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 C
Explanation
Choice A rationale
Tilting the pelvis forwards and backwards exercises the pelvic joints, not the hinge joints.
Choice B rationale
Turning the head to the right and left exercises the neck joints, not the hinge joints.
Choice C rationale
Bending the arm by flexing the ulnar to the humerus exercises the hinge joints, such as the elbow, which is a hinge joint.
Choice D rationale
Extending the arm at the side and rotating in circles exercises the shoulder joint, which is a ball-and-socket joint, not a hinge joint.
Correct Answer is B
Explanation
Choice A rationale
Contraction of the left pupil when light shines in the right eye is a normal consensual pupillary response and does not need to be documented in charting by exception. This finding is within normal limits and does not indicate any deviation from the expected outcome.
Choice B rationale
Basilar lung sounds that are diminished in the left lung should be documented because this finding deviates from the normal lung sounds and indicates a potential issue that needs further investigation. Charting by exception focuses on documenting abnormalities or deviations from the norm.
Choice C rationale
Active bowel sounds in the lower right quadrant are a normal finding and do not need to be documented in charting by exception. This assessment is within normal limits and does not indicate any deviation from the expected outcome.
Choice D rationale
Capillary refill of 2 seconds in the lower right foot is a normal finding and does not need to be documented in charting by exception. This assessment is within normal limits and does not indicate any deviation from the expected outcome.