Treatment of a child with pseudomembranous colitis depends on the severity of disease. Mild cases require cessation of antibiotics and supportive therapy with fluids and electrolytes. Evaluate patients with severe or persistent antibiotic-associated colitis for C difficile toxin in the stool.
OptiFine allows zooming in by pressing the Control key. The closest thing in vanilla Minecraft is to use a bow and arrow, and aim the bow toward where you want to look, and to fire it when you are done looking.
Each mouse click or scroll wheel click zooms in or out by a factor of 2. Clicking and dragging over an axes when zooming in is enabled draws a rubberband box. When you release the mouse button, the axes zoom in to the region enclosed by the rubberband box.