Correct Answer: C

Rationale: Correct Answer: C - Diffusion Rationale: Diffusion is the movement of a substance from an area of higher concentration to an area of lower concentration. This process occurs naturally to achieve equilibrium. In the context of fluids and electrolytes, this movement helps maintain balance within the body. Unlike osmosis, which involves the movement of water molecules across a semi-permeable membrane, diffusion applies to the movement of all types of substances. Filtration involves the movement of substances through a barrier under pressure, and active transport requires energy to move substances against a concentration gradient. Therefore, the correct answer is diffusion as it aligns with the principle of movement from high to low concentration for achieving equilibrium.

Correct Answer: A

Rationale: The correct size of suction catheter for James would be Fr. 5. The selection of suction catheter size is based on the patient's height and weight, as well as the secretions to be cleared. A Fr. 5 catheter is appropriate for an average adult like James, as it balances between being too small or too large. Fr. 12 and Fr. 18 are too large for his size and could cause trauma, while Fr. 10 is slightly larger than needed, increasing the risk of mucosal damage. Therefore, Fr. 5 is the most suitable choice for James.

Correct Answer: C

Rationale: The correct answer is C because respirations of 16 is an observable and measurable data point that can be quantified. Objective data are factual, measurable, and based on observable phenomena. In contrast, choices A, B, and D are subjective data as they rely on the patient's feelings or experiences, which are not directly measurable or observable by the nurse. Reporting a headache or feeling nauseated are subjective symptoms that are based on the patient's perception and cannot be verified without further assessment. Therefore, only choice C provides objective data that can be accurately reported by the nurse.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Dressing changes twice a day help maintain a clean wound environment, reducing the risk of infection. 2. Regular dressing changes promote proper wound healing by facilitating moisture balance and removal of dead tissue. 3. It is a direct intervention that addresses the patient's poor wound healing. 4. Teaching the patient about signs of infection (B) is important but does not directly address the wound healing process. 5. Instructing the family on dressing changes (C) is helpful but should not substitute direct patient care. 6. Refocusing the patient from body image changes (D) is not directly related to improving wound healing.

Correct Answer: D

Rationale: The correct answer is D: menstrual flow. In a 28-year-old female with Cushing syndrome, excess cortisol levels can disrupt the menstrual cycle, leading to irregular or absent periods. Successful treatment for Cushing syndrome aims to restore normal cortisol levels, which should result in the resumption of regular menstrual flow. This indicates that the hormonal balance is improving. Now, let's analyze the other choices: A: Serum glucose level - While Cushing syndrome can lead to hyperglycemia, successful treatment would aim to normalize glucose levels, not cause a decline. B: Bone mineralization - Cushing syndrome can cause osteoporosis due to loss of bone density, but successful treatment would help prevent further bone loss rather than decline. C: Hair loss - Cushing syndrome can cause hair loss, but successful treatment would not necessarily lead to a decline in hair loss as it may take time for hair to regrow. Therefore, the correct answer is D as it directly relates to the restoration of hormonal