Final answer:
A hypertonic (fleet) enema is used for 'enemas until clear' to induce bowel movements. It's important to use isotonic solutions like normal saline for intravenous therapy to maintain cell integrity. Oral route is convenient for antimicrobial home administration, and antiseptics are suitable for microbial control on living tissues.
Step-by-step explanation:
To administer enemas until clear, a hypertonic (fleet) enema is typically used. This type of enema works by drawing water into the colon, which helps to induce bowel movements.
When considering intravenous solutions, it is important to use an isotonic solution, such as normal saline or lactated Ringer's solution, because it has the same osmotic pressure as the body fluids, which prevents cells from swelling or shrinking. This is crucial for maintaining cell integrity and proper function.
For home administration of an antimicrobial to treat a systemic infection, an oral route is often considered the most appropriate and convenient. In comparison to intravenous or parenteral methods, oral administration does not require specialized medical equipment or assistance.
The correct substance for microbial control on tissues to prevent infection would typically be an antiseptic, as these are specifically intended for use on living tissues to kill or inhibit pathogenic microorganisms.