Quiz 5 Flashcards
acts as lungs
Oxygenator / Heat Exchange Unit
acts as heart
Pump Head
resevoir
Filtered Cardiotomy
Bypass medication components (6):
♥ 10,000 units Heparin ♥ 200 cc 25% Mannitol ♥ 50 mEq’s Bicarb ♥ 200 mg Lidocaine ♥ 80 mEq’s K+ ♥ 5 grams Magnesium
Stopping heart – cardioplegia solution goes down _____________, not main heart from aorta
coronary arteries
Cardioplegia line can also vent out blood from heart to machine so heart does not ________
distend
Venous cannula drains ___ venous reservoir
RA
Acts as the atrium of thE heart lung machine circuit
Venous resevoir
SvO2 Goal:
70
If svo2 too low:
- turn up flows
- check crit
- o2 percentage can be increased
Safety mechanism which protects patient from receiving an air embolus
Bubble Detector
Postive displacment pump
roller pump
Non-occlusive constrained vortex pump
Centrifugal pump
Lowering __ degree celsius reduces metabolic rate by ____
1
7%
Mimics ventilator
O2 Blender
type of gas used
desflurane
Last safety device before blood enters patient
arterial filter
Provides safety mechanism for the heart lung machine by verifying proper placement of aortic cannula and assuring that over pressurization of the circuit does not occur
Arterial Line Manometer
In ____ systems the cardiotomy is integrated as a part of the venous reservoir instead of the collapsible bag
open
If proper venting does not occur then __ distention results
LV
Cardiac arrest via high K+ infusion via:
- aortic root
- coronary sinus (retrograde)
- vein grafts
- coronary ostia
High K+ infusion has significant ___________ effect
vasodilatory
Heparin levels are measures Q ___ minutes or as necessary to maintain an ACT of ____ sec.
30
> 480
Minimum Hct Cold, Warm ?
Cold – 21%
Warm – 24%
vitals summary (4):
- MAP 60-90mmHg
- Urine 1-2cc/kg/hr
- Temperature – Drift to
- 32 degrees Celsius
can monitor cvp/pa with line
Retrograde Cardioplegia Monito
Activated WBC’s are deposited or sequestered in
the lungs; where they release superoxides and
lysosomal enzymes, which produce endothelial
damage & in turn results in the accumulation of
extravascular water
PUMP LUNG
