which of the following effects of drugs for tachyarrhythmias is not correct.
A: reduction of automaticity
B: slowing down conduction of atrial ventricular node conduction
C: elimination of reentry
D: prolongation of ERP and APD
E: acceleration of autodepolarization of pacemakers
A: reduction of automaticity
B: slowing down conduction of atrial ventricular node conduction
C: elimination of reentry
D: prolongation of ERP and APD
E: acceleration of autodepolarization of pacemakers
举一反三
- suppression of arrhythmias resulting from a reentry focus is most likely to occur if the drug A: has vagomimetic effects o the AV node B: is a beta-blocker C: converts a unidirectional block to a bidrectional block D: slows conduction through the atria E: has atropine-like effects on the AV node
- In a patient given a cardiac glycoside, which of the followings is/are important effects of the drug on the heart? A: Decreased atrioventricular conduction velocity B: Increased intracellular calcium C: Increased ectopic automaticity D: Increased force of contraction
- A 42-year-old male presents with the following ECG. Which of the following is the most likely diagnosis for this patient?[img=841x121]1803a04670a1f72.png[/img] A: Left atrial hypertrophy B: Right atrial hypertrophy C: Left ventricular hypertrophy D: Right ventricular hypertrophy E: Both sides atrial hypertrophy
- Which of the following is not the way of heat loss? () A: Shivering B: Radiation C: Conduction D: Convection E: Evaporation
- The following are descriptions of the excitatory conduction characteristics of nerve fibers. Which one is correct? A: One-way conduction can only be conducted from the cell body to the periphery. B: The fibers in the nerve trunk do not interfere with each other. C: As long as the structure is complete, it can conduct excitation normally. D: It is not affected by the change of internal environmental factors.