How Can You Tell if You Have White Mold or Efflorescence? First, look at the type of material on which you see the white substance. If you see it on anything other than concrete or masonry, itâs mold. Second, spray the substance with a little water in a spray bottle and simply wipe it with a rag.
Thus, as shown in electrophysiologic studies, PR interval prolongation (ie, first-degree AV block) may be due to conduction delay within the right atrium, the AVN, the His-Purkinje system, or a combination of these. Overall, dysfunction at the AVN is much more common than dysfunction at the His-Purkinje system.
Unfortunately, you might find that menopausal hot flashes continue into postmenopause. Irregular Periods. During perimenopause, you might receive sporadic periods. After 12 months without one however, you can be sure that you'll never have to buy another tampon. If you experience bleeding during postmenopause, you must seek medical advice. While the cause is likely to be minor, it will not constitute a menstrual period and could be a sign of a more serious health concern.