A nurse is assessing a client who has asthma and signs of central cyanosis. Which of the following is a reliable indicator of cyanosis?

A. Oral mucosa:

The oral mucosa, including the inside of the mouth, tongue, and lips, is a reliable indicator of cyanosis. Cyanosis appears as a bluish discoloration of these tissues due to decreased oxygen saturation in the arterial blood. Assessing the oral mucosa is an essential component of clinical examination, especially in patients with respiratory conditions like asthma, as it provides valuable information about oxygenation status.

B. Tip of the nose:

While the tip of the nose may exhibit cyanosis in some cases, it is not considered as reliable of an indicator as the oral mucosa. The nasal tip is more susceptible to external factors such as cold temperatures or poor circulation, which can cause temporary discoloration. Therefore, it may not always accurately reflect the oxygenation status of the patient compared to the oral mucosa.

C. Ear lobes:

Cyanosis may be observed in the ear lobes in cases of severe hypoxemia, but it is not as reliable of an indicator as the oral mucosa. The ear lobes are less commonly assessed for cyanosis compared to other areas such as the lips, nail beds, or oral mucosa. While cyanosis may be present in the ear lobes, it is not typically the primary site assessed for oxygenation status.

D. Eyelids:

Cyanosis is not typically observed in the eyelids and is not considered a reliable indicator of hypoxemia. The eyelids are not commonly assessed for cyanosis during clinical examinations. While the conjunctiva (the lining inside the eyelids) may appear pale in cases of severe anemia, it is not a specific sign of hypoxemia. Assessment of the oral mucosa, lips, and nail beds is preferred for evaluating oxygenation status in patients with respiratory conditions like asthma.

A. Encourage fluid intake of 2.5 L per day.

This is an appropriate intervention for a client with pneumonia. Increasing fluid intake helps to thin respiratory secretions, making them easier to cough up and clear from the airways. Adequate hydration also supports overall health and immune function. However, the nurse should consider the client's individual fluid tolerance and any comorbid conditions such as heart failure that may necessitate fluid restriction.

B. Assist the client to cough and deep breathe every 4 hr.

This intervention is also appropriate for a client with pneumonia. Coughing and deep breathing exercises help to mobilize and clear respiratory secretions, preventing complications such as atelectasis and pneumonia. However, the frequency of coughing and deep breathing may need to be tailored to the client's tolerance and respiratory status.

C. Encourage independence in completing ADLs.

While promoting independence in activities of daily living (ADLs) is generally beneficial for older adult clients, in the context of pneumonia, the priority is to ensure adequate rest and conserve energy for recovery. Depending on the severity of the illness, the client may experience fatigue and dyspnea, making it challenging to perform ADLs independently. The nurse should assess the client's functional status and provide assistance as needed while promoting independence to the extent possible.

D. Use an N-95 respirator when providing client care.

This intervention is not directly relevant to the care plan for a client with pneumonia. N-95 respirators are primarily used for respiratory protection against airborne infectious agents such as tuberculosis or certain viral infections like COVID-19. While standard precautions should be followed when caring for a client with pneumonia to prevent the spread of infection, including hand hygiene and appropriate use of personal protective equipment (PPE), an N-95 respirator is not typically indicated unless the client has a specific respiratory pathogen requiring airborne precautions.