A nurse is planning to obtain a client's oxygen saturation. Which of the following might influence the result of this test?
The client has a fever.
The client has an elevated hemoglobin level.
The client is wearing a ring.
The client is wearing nail polish.
The Correct Answer is D
Rationale:
A. A fever may influence the result of an oxygen saturation test but is not a direct factor.
B. An elevated hemoglobin level is unlikely to influence the result of an oxygen saturation test.
C. Wearing a ring is unlikely to influence the result of an oxygen saturation test.
D. Wearing nail polish can interfere with the accuracy of pulse oximetry readings by causing an inaccurate reflection of light, leading to a falsely low oxygen saturation reading.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Cleanse the wound with cotton balls – Cotton fibers can shed and leave debris in the wound, increasing the risk of infection. Gauze or irrigation is preferred.
B. Use a 10-mL syringe filled with cleansing solution – A 10-mL syringe does not provide sufficient pressure for effective irrigation. A 30- to 60-mL syringe is typically recommended.
C. Hold the syringe tip 2.5 cm (1 in) above the upper end of the wound – This ensures appropriate pressure and prevents contamination while effectively flushing out debris.
D. Dry the wound bed with gauze squares – The wound bed should be kept moist to promote healing; only the surrounding skin should be dried if necessary.
Correct Answer is B
Explanation
Rationale:
A. Allowing sterile forceps to rest in a container of sterile does not affect the sterility of the field.
B. Pouring sterile solution with the bottle held over the field is an inappropriate technique since it breaches the sterility of the field.
C. Placing unnecessary sterile items on the field is not ideal, but it does not indicate contamination of the surgical field.
D. The handle of a pair of sterile scissors resting 5 cm (2 in) from the field's edge does not indicate contamination of the surgical field. The scissors should be placed within easy reach of the nurse but should not touch non-sterile items.
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