A nurse is preparing to assess the oxygen saturation level of a client with a history of peripheral vascular disease using pulse oximetry. The nurse plans to apply the sensor to the client's right index finger. Assessment reveals slow capillary refill and a weak pulse proximal to this finger. Which action by the nurse is appropriate?
Apply the sensor to the client's sternum
Place the sensor on the client's right index finger
Apply the sensor to the client's right great toe
Place the sensor on the client's earlobe
The Correct Answer is D
A. Apply the sensor to the client's sternum: The sternum is not a reliable site for standard pulse oximetry because it lacks a strong pulsatile arterial signal. Reflectance sensors can be used on the chest in specific settings, but this is generally less accurate for routine oxygen saturation monitoring compared with peripheral sites with good perfusion.
B. Place the sensor on the client's right index finger: The right index finger is the typical site for pulse oximetry; however, in this client with peripheral vascular disease, slow capillary refill and a weak pulse indicate poor perfusion. Using this site could produce inaccurate readings, including falsely low SpO₂ values or signal loss, making it inappropriate in this situation.
C. Apply the sensor to the client's right great toe: The toe can sometimes be used if upper extremities are unavailable, but peripheral vascular disease may also compromise perfusion in the lower extremities, especially in the presence of arterial disease. This could also result in unreliable readings.
D. Place the sensor on the client's earlobe: The earlobe provides a site with more consistent perfusion that is less affected by peripheral vascular disease. It is suitable for pulse oximetry in patients with weak or compromised distal pulses, allowing accurate measurement of oxygen saturation while bypassing poorly perfused fingers or toes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Anxious client awaiting a procedure reporting new onset of chest pressure: New chest pressure in a client can indicate acute myocardial ischemia or another life-threatening cardiac event. Immediate assessment and intervention are critical to ensure patient safety, making this the highest-priority client. Prompt recognition of potential cardiac compromise is essential to prevent deterioration.
B. Angry client dissatisfied with the room and demands to speak to the unit director: While addressing patient concerns and complaints is important for patient satisfaction and communication, this situation is non-urgent and does not pose an immediate threat to the client’s physiological stability.
C. Status post-surgical client complaining of pain 4/10 at a large incision site: Moderate pain requires timely management to promote comfort and recovery; however, it does not indicate an immediate life-threatening condition. Pain management is important but secondary to acute chest pain.
D. Client admitted with a bowel obstruction who has nausea and vomiting: Nausea and vomiting need assessment and intervention to prevent complications such as dehydration, but unless accompanied by signs of hemodynamic instability or electrolyte imbalance, this is less urgent than acute chest pain signaling potential cardiac compromise.
Correct Answer is B
Explanation
A. "Client found on floor despite repeated reminders to use call light. No injuries noted. Soft wrist restraints applied per provider orders.": Documenting the use of restraints without clear justification or physician orders specific to fall prevention may imply inappropriate use, and this wording also introduces judgment about the patient’s behavior (“despite repeated reminders”), which is not objective or professional documentation.
B. "Client discovered lying on floor in room. Provider called to bedside. No injuries noted. Client returned to bed with bed alarm on, call light in reach.": This entry objectively describes the event, the immediate clinical response, and the interventions implemented to prevent recurrence. It avoids judgmental language and focuses on factual, patient-centered actions, aligning with professional standards for incident documentation in nursing notes.
C. "Client fell out of bed. Provider notified. No apparent injuries. Client reminded to use call light. Side rails up x 4.": While factual, this documentation includes assumptions (“fell out of bed”) and focuses more on restraint or safety devices rather than emphasizing objective observation and immediate care. “No apparent injuries” is slightly less precise than “no injuries noted” in clinical reporting.
D. "Client discovered out of bed on the floor after side rails left down. Client not injured. See incident report.": Including blame or speculative cause (“after side rails left down”) is inappropriate for nursing progress notes, which should remain objective and free from judgment. Referring to an incident report without documenting the nursing assessment and immediate interventions provides incomplete information for continuity of care.
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