A person with a blood pH of 7.21 is considered to have which of the following?

Choice A: All materials that enter the sterile field must be sterile

This is a correct principle of aseptic technique. Ensuring that all materials entering the sterile field are sterile is fundamental to preventing contamination and infection during surgical procedures. Any non-sterile item introduced into the sterile field can introduce pathogens, compromising patient safety.

Choice B: The surgical team working in the operative field must wear sterile gowns and gloves

This is another correct principle. Members of the surgical team who work directly in the operative field must wear sterile gowns and gloves to create a barrier against microorganisms. This practice helps maintain the sterility of the surgical environment and protects both the patient and the healthcare providers.

Choice C: The sterile package is contaminated once it has been opened

This statement is incorrect. A sterile package is not necessarily contaminated once it has been opened, provided it is opened correctly and the contents are handled using aseptic techniques. Proper opening and handling ensure that the sterility of the contents is maintained.

Choice D: The circulating nurse must wear sterile gowns and gloves

This statement is incorrect. The circulating nurse does not need to wear sterile gowns and gloves because they do not work directly in the sterile field. Instead, they assist by providing necessary supplies and support from outside the sterile area.

Choice E: Tables are sterile only at tabletop level. Items extending beneath this level are contaminated

This is a correct principle. In the operating room, the sterility of tables is maintained only at the tabletop level. Any items that extend below this level are considered contaminated and should not be used in the sterile field.

Choice F: A wide margin of safety is maintained between sterile and unsterile fields

This is also a correct principle. Maintaining a wide margin of safety between sterile and unsterile fields helps prevent accidental contamination. This practice ensures that sterile areas remain uncontaminated by non-sterile items or personnel.

Choice A reason:

Monitoring for shortness of breath or fatigue after ambulation is a critical task that requires clinical judgment and assessment skills. Certified Nurse Assistants (CNAs) are trained to assist with basic patient care activities but are not typically trained to assess and interpret clinical symptoms such as shortness of breath or fatigue. These symptoms could indicate serious complications such as pulmonary embolism or cardiac issues, which require immediate attention from a licensed nurse or physician. Therefore, this task is not appropriate for delegation to a CNA.

Choice B reason:

Determining whether the patient is ready to increase activity involves assessing the patient’s overall condition, including their vital signs, pain levels, and physical capabilities. This requires a comprehensive understanding of the patient’s medical history and current status, which falls within the scope of practice of a registered nurse (RN) or licensed practical nurse (LPN). CNAs do not have the training to make such determinations, as it involves critical thinking and clinical decision-making skills. Therefore, this task should not be delegated to a CNA.

Choice C reason:

Obtaining the patient’s blood pressure and pulse rate after ambulation is a task that is appropriate for delegation to a CNA. CNAs are trained to measure and record vital signs, including blood pressure and pulse rate. This task does not require clinical judgment or decision-making, making it suitable for delegation. The CNA can report the findings to the nurse, who can then interpret the results and make any necessary clinical decisions. This delegation allows the nurse to focus on more complex tasks that require their advanced training and expertise.

Choice D reason:

Instructing the patient on how to use an incentive spirometer involves patient education, which is a responsibility that typically falls to licensed nurses. Proper use of an incentive spirometer is crucial for preventing postoperative complications such as atelectasis and pneumonia. Ensuring that the patient understands how to use the device correctly requires not only demonstrating its use but also assessing the patient’s comprehension and ability to perform the task. This level of patient education and assessment is beyond the scope of practice for a CNA.