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: Decreased atrioventricular conduction velocity
B: Increased intracellular calcium
C: Increased ectopic automaticity
D: Increased force of contraction
举一反三
- Metabolic alkalosis will lead to() A: decreased intracellular [K+]. B: increased intracellular [K+]. C: increased extracellular [K+]. D: normal intracellular [K+].
- The assembly line significantly _________the assembly time per vehicle and _______the profit margin. A: decreased; increased B: increased; decreased C: increased；increased D: decreased；decreased
- Which one of the following situations is not associated with the dysfunction of excitation-contraction coupling in myocardium? A: Acidosis B: The obstruction of L-type calcium channels C: The increased activity of myosin ATPase in myocardium D: The increased foetus troponin E: The decreased activity of sarco-endoplasmic reticulum calcium-ATPase
- Which one is the main mechanism of inflammatory edema? ( ) A: Decreased plasma colloid osmotic pressure B: Increased capillary permeability C: Lymphatic obstruction D: Increased ANP E: Decreased GFR
- Which of the following is a consequence of myelination in large nerve fibers? A: Decreased velocity of nerve impulses B: Generation of action potentials only at the nodes of Ranvier C: Increased nonselective diffusion of ions across the axon membrane D: Increased membrane capacitance