The nurse is admitting a client with possible tuberculosis (TB). The client is placed in a private room with airborne precautions pending diagnostic test results.
Which diagnostic test should the nurse review to confirm the diagnosis of TB?

Choice A rationale:

Observing the skin for lesions is not a specific technique for assessing early signs of rheumatoid arthritis. While RA can sometimes manifest with skin lesions, they are not typically present in the early stages of the disease. Moreover, skin lesions can be indicative of a wide range of other conditions, making them a less reliable indicator of RA.

Choice B rationale:

Palpating the lymph nodes is also not a specific technique for assessing early signs of rheumatoid arthritis. Lymph node enlargement can occur in various inflammatory conditions, including infections and autoimmune diseases. It is not a characteristic feature of early RA.

Choice C rationale:

Palpating large joints for nodules is a technique used to assess for rheumatoid arthritis, but it is more likely to detect nodules in later stages of the disease. Nodules are typically firm, non-tender bumps that develop under the skin around joints. They are often found in areas like the elbows, knuckles, and fingers. However, they may not be present in the early stages of RA.

Choice D rationale:

Observing the client's fingers is the most appropriate technique for assessing early signs of rheumatoid arthritis. This is because the fingers are often the first joints to be affected by the disease. Early signs of RA in the fingers can include:

Swelling of the finger joints, particularly the proximal interphalangeal (PIP) and metacarpophalangeal (MCP) joints. Tenderness and pain in the finger joints, especially upon movement.

Stiffness in the finger joints, which is often worse in the mornings and after periods of inactivity. Redness or warmth in the finger joints.

Difficulty bending or straightening the fingers.

Choice A rationale:

Liquefying secretions is the most crucial action to address the client's immediate respiratory concerns. Thickened mucus obstructs airflow, leading to shortness of breath, productive cough, and difficulty breathing upon exertion. Increasing fluid intake thins mucus, making it easier to expel and improving ventilation. This directly addresses the client's current symptoms and promotes airway clearance.

Hydration and Mucociliary Clearance: Adequate hydration is indispensable for optimal mucociliary clearance, the natural mechanism that removes mucus from the airways. Fluids moisten the respiratory tract, allowing cilia (tiny hair-like structures) to effectively move mucus upwards, where it can be coughed out or swallowed.

Thinning Mucus: Water acts as a natural expectorant, thinning mucus and reducing its viscosity. This makes it easier for the client to cough up the mucus, clearing the airways and reducing the sensation of breathlessness.

Decreasing Mucus Production: Dehydration can trigger the body to produce more mucus as a protective response. By staying hydrated, the client can help prevent excessive mucus production, further easing symptoms.

Supporting Overall Respiratory Health: Proper hydration maintains the health of the respiratory system's tissues and cells, promoting efficient gas exchange and reducing inflammation.

Preventing Dehydration-Related Complications: Dehydration can exacerbate respiratory problems and lead to other complications, such as fatigue, headaches, and impaired immune function. Maintaining adequate fluid intake helps prevent these issues.

Key points to emphasize to the client:

Drink fluids throughout the day, even if not feeling thirsty.

Water is the best choice, but clear broths, juices, and herbal teas can also contribute to fluid intake. Avoid caffeine and alcohol, as they can be dehydrating.

Monitor urine output to ensure adequate hydration (urine should be pale yellow or clear).

Increase fluid intake during periods of increased mucus production, such as during respiratory infections or exercise.