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Diagnostic Medical Sonographer - PRN

Sanford Health · Marshfield, WI · $36.00–$49.50 an hour · Part time

Posted Jun 9, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time a patient was anxious or uncomfortable during an exam. How did you handle it?

What they are checking: Whether they show the empathy and rapport the posting asks for while still completing the exam.

How do you keep learning in sonography, and what's something you've learned recently?

What they are checking: Whether they are self-motivated to grow, which the posting names directly.

This is part-time at 20 or 24 hours. How do you keep your scanning skills sharp with fewer hours?

What they are checking: Whether they have thought about staying competent and consistent while working part-time.

What would you do

You see something unexpected during a scan, like a mass. What do you say to the patient, and what do you do?

What they are checking: Whether they stay within their scope, avoid giving a diagnosis, and make sure the radiologist knows right away.

A physician orders an exam that you think won't answer the clinical question. What do you do?

What they are checking: Whether they will raise a concern with the ordering provider respectfully instead of scanning without thinking.

About the work

Walk me through how you approach an abdominal ultrasound from start to finish.

What they are checking: Whether they follow a consistent protocol so nothing gets missed, even when the exam is routine.

How do you use your knowledge of cross-sectional anatomy to get a good image on a patient who is hard to scan?

What they are checking: Whether they can adjust their technique for body habitus and still capture diagnostic images.

How do you know an image is good enough to send to the radiologist?

What they are checking: Whether they judge their own images critically instead of leaving the reader to deal with weak studies.

A transvaginal ultrasound is ordered. How do you handle consent, chaperones and patient comfort?

What they are checking: Whether they protect patient dignity and follow policy on sensitive exams every single time.

How do you protect yourself from the repetitive strain injuries that sonographers often get?

What they are checking: Whether they use good ergonomics so they can do this work safely for years.

Practice this interview out loud.

Offer builds a real interview for this exact role at Sanford Health from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

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The full job description

As published by Sanford Health.

Sanford Health, the largest rural health system in the United States, is dedicated to transforming the health care experience and providing access to world-class health care in America’s heartland. 

 Work Shift: Varies (United States of America)

 Scheduled Weekly Hours: 0

 Compensation: Salary Range: $36.00 - $49.50



 Union Position: No

 Department Details Summary Responsible for performing ultrasounds in a professional and diagnostic manner. Uses cognitive sonographic skills to identify and record appropriate anatomical, pathological, and diagnostic images. Job Description Work Shift: Casual/PRN position with variable schedule based on candidate availability and department need. Thoroughly understand the operation of the ultrasound machine and utilize new technologies. Performs a variety of ultrasound examinations. Establishes and maintains ethical working relationships and good rapport with patients and all organizational staff. Maintains a high standard of medical ethics at all times and is self-motivated to increase the level of understanding and knowledge of the sonography field. Displays empathy, compassion, and integrity. Possesses an understanding of cross-sectional anatomy. Conducts self professionally at all times, even during moments of high stress. Assists when necessary with the maintenance of accreditation requirements and processes. Understands age-related protocols for various testing. Coordinate work with physicians or other healthcare team members, including providing assistance during invasive procedures when applicable. Supervises and train students and medical sonographers as needed. Reports and calls in-service requests on equipment when needed. Additionally, based on the facility, some Sanford markets/facility sites may expand job responsibilities to include echocardiography. Qualifications Graduate of an accredited school of Diagnostic Imaging, Allied Health Certificate/Diploma or a minimum of one year equivalent work experience is preferred. Registration in at least one of the following areas of sonography is required: Registered Diagnostic Medical Sonographer (RDMS), Registered Vascular Technologist (RVT), American Registry of Radiologic Technologists (ARRT), or registry eligible. Registry preferred within two years after hiring. If working in North Dakota and performing medical imaging or radiation therapy procedures, licensure through the North Dakota Medical Imaging and Radiation Therapy (NDMIRT) Board is required. Basic Life Support (BLS) certification within six weeks of employment and re-certification as necessary is required. For employees who provide outreach mobile services, maintenance of a valid driver’s license and good driving record is required. This may include passenger on flights and occasional overnight stays at assigned sites. Employees are held to the Sanford category driver's license policy and medical guidelines when applicable for job duties. Sanford is an EEO/AA Employer M/F/Disability/Vet. If you are an individual with a disability and would like to request an accommodation for help with your online application, please call 1-877-949-5678 or send an email to talent@sanfordhealth.org.

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