An older adult patient arrives at the clinic reporting decreased strength in knees and handgrips. What action should the nurse include in a functional assessment of this patient?

Management of respiratory distress in a long-term smoker requires knowledge of oxygen delivery systems and airway humidification. The nurse must apply principles of respiratory therapy to select equipment that ensures precise flow regulation and moisture addition to prevent mucosal drying during supplemental oxygen administration.

Choice A rationale: Lamb’s wool is occasionally used to protect skin from pressure sores caused by medical tubing. However, it is not a standard or essential component for initiating oxygen therapy, as modern medical-grade foam dressings or specialized tubing protectors are more commonly utilized in clinical practice.

Choice B rationale: Sterile water is essential for the humidification process when oxygen flow rates exceed 4 liters per minute. It serves as the reservoir liquid in the humidifier bottle to ensure the inhaled gas is moist, preventing the drying of sensitive respiratory mucosa and secretions.

Choice C rationale: Tape is generally avoided when securing nasal cannulas because it can cause skin irritation or breakdown on the face. The cannula is designed to be secured using the integrated sliding bolo or by looping the flexible tubing comfortably behind the patient's ears.

Choice D rationale: A suction canister is used for removing secretions from the oropharynx or trachea. While it may be present at the bedside for safety, it is not a functional component of the oxygen delivery system itself, which focuses on gas inhalation rather than extraction.

Choice E rationale: A humidifier bottle is necessary to add water vapor to the dry oxygen gas provided by the wall source. Humidification is vital for patient comfort and to maintain the integrity of the mucociliary escalator, especially for patients with chronic lung irritation from smoking.

Choice F rationale: The nasal cannula is the primary interface for delivering low-to-medium concentrations of oxygen. It consists of two prongs that fit into the nares, allowing the patient to breathe supplemental oxygen while still being able to speak and consume fluids or meals.

Choice G rationale: A flowmeter is a critical device that attaches to the oxygen wall outlet to regulate the liters per minute delivered. It allows the nurse to accurately titrate the oxygen dose according to the healthcare provider's specific orders and the patient's oxygenation needs.

Choice A rationale

Suggesting that the child participate in a team sport to encourage socialization is not the best response. Duchenne muscular dystrophy (DMD) is a progressive disease that causes muscle weakness and loss of muscle mass. Participating in a team sport could be physically challenging for the child and could potentially lead to injury.
Choice B rationale
Encouraging the parents to allow the child to continue attending swimming lessons with supervision is the best response. Swimming is a low-impact exercise that can help maintain muscle strength and flexibility in children with DMD. It also provides an opportunity for socialization.
Choice C rationale
Explaining that the child is too young to understand the risks associated with swimming is not the best response. Children with DMD can participate in swimming with appropriate supervision and safety measures in place.
Choice D rationale
Providing a list of alternative activities that are less likely to cause the child to experience fatigue is not the best response. While it’s important to consider activities that are appropriate for the child’s physical abilities, it’s also important to consider the child’s interests. The child has expressed a desire to continue swimming, and with appropriate supervision, this activity can be beneficial.