A nurse suspects impending respiratory failure in a client diagnosed with chronic obstructive pulmonary disease (COPD). The nurse should recognize that which assessment finding supports the presence of hypoxemia?
The client has circumoral cyanosis.
The client's heart rate is 86 bpm.
The client has a pulse ox of 90% on room air.
The client is lethargic.
The Correct Answer is C
A. The client has circumoral cyanosis: Circumoral cyanosis, or bluish discoloration around the mouth, is a sign of hypoxia but may not be present in all cases of hypoxemia. Pulse oximetry provides a more objective measurement.
B. The client's heart rate is 86 bpm: Heart rate may be within normal limits even in the presence of hypoxemia, as compensatory mechanisms may not be fully activated.
C. The client has a pulse ox of 90% on room air: A pulse oximetry reading of 90% indicates hypoxemia (oxygen saturation below normal levels), which is a significant finding, especially in a client with COPD who may already have compromised respiratory function.
D. The client is lethargic: Lethargy may occur with severe hypoxemia, but it is a late sign and may not always be present. Monitoring oxygen saturation is more reliable for early detection of hypoxemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Isolation gown: Isolation gowns are used as part of contact precautions or airborne precautions for specific infectious diseases that require additional transmission-based precautions beyond standard precautions. However, standard precautions are generally sufficient for caring for clients with HIV receiving antiretroviral therapy.
B. Contact isolation: Contact isolation is used for patients with known or suspected infections that can be transmitted by direct or indirect contact with the patient or their environment. HIV does not require contact isolation unless there are additional infections or conditions present that warrant contact precautions.
C. Standard precautions: Standard precautions are the basic infection prevention practices that apply to all patient care, regardless of the suspected or confirmed infection status of the patient. This includes practices such as hand hygiene, the use of personal protective equipment (e.g., gloves, gown, mask, eye protection) when indicated, and safe injection practices. Standard precautions should be used for all patients, including those with HIV, to prevent the transmission of infectious agents.
D. Respiratory isolation: Respiratory isolation is used for patients with known or suspected respiratory infections that are transmitted through respiratory droplets. HIV is not transmitted through respiratory droplets and does not require respiratory isolation.
Correct Answer is ["A","B","D","E"]
Explanation
A. Elevating the head of the bed 30 to 45 degrees helps prevent aspiration, which is a risk factor for ventilator-associated pneumonia.
B. Performing hand hygiene before touching the ventilator tubing is crucial to prevent the introduction of pathogens into the ventilator system.
C. Refraining from suctioning the client is incorrect; suctioning should be performed as needed to keep the airway clear.
D. Providing mouth care every 2-4 hours can reduce the risk of pathogens entering the lower respiratory tract.
E. Performing hand hygiene before touching the client reduces the risk of transmitting infectious agents to the client.
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