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
Knowing when the client voided following catheter removal is crucial because it indicates the return of the client’s ability to urinate after catheter removal. It helps assess urinary function and determines if the client is experiencing any urinary retention issues, which could potentially lead to complications such as urinary tract infections or bladder distention.
Choice B rationale
The time of the last dose of IV antibiotic administration is important for managing the client’s urinary tract infection, but it is not as immediately relevant as knowing when the client voided after catheter removal to assess urinary function.
Choice C rationale
Intake and output reports for the previous shift are important for assessing fluid balance and renal function, but knowing when the client voided after catheter removal takes precedence as it directly assesses urinary function and the need for further intervention.
Choice D rationale
The color of the urine during catheter removal may provide some insight into the client’s urinary condition, but it is not as critical as knowing when the client voided after catheter removal to assess urinary function.
Correct Answer is C
Explanation
Choice A rationale
Eschar and slough are indicative of necrotic tissue and are not signs of proper healing. Eschar is a dry, dark scab or falling away of dead skin, typically caused by a burn, or by the bite of a mite or other insect. Slough is a layer or mass of dead tissue separated from surrounding living tissue, as in a wound, sore, or inflammation. Both eschar and slough need to be removed for proper wound healing to occur.
Choice B rationale
Erythema and serosanguineous exudate can be present in the early stages of wound healing, but one week post-surgery, these signs may indicate inflammation or infection rather than proper healing. Erythema is redness of the skin caused by increased blood flow to the capillaries, often a sign of infection or irritation. Serosanguineous exudate is a thin, watery fluid that is slightly pink due to the presence of small amounts of blood, which can be normal immediately after surgery but should decrease over time.
Choice C rationale
A well-approximated incision site is a sign of proper healing. This means that the edges of the wound are close together and aligned, which promotes faster and more efficient healing. Proper approximation of the wound edges reduces the risk of infection and promotes the formation of a strong, healthy scar.
Choice D rationale
Beefy red granulation tissue is a sign of healing in open wounds, not in surgical incisions that are closed. Granulation tissue is new connective tissue and microscopic blood vessels that form on the surfaces of a wound during the healing process. It is typically bright red or pink and indicates that the wound is healing from the inside out. However, in a surgical incision that is healing properly, the wound edges should be well approximated, and granulation tissue should not be visible.