Correct Answer: A

Rationale: The combination of recurrent joint pain, swelling, and limited range of motion in multiple joints along with elevated ESR, positive RF, and presence of anti-CCP antibodies is classic for rheumatoid arthritis (RA). Elevated ESR indicates inflammation, positive rheumatoid factor (RF) is an autoantibody commonly found in the serum of patients with RA, and the presence of anti-cyclic citrullinated peptide (anti-CCP) antibodies further supports the diagnosis of RA. These laboratory findings along with the clinical presentation are highly suggestive of rheumatoid arthritis. Systemic lupus erythematosus (SLE), ankylosing spondylitis (AS), and psoriatic arthritis (PsA) can have overlapping symptoms with RA, but the specific combination of elevated ESR, positive RF, and anti-CCP antibodies points more towards RA in this scenario.

Correct Answer: A

Rationale: Checking the flow of oxygen is the priority action because it ensures that Sonny is receiving the correct amount of oxygen prescribed by the healthcare provider. Before connecting the flow meter to the oxygen outlet, turning on the oxygen, or attaching the humidifier, it is crucial to verify that the flow rate is appropriate for Sonny's condition. Monitoring and adjusting the oxygen flow will help maintain the desired oxygen saturation levels and prevent potential complications related to oxygen therapy.

Correct Answer: B

Rationale: The correct action for the nurse to ensure proper insertion technique during a urinary catheterization is to use aseptic technique and sterile equipment. This is crucial in preventing infections and ensuring patient safety. Aseptic technique involves maintaining cleanliness and preventing the introduction of harmful microorganisms during invasive procedures like catheterization. Using sterile equipment helps minimize the risk of introducing bacteria into the urinary tract, which could lead to a urinary tract infection (UTI). Therefore, it is essential that the nurse follows strict infection control protocols and uses sterile equipment to maintain patient safety and well-being during the catheterization procedure.

Correct Answer: A

Rationale: The theory that categorizes professionals as Novice to experts is by Patricia Benner. Patricia Benner developed the Novice to Expert model, which describes how individuals progress through five levels of proficiency in a skill or field. The five levels are Novice, Advanced Beginner, Competent, Proficient, and Expert. Benner's model is widely used in nursing education and research to understand how nurses develop their clinical skills and expertise over time.

Correct Answer: D

Rationale: The most common symptom of scabies that the family would report to Nurse Emma is itchiness. Scabies is a contagious skin condition caused by the Sarcoptes scabiei mite, which burrows into the skin and lays eggs, leading to intense itching, especially at night. The itching is a result of the body's allergic reaction to the mites and their waste products. While rashes, scaling, and swelling can also occur with scabies, the hallmark and most bothersome symptom experienced by individuals with scabies is the intense itchiness, making it the most common symptom reported by affected individuals or their families during the history-taking process.