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. Expiratory wheeze

Expiratory wheeze is a high-pitched, musical sound heard primarily during expiration. It occurs when air passes through narrowed airways due to bronchoconstriction, inflammation, and increased mucus production, which are characteristic features of an acute asthma exacerbation. Expiratory wheezes are commonly heard upon auscultation of the chest in individuals experiencing asthma exacerbations.

B. Pleural friction rub

Pleural friction rub is a dry, crackling or grating sound heard during both inspiration and expiration. It typically occurs when the inflamed pleural surfaces rub against each other during breathing. Pleural friction rub is associated with conditions such as pleurisy (inflammation of the pleura) or pleural effusion (accumulation of fluid in the pleural space), rather than asthma exacerbations.

C. Fine rales

Fine rales, also known as fine crackles, are brief, high-pitched, discontinuous sounds heard primarily during inspiration. They are typically associated with conditions involving the small airways and alveoli, such as pulmonary fibrosis or congestive heart failure. Fine rales are not commonly heard in asthma exacerbations.

D. Rhonchi

Rhonchi are low-pitched, snoring or rattling sounds heard primarily during expiration. They result from the passage of air through airways obstructed by thick mucus or secretions. While rhonchi may be heard in individuals experiencing asthma exacerbations, they are less characteristic than expiratory wheezes, which are more commonly associated with asthma exacerbations. Rhonchi are often associated with conditions such as chronic bronchitis or pneumonia.

A. Assign health care personnel to nondirect care activities for 24 hr after developing influenza symptoms.

While it's important for healthcare personnel to stay home when they have influenza symptoms to prevent transmission to residents and coworkers, restricting them to nondirect care activities for only 24 hours may not be sufficient. Healthcare personnel with influenza symptoms should follow institutional policies regarding sick leave and clearance to return to work, which typically involve staying home until they are no longer contagious.

B. Place restrictions on visitation.

During an influenza outbreak in a long-term care facility, it's crucial to include interventions to prevent further spread of the virus. Placing restrictions on visitation helps reduce the risk of introducing the virus from outside sources into the facility. Visitors may inadvertently bring the influenza virus with them, potentially exposing vulnerable residents and staff members.

C. Implement airborne precautions for clients who have influenza.

Influenza is primarily transmitted through respiratory droplets rather than through airborne transmission. Airborne precautions are not typically necessary for managing influenza in a long-term care facility. Standard precautions, including hand hygiene, respiratory hygiene/cough etiquette, and use of personal protective equipment, are sufficient for preventing transmission.

D. Provide prophylactic antibiotics for clients who have been exposed to influenza.

Influenza is a viral infection and is not treated with antibiotics. Prophylactic antibiotics are not indicated for preventing influenza. Antiviral medications may be used for prophylaxis in certain high-risk individuals or in outbreak settings, but their use should be based on recommendations from public health authorities and healthcare providers, not blanket administration to all exposed individuals.