This week Consumer Reports released news that arsenic was found in brown rice, white rice, rice breakfast cereals, organic rice baby cereal, and other rice productsââmany at worrisome levelsââin tests they performed.
First-degree heart block. First-degree AV block is defined as a PR interval longer than 0.2 seconds. Each atrial activation leads to a ventricular activation with a 1:1 correspondence.
In second-degree heart block there's a series of increasing delays in the time it takes the AV node to send the pulse to the ventricle. This will eventually lead to a heartbeat being skipped. There are two sub-types of second-degree heart block that are known as: Mobitz type 1 â this is the less serious type.