A patient has difficulty in breathing. The nurse provides oxygen therapy to the patient, after which the patient feels better. Which principle is involved in this situation?

Choice A rationale:

Enclosing the dressing in a single clear plastic bag and discarding it in the bedside trash receptacle is not the appropriate method for disposing of a dressing saturated with blood and purulent drainage. Blood and purulent drainage are considered potentially infectious materials, and they should be handled as biohazardous waste to prevent the spread of infection.

Choice B rationale:

This is the correct choice. When dealing with potentially infectious materials such as blood and purulent drainage, it's essential to dispose of them in a biohazardous waste container. This specialized container is designed to contain potentially infectious materials and prevent their spread, thereby protecting both healthcare workers and the environment.

Choice C rationale:

Discarding the dressing in the bedside trash receptacle is not the recommended approach for disposing of materials that are contaminated with blood and purulent drainage. Simply discarding it in the regular trash increases the risk of infection transmission and is not compliant with proper infection control practices.

Choice D rationale:

Double-bagging the dressing in clear bags and labeling it "biohazard" is a good practice to ensure proper containment. However, it's not the most comprehensive method of disposal. Placing the dressing in a dedicated biohazardous waste container is a more secure and standardized method for disposing of potentially infectious materials.

Choice A rationale:

The choice "Rectus Femoris" is not the correct answer. The rectus femoris is a muscle located in the thigh and is not a common site for intramuscular injections due to its location and proximity to important structures.

Choice B rationale:

The correct answer is "Vastus Lateralis." Choice B is the correct answer. The vastus lateralis muscle is located on the lateral aspect of the thigh and is a suitable site for intramuscular injections. It is often used in infants and young children or in adults who have limited deltoid muscle mass.

Choice C rationale:

The correct answer is "Dorsogluteal." Choice C is the correct answer. The dorsogluteal muscle, located in the buttocks, has historically been used for intramuscular injections. However, it's important to note that due to the proximity of the sciatic nerve and the potential for incorrect injection technique, this site is used less frequently now.

Choice D rationale:

The choice "Lower abdomen" is not the correct answer. The lower abdomen is not a recommended site for intramuscular injections due to the risk of injuring underlying structures and the potential for subcutaneous injection instead of intramuscular.

Choice E rationale:

The correct answer is "Deltoid." Choice E is the correct answer. The deltoid muscle, located in the upper arm, is commonly used for intramuscular injections, especially for vaccines and smaller medication volumes. However, it has a limited muscle mass and may not be suitable for larger injection volumes.