Explanation/Reference:
Explanation:
Enema tubing must be passed beyond the internal sphincter. Two inches is not far enough to pass the internal sphincter. Both 6 and 8 inches are too far and might cause trauma to the bowel. Basic Care and Comfort

Nitrous oxide produces analgesia and is often used for minor surgery and dental procedures that do not require loss of consciousness. It can also produce a mild euphoria in some clients. Nitrogen is a nonmetallic element that constitutes nearly four-fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas, N2, in various minerals and in all proteins. Nitric oxide is a potent vasodilator of vascular smooth muscle.
It is produced from L arginine. Nitrogen dioxide is a poisonous brown gas, NO2, often found in smog and automobile exhaust fumes.Pharmacological Therapies

Explanation/Reference:
Explanation:
When body substances are handled, the potential for transmission is increased; therefore, federal regulations require warning labels to communicate with other employees and/or waste collectors. The biohazard alert is a three-ring symbol overlaying a central concentric ring. Blood, drainage from wounds, feces, and urine are all body fluids that can transfer infection and disease to others. Safety and Infection Control

Explanation/Reference:
Explanation:
Palpitations and muscle weakness are found with excessive levels of Digitalis.

The remainder of the responses are indications for pelvic ultrasonography.Reduction of Risk Potential