CVPR 316 Cardio Perfusion Tech / Intructor Bruce Flashcards
To determine what components are necessary to fully support the patient during surgery, what information is necessary?
- Surgery planned
- Height
- Weight
- Hematocrit
When selecting components for an extracorporeal circuit, the perfusionist must balance what 3 things?
- ) Reduction of prime volume
- ) Reduction of surface area
- ) The predicted need to accommodate maximal flow.
A circuit larger than needed causes what ?
Unnecessary hemodilution and increased blood to surface contact.
A smaller than needed circuit causes what ?
- ) Not enough oxygenation provided.
2. ) Unacceptable high circuit pressures.
Prime Volume for 1 foot 1/4 tube?
9.65 ml
Prime Volume for 1 foot 3/8 tube?
21.71 ml
Prime Volume for 1 foot 1/2 tube?
38.61 ml
Recommended VENOUS tubing size for a patient < 25 kg per R&S ?
1/4
Recommended VENOUS tubing size for a patient 25-65 kg per R&S?
3/8
Recommended VENOUS tubing size for a patient
< 1 l/m per SUNY?
1/4
Recommended VENOUS tubing size for a patient
1 - 3.5 l/m per SUNY?
3/8
Recommended ARTERIAL tubing size for a patient
< 25 kg per R&S ?
1/4
Recommended ARTERIAL tubing size for a patient
> 25 kg per R&S ?
3/8
Recommended ARTERIAL tubing size for a patient requiring < 3.0 L/m per SUNY ?
1/4
Recommended ARTERIAL tubing size for a patient requiring
> 2.5 per SUNY ?
3/8
Recommended VENOUS tubing size for a patient requiring
> 3.5 L/m per SUNY?
1/2
The #1 greatest resistance to flow from the arterial side of the circuit should always be what?
1.) the arterial cannula
The #2 greatest resistance to flow from the arterial side of the circuit should be what?
2.) Arterial filter
A venous reservoir “rated” to less than your top flow can compromise your venous return and result in what ?
Bad CPB
Venous reservoirs have a maximum flow rating, what does this mean?
Fastest rate at which blood can passively pass through its internal filter mechanisms.
An inappropriately sized arterial filter with top flow 2.5 L/m placed in an adult circuit and forced to filter 5 L/m can cause what problems?
- ) Unacceptably high resistance to flow.
- ) High line pressures
- ) Hemolysis
- ) Unnecessary hemodilution
Filters come with either 3/16, 1/4, or 3/8 inch connectors. Therefore once you pick a filter, you also select what by default?
Arterial line size
Arterial line filter (COBE SENTRY) adult capacity?
8 L/m
Arterial line filter (Terumo/Capiox CX* AF02) Pediatric capacity?
2.5 L/M
Arterial line filter (COBE D736) new born infant capacity?
2.0 L/m
Arterial line filter (Pall 1440) infant capacity?
3.0 L/m
