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.
Second-degree heart block occurs when some electrical signals from the atria don't reach the ventricles, resulting in dropped beats.. Second degree heart block can be classified as Mobitz Type 1 or Mobitz Type 2. Mobitz Type 1 is also commonly referred to as Wenckebach and may not cause noticeable symptoms.