly distended it can become...
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| 12 |
True or False:Tubing begins to breakdown from the outside and continues inwards
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FalseBreakdown occurs from the inside out since inside is rubbing against itself, spallation...
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| 13 |
What is occlusion?
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How much the roller pump squeezes tubing
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| 14 |
If roller pump occulsion is too tight tubing could _________ whereas if it is too loose blood/solution...
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rupturenot adequately move through tubing
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| 15 |
Vent pulls blood from ____________circulation of heart
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collateral
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| 16 |
The _________ _________ is a low pressure receiving chamber for venous blood. It facilitates...
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venous reservoirgravity drainage
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| 17 |
True or False:Vacuum assisted venous drainage is possible in a closed system venous reservoir.
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FalseVacuum assisted venous drainage can only be used with an open system (hard shell) venous...
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| 18 |
Name four different safety monitoring devices and discuss what they do and where they are located.
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SVO2 monitorArterial line pressure alarmLow Level alarmBubble alarm
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| 19 |
Cannulas should be _______ to insert, have ______ resistance to blood flow, and be ______ enough...
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easy to inserthave low resistance to blood flowhard enough to prevent collapse
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| 20 |
What cannula might have a balloon near the tip and why?
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Cannula used in Retrograde Cardioplegia, in which the potassium solution passes through heart...
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| 21 |
Where does the cannula go in Retrograde cardioplegia?
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Coronary sinus, solution then flows backwards through venous then arterial system.
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| 22 |
True or False:In Antegrade cardioplegia the superior vena cava is cannulated and the potassium...
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FalseIn antegrade cardioplegia the cannula is inserted in the aortic root and the solution...
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| 23 |
True or False: A one way valve in the vent prevents accidental introduction of air into the...
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True
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| 24 |
True or False:If the vent is placed in the aortic root that cannulation can also be used for...
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True
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| 25 |
What is a Chatter or Bump?
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Problem with venous cannulation. Venous blood is draining too quickly causing negative pressure....
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| 26 |
How can you fix a chatter or bump?
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Reduce vacuum or partially clamp the venous line. Slow the flow
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| 27 |
What is an E.R.C.?
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Electronic Remote ClampSafety device on arterial line, occludes the line when there is a problem...
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| 28 |
Pressure drop is ....
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the difference between the pressure entering cannula and pressure leaving it
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| 29 |
Pressure drop should be under ________. The ______ of the cannula will effect this value.
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100 mmHgsize
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| 30 |
Pressure gradients of greater than 100 mmHg will cause __________ and _______ ___________....
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hemolysisprotein denaturationjetting
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| 31 |
Jetting can dislodge _________ or produce aortic wall _____________.
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plaquedissections
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| 32 |
True or False:Volume is easily managed and observed in a closed system venous reservoir.
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FalseIt is easier to manage the volume in an open system with a hard shell because it is graduated...
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| 33 |
True or False:Air is passively vented to atmosphere in an open system venous reservoir.
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True
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| 34 |
What are some disadvantages of the open system venous reservoir?
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Possibility of leaching Antifoam ABlood activation due to blood/ air mixingIf emptied can introduce...
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| 35 |
What is isoflurane?
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Inhalation anesthetic, also acts as a vasodilator
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| 36 |
How many temperatures are displayed on the bypass console? What are they?
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Four:ArterialVenousCardioplegiaCore Body temp- measured in bladder or rectum
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| 37 |
What does the vent line have to prevent air from travelling to the aorta or left ventricle?
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One way valve
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| 38 |
What are the thicknesses of the different tubings?
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All are 3/32 inch in thickness
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| 39 |
What is used for priming the pump?
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Isolyte solution or another isotonic solution
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| 40 |
What is the purge line? Where is it located?
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The purge line comes out of the 3-way stopcock on top of the arterial filter. It is a safety...
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| 41 |
When might an arterial cannula be placed in the femoral artery?
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During Minimally invasive surgery
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| 42 |
What is the most common placement of the arterial cannula?
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Ascending aorta
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| 43 |
What are some possible complications with the arterial cannula?
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Difficult insertionbleedingmalposition of the cannula tiptear in the aortic wallhigh line pressure...
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| 44 |
What does Atrialcaval refer to?
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a single 2 stage cannula. (one cannula, 2 openings)one opening in IVC other in RAless traumatic,...
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| 45 |
Define Dual caval
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2 single stage cannulae one in SVC one in IVC Y'd together
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| 46 |
How can you increase venous drainage?
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Use vacuum or increase height difference between bed and reservoir
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| 47 |
Amount of venous drainage is determined by...
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Central venous pressure; height differential; resistance in cannulas, tubing and connectors;...
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| 48 |
What type of pump is used on arterial line?
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Centrifugal
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| 49 |
What is the sampling manifold?
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Set of three ports located on top of venous reservoir. From left to right- the first two are...
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| 50 |
In what direction do the roller pumps move?
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Counterclockwise
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