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.
Ovulation problems caused by hyperprolactinemia is an uncommon cause of ovulation problems. High prolactin can cause reduced FSH levels which then results in ovulation problems. The ovulation and fertility problems are treated with drugs to reduce prolactin levels back to normal so that regular ovulation will resume. High prolactin will decrease FSH (follicle stimulating hormone) levels. 2  This leads to irregular ovulation and irregular menstrual periods, or no periods at all-amenorrhea. 3  Galactorrhea-spontaneous milky nipple discharge (outside of nursing). 4  Fertility problems.