To deodorize the bathroom quickly, wipe down the walls and other surfaces with white vinegar. Focus on the area around the toilet, where the walls may have absorbed smells and more. If toilets are flushed with the lid up, contaminated water vapor can spray several feet, and linger on surfaces. 7. For an even simpler odor solution, pour vinegar into the toilet and let it work for an hour or so before flushing.
First-degree atrioventricular block. First-degree atrioventricular block (AV block), or PR prolongation, is a disease of the electrical conduction system of the heart in which the PR interval is lengthened beyond 0.20 seconds. In first-degree AV block, the impulse conducting from atria to ventricles through the atrioventricular node (AV node) is delayed and travels slower than normal.
During the PR segment, the electrical wave moves slowly through the atrioventricular (AV) node. This activity is not seen on the ECG. The PR interval is the time from the beginning of the P wave until the beginning of the QRS complex. It is normally between 0.12 and 0.2 seconds (three to five small boxes) in length. The PR interval may be prolonged when conduction of the electrical wave through the AV node is slow. This may be seen with degenerative disease of the node, or with digoxin, hyperkalemia, hypercalcemia, or hypothermia.