A nurse is using a Doppler ultrasound stethoscope to assess the pedal pulses of a client who has peripheral vascular disease. Which of the following actions should the nurse plan to take?
Exert firm pressure when placing the probe.
Apply the probe to the exterior aspect of the ankle.
Move the probe until a whooshing sound is present.
Hold the probe at a 30° angle to the blood vessel.
The Correct Answer is C
Choice A rationale:
Exerting firm pressure when placing the probe (Choice A) is not recommended because it can potentially compress the blood vessels and impede blood flow. This can lead to inaccurate readings and compromise the assessment of the pedal pulses in a client with peripheral vascular disease.
Choice B rationale:
Applying the probe to the exterior aspect of the ankle (Choice B) is not the standard approach for assessing pedal pulses. The pedal pulses are typically assessed on the dorsal (top) and posterior (back) aspects of the foot, as well as the lateral (side) aspects of the ankle. Placing the probe on the exterior aspect of the ankle might not yield accurate results.
Choice C rationale:
Moving the probe until a whooshing sound is present (Choice C) is the correct action when using a Doppler ultrasound stethoscope to assess pedal pulses. The whooshing sound, known as "Doppler sound," indicates the presence of blood flow. The nurse should gently maneuver the probe until this sound is heard, allowing for an accurate assessment of the pulses and blood flow status.
Choice D rationale:
Holding the probe at a 30° angle to the blood vessel (Choice D) is not a standard practice for assessing pedal pulses with a Doppler ultrasound stethoscope. The nurse should place the probe directly over the pulse site and adjust its position until the Doppler sound is detected.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Using a 5-mL syringe to flush the catheter is not the best choice. Central venous access devices typically require a larger syringe for flushing to prevent excessive pressure and potential damage to the catheter. A smaller syringe like the 5-mL syringe can create higher pressure, which could cause complications.
Choice B rationale:
Changing the site dressing and stabilization device every 24 hours is not the recommended practice. The dressing and stabilization device should be changed according to facility policy and as needed, but a rigid 24-hour schedule is not necessary and might increase the risk of infection due to unnecessary exposure.
Choice C rationale:
Expecting blood to appear in the catheter lumen after flushing is incorrect. Blood in the catheter lumen after flushing could indicate complications such as a dislodged catheter or other issues requiring immediate attention. The catheter should ideally remain patent without the presence of blood.
Choice D rationale:
This is the correct choice. Using chlorhexidine solution to clean the catheter is an evidence-based practice to prevent infection at the insertion site. Chlorhexidine has broad-spectrum antimicrobial properties and helps reduce the risk of catheter-related infections.
Correct Answer is B
Explanation
Choice A rationale:
While the abbreviation "MSO4" represents morphine sulfate, it is safer to spell out the medication name to prevent misinterpretation. Also, the use of "cc" for volume and lack of clarity in timing make this option less desirable.
Choice B rationale:
(Correct Choice) This option correctly identifies the medication, includes the dose (4 mg), specifies the route (IV), indicates the timing (daily at 0900 before dressing changes), and provides instructions for dilution (5 mL of sterile water).
Choice C rationale:
Using "Q.D." is an abbreviation for "every day" and might lead to confusion due to unfamiliarity. Additionally, using "cc" instead of "mL" and lack of clarity in timing reduce the accuracy of this transcription.
Choice D rationale:
Using "MSO4" and "cc" are potential sources of confusion. Also, the abbreviation "@9 AM" might not be universally understood, and "mL" is a more appropriate unit for volume.
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