An increase in IGs of >2% can be a useful in identification of acute infection. Published studies have shown high specificity of IG count for infectious diseases but low sensitivity, precluding the use of such a count as a screening test for sepsis.
Three types of convergent boundaries are recognized: continentâcontinent, oceanâcontinent, and oceanâocean. Continentâcontinent convergence results when two continents collide. The continents were separated at one time by oceanic crust that was progressively subducted under one of the continents.
Convergent boundaries can cause mountain ranges like the Himalayas (continent-continent collision), subduction can create larger variety of rocks with MAFIC to FELSIC compositions. Divergent boundaries involve plates moving apart from each other and can cause mid-ocean ridges and the composition of the rocks is more MAFIC.