The nurse attaches a pulse oximeter to a client’s finger and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
Capillary refill time is 2 seconds.
2+ edema of fingers and hands.
Radial pulse volume is 3+.
Blood pressure is 142/88 mm Hg.
The Correct Answer is B
Choice A rationale
Capillary refill time is 2 seconds. A capillary refill time of 2 seconds is within normal limits and is unlikely to affect the accuracy of the pulse oximetry reading.
Choice B rationale
2+ edema of fingers and hands. Edema can interfere with the accuracy of pulse oximetry readings by affecting the perfusion of the area where the sensor is placed. This can lead to falsely low oxygen saturation readings.
Choice C rationale
Radial pulse volume is 3+. A strong radial pulse indicates good peripheral perfusion, which should not negatively impact the accuracy of the pulse oximetry reading.
Choice D rationale
Blood pressure is 142/88 mm Hg. While elevated blood pressure can have various effects on the body, it is not likely to directly affect the accuracy of a pulse oximetry reading.
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Correct Answer is A
Explanation
Choice A rationale
Starting to collect the specimen with the next void is the correct action. The 24-hour urine collection for creatinine clearance should start with an empty bladder. The first urine of the day is discarded, and the time is noted.
Choice B rationale
Beginning the collection the next day is unnecessary and would delay the process. It is important to start the collection as soon as possible to avoid further delays.
Choice C rationale
Observing the sample for sediment is not relevant to the collection process. The focus should be on starting the collection with the next void.
Choice D rationale
Emptying the sample into the 24-hour container is incorrect because the first urine sample should be discarded to ensure accurate results.
Correct Answer is B
Explanation
Choice A rationale
Initiating a fall risk protocol is not necessary when the client demonstrates an upright posture and a smooth, steady gait. Fall risk protocols are typically initiated when there are signs of instability or a history of falls.
Choice B rationale
Recording the client’s ability to perform ADLs safely is the appropriate action. This documentation provides a baseline for the client’s functional status and helps in planning further care. It also ensures that the client’s current abilities are noted for future reference.
Choice C rationale
Determining the client’s activity tolerance is important but not the immediate next step after observing a smooth and steady gait. This assessment can be done later to evaluate the client’s endurance and capacity for physical activities.
Choice D rationale
Teaching the client to shorten the stride to prevent falls is unnecessary when the client’s gait is already smooth and steady. This advice is more relevant for clients who show signs of instability or a tendency to fall.