During an assessment of a neonate born at 33 weeks' gestation, a nurse finds and reports a heart murmur. an echocardiogram reveals patent ductus arteriosis, for which the neonate received indomethacin. an expected outcome after the administration of indomethacin to a neonate with patent ductus arteriosis is:

It can be expected that there will be closure of the patent ductus arteriosus for this is the effect of indomethacin. The adverse effect would include platelet dysfunction, decrease gasto-intestinal motility and an increase in necrotizing enterocolitis. With this, the nurse should anticipate the possible outcomes where there will be increase bleeding time and decrease gastro-intestinal function after giving indomethacin.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.