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.
In Minecraft, you can give the Depth Strider enchantment to the item you are holding in your hand with the /enchant command. Because there are different levels for this enchantment, here are a few examples of how to add the Depth Strider enchantment to the item selected in the hot bar.