Perfusion Basic Science Practice
Questions
An advantage of continuous warm blood cardioplegia is - ✔✔Increased oxygen delivery
Intra-aortic balloon augmentation is contraindicated in pts with - ✔✔Aortic insufficiency
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Perfusion Basic Science Practice
Questions
An advantage of continuous warm blood cardioplegia is - ✔✔Increased oxygen delivery
Intra-aortic balloon augmentation is contraindicated in pts with - ✔✔Aortic insufficiency
When using a roller pump, aortic dissection caused by the aortic cannula may be detected by -
✔✔Elevated arterial line pressure
The most significant advantage of venovenous ECMO over venoarterial ECMO is -
✔✔Unaffected pulmonary hemodynamics
The rate of water extraction using an ultrafiltration device is dependent upon - ✔✔1. Number,
depth, and diameter of membrane pores
2.transmembrane pressure
3. Blood flow rate
When compared to trueembranes, hydrophobic microporous membrane oxygenators may exhibit
- ✔✔Fluid passage into the gas compartment
A low venous oxygen saturation may indicate - ✔✔1. Increased oxygen utilization
2. Inadequate pump output
3. Failure of the oxygenator to oxygenate the blood
Polyvinyl chloride tuning in the roller pump usually deteriorates by - ✔✔Cracking and breaking
from the outer edge in
The theoretical advantage of blood cardioplegia over crystalloid is evidenced by - ✔✔1. Greater
preservation of myocardial high energy phosphates
2. Greater myocardial oxygen utilization
3. Reduced cardiac enzyme release in the immediate post operative period
Activated factor X is the first step in which of the following coagulation stages - ✔✔Common
pathway
Under normal physiological conditions, which organ has the lowest oxygen consumption per unit
weight - ✔✔Kidney
The release of NE by the nerve impulses causes interaction with - ✔✔Alpha receptors
In a pt with chronic hypoxic condition, the oxyhemoglobin dissociation curve is shifted to the
right by - ✔✔Increased 2,3 DPG levels
The use of citrate phosphate dextrose (CPDA) blood in the perfusate affects what parameter -
✔✔Ionized calcium
Verapamil has actions similar to those of - ✔✔Nif
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