Search results
Results From The WOW.Com Content Network
A cardiac stress test is a cardiological examination that evaluates the cardiovascular system's response to external stress within a controlled clinical setting. This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate.
Dipyridamole is thus a pharmacological success diagnostically, but a therapeutic failure because of the coronary steal phenomenon. [ 4 ] Coronary steal is also the mechanism in most drug-based cardiac stress tests ; When a patient is incapable of doing physical activity they are given a vasodilator that produces a "cardiac steal syndrome" as a ...
Regadenoson, sold under the brand name Lexiscan among others, is an A 2A adenosine receptor agonist that is a coronary vasodilator that is commonly used in pharmacologic stress testing. It produces hyperemia quickly and maintains it for a duration that is useful for radionuclide myocardial perfusion imaging . [ 1 ]
A clinically useful form of cardiac protection. Exp Clin Cardiol 2000; 5: 116–121. (Note: Drug or physical loading induced late appearing protection of the heart from severe stress by adaptation to stress) 16. Szekeres L., Pharmacological induction of delayed and prolonged cardiac protection: The role of prostanoids.
The stress test can result in three outcomes: Pass, Partly Pass and Fail, based on the comparison of the quantified risks to acceptable risk exposure levels and a penalty system. Phase 3: Decision, during which the results of the stress test are analyzed according to the goal and objectives defined in Phase 1. Critical events (events that most ...
Before the development of the Bruce Protocol, there was no safe, standardized protocol that could be used to monitor cardiac function in exercising patients.Master's Two-Step Test was sometimes used, but it was too strenuous for many patients and inadequate for the assessment of respiratory and circulatory function during varying amounts of exercise.
The light-dark box test (LDB) is a popular animal model used in pharmacology to assay unconditioned anxiety responses in rodents. [1] The extent to which behavior in the LDB measures anxiety is controversial.
There are various classes of agents that are most effective for pharmacological cardioversion. Class I agents are sodium (Na) channel blockers (which slow conduction by blocking the Na+ channel) and are divided into 3 subclasses a, b and c. Class Ia slows phase 0 depolarization in the ventricles and increases the absolute refractory period.