VT Patient Care & Safety 3 — Questions and Answers
Question 1: Which standard precaution must be maintained when performing a vascular ultrasound on a patient with an unknown infection status?
- Treat every patient as potentially infectious and use appropriate PPE (Correct answer)
- Use precautions only when blood or body fluids are visible
- Request infection status from the ordering physician before proceeding
- Wear a full gown and N95 mask for every vascular exam
Correct answer: Treat every patient as potentially infectious and use appropriate PPE
Standard precautions require treating all patients as potentially infectious regardless of known diagnosis.
Question 2: A patient becomes syncopal during a carotid duplex exam while supine. What is the immediate priority intervention?
- Elevate the head of the table to 30 degrees
- Place the patient in Trendelenburg position and call for help (Correct answer)
- Administer oral fluids immediately
- Resume scanning after a 2-minute rest
Correct answer: Place the patient in Trendelenburg position and call for help
Trendelenburg (legs elevated, head lowered) improves cerebral perfusion and should be followed by activating emergency assistance.
Question 3: The Joint Commission's Universal Protocol requires a 'time out' before invasive vascular procedures. Which element is NOT part of the time out?
- Confirmation of patient identity
- Verification of the correct procedure site
- Review of the patient's insurance information (Correct answer)
- Confirmation of the correct procedure
Correct answer: Review of the patient's insurance information
The Universal Protocol time out addresses patient identity, procedure, and site—not billing or insurance information.
Question 4: During an intraoperative duplex scan in a sterile field, the technologist accidentally touches an unsterile surface. What is the correct response?
- Continue the scan and report the break after the procedure
- Immediately inform the surgical team and replace contaminated equipment (Correct answer)
- Re-clean the touched surface with alcohol wipes
- Remove the sterile drape and rescrub independently
Correct answer: Immediately inform the surgical team and replace contaminated equipment
Any break in sterile technique must be reported immediately so the surgical team can take corrective action to prevent infection.
Question 5: Which ergonomic practice best reduces the risk of repetitive strain injury for vascular technologists during prolonged scanning sessions?
- Holding the transducer with maximum grip force to maintain stability
- Adjusting monitor height and patient table to minimize arm abduction above 30° (Correct answer)
- Completing all exams without breaks to avoid losing scanning rhythm
- Leaning over the patient to get closer to the imaging site
Correct answer: Adjusting monitor height and patient table to minimize arm abduction above 30°
Keeping the arm below 30° of abduction and setting equipment at ergonomic heights significantly reduces musculoskeletal strain.
Question 6: A patient with claustrophobia refuses to remain still during a lower extremity venous exam. What is the best first approach?
- Restrain the patient to complete the study quickly
- Explain each step calmly, allow pauses, and use distraction techniques (Correct answer)
- Reschedule the patient for sedation-assisted imaging
- Document patient non-compliance and end the exam
Correct answer: Explain each step calmly, allow pauses, and use distraction techniques
Calm communication, step-by-step explanation, and brief pauses often alleviate anxiety and allow most patients to complete the study.
Question 7: When is it appropriate for a vascular technologist to apply a tourniquet to augment venous filling during upper extremity venous mapping?
- Only when ordered by the supervising physician and applied at the correct anatomical site (Correct answer)
- Routinely on every patient to improve image quality
- Whenever the technologist judges it necessary without physician input
- Never; tourniquets are contraindicated in all vascular studies
Correct answer: Only when ordered by the supervising physician and applied at the correct anatomical site
Tourniquets used as venous occlusion devices require a physician order and correct placement to avoid nerve or vessel injury.
VT Patient Care & Safety 3
Which standard precaution must be maintained when performing a vascular ultrasound on a patient with an unknown infection status?