Tag Info

New answers tagged

5

Both your linked fact from the University of Arkansas When you sneeze, the intrathoracic pressure in your body momentarily increases. This will decrease the blood flow back to the heart. The heart compensates for this by changing its regular heart beat momentarily to adjust. However, the electrical activity of the heart does not stop during the sneeze. ...


4

This question seems to stem from a misunderstanding of the nature of the Blood-Brain-Barrier, the circulatory system of the brain and of thrombi. The BBB is describes differences in the structure of the walls of the blood vessels of the brain, it is not a barrier to flow within the vessel, but a specialized barrier to flow out of the vessel. In many tissues ...


2

Amiodarone inhibits sodium, potassium and calcium currents. Its major antiarrhythmic properties are thought to be related to prolongation of the action potential duration. Amiodarone also exerts an antiadrenergic effect by non competitively inhibiting alpha- and beta-receptors (Ghuran & Camm, 2000). Alpha blockers relax certain muscles and help small ...


1

Ambulatory means there is no emergency and refers to where the patient is and not to the disease itself (here the patient is out of hospital): for example there is no need to perform urgent PTCA or other procedures related to unstable CAD (coronary artery disease). Another option is - to hospitalize the patient to perform urgent or planned procedures if the ...


1

The mechanism of action of digitalis-like preparations based on inhibition of myocardial NA+/K+-ATPase as well as of cardiac conducting tissue. The inhibition of latter (conducting) is 2.5 greater than those of former (myocardial). This is why the main feature of digitalis intoxication are arrhythmias due to ectopic electric impulses and spontaneous ...



Top 50 recent answers are included