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 D
Explanation
Choice A rationale
Wearing gloves to dispose of the needle and syringe is a good practice to prevent needlestick injuries and contamination. However, it does not directly indicate an understanding of standard precautions, which emphasize hand hygiene as a primary measure.
Choice B rationale
Removing the needle before discarding used syringes is not recommended as it increases the risk of needlestick injuries. Standard precautions emphasize the safe disposal of sharps in puncture-resistant containers without manipulating the needle.
Choice C rationale
Donning a face mask before administering medication is not a standard precaution for handling syringes and needles. Standard precautions focus more on hand hygiene and the use of gloves when there is a risk of exposure to blood or body fluids.
Choice D rationale
Washing hands before handling the needle and syringe is a fundamental aspect of standard precautions. Hand hygiene is the most effective way to prevent the transmission of infections and is a clear indication of understanding standard precautions.
Correct Answer is A
Explanation
Choice A rationale
Using everyday language when explaining issues is the most important action. This ensures that the information is easily understood by older adult clients. Complex medical terms and terminology may be confusing or overwhelming for them, so using plain language enhances comprehension and promotes effective learning.
Choice B rationale
Providing a very well-lit meeting space is important for facilitating communication, especially for older adults who may have visual impairments. However, it is not as crucial as using understandable language.
Choice C rationale
Speaking loudly and facing the client is important for ensuring the client can hear and understand the information. However, speaking loudly may be perceived as patronizing or disrespectful. Many older adults may have normal hearing but prefer clear and normal volume speech.
Choice D rationale
Underlining key words on the written information can be a helpful strategy for emphasizing important points, but it is not as critical as using everyday language when explaining concepts orally. Additionally, not all older adults may benefit from written information, as some may have visual impairments or difficulties reading.