Browse all practice questions for the Diagnostic Medical Sonography Assistant (DMSA) 190 Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

Diagnostic Medical Sonography Assistant (DMSA) 190 Practice Test 2026 - Free DMSA Practice Questions and Study Guide course image
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  • The big toe is located in which direction relative to the pinky toe?
  • What does the term "gain" refer to in ultrasound imaging?
  • Which muscles are typically evaluated with a musculoskeletal ultrasound?
  • What position describes a patient lying on their side during an ultrasound examination?
  • Which medical professional typically performs a diagnostic ultrasound?
  • In what scenario might an abdominal ultrasound be indicated?
  • Which ultrasound control allows the sonographer to center the structure of interest on the image vertically?
  • What are potential contraindications for Doppler ultrasound examinations?
  • What is the normal range for oxygen saturation in adults?
  • Which condition can be assessed with a pelvic ultrasound in men?
  • What factor is least likely to be a consideration in ultrasound imaging?
  • What term describes a sonographic appearance with fluid and solid areas within the same mass?
  • Which imaging technique is commonly used for cardiac assessment?
  • Isolated systolic hypertension exists when the systolic pressure is above which value while diastolic pressure remains below 90 mmHg?
  • What does it mean if a sonographic structure appears darker than the surrounding tissues?
  • In an anatomical context, 'medial' means?
  • Which of the following is a risk factor for work-related musculoskeletal disorders (WRMSD)?
  • What feature allows the operator to scroll back through several seconds worth of captured frames once the image has been frozen?
  • A person lying flat on their back is in what position?
  • The propagation velocity of air is approximately _____ m/sec?
  • What is the main focus of vascular sonography?
  • How does an ultrasound technician assess the abdomen for aortic aneurysms?
  • What is the main focus of using a linear transducer in ultrasound exams?
  • Which imaging technique enhances tissue contrast and helps in differentiating between structures?
  • Which two factors determine the speed of sound through a structure?
  • In terms of anatomical orientation, the nose is located in which direction relative to the chin?
  • What do we call ultrasound images that have clear outlines and well-defined borders?
  • What is a common preventive measure against WRMSD?
  • What is the purpose of a sonographic exam of the gallbladder?
  • The term 'caudal' refers to a structure being located in which direction?
  • Which ultrasound mode provides the most detailed representation of an organ's structure?
  • Which of the following best describes a proximal location?
  • What is the primary focus of the HIPAA regulations?
  • What is the purpose of using ultrasound contrast agents?
  • What is the term for the arm position that should be minimized by sonographers to reduce strain?
  • Which structures are typically examined in a carotid ultrasound?
  • What is the advantage of using high-frequency ultrasound?
  • Scattering refers to what phenomenon in ultrasound imaging?
  • What does the term "acoustic impedance" refer to in ultrasound?
  • Who is responsible for controlling your work posture and behavior?
  • What is the purpose of color Doppler ultrasound?
  • Which term refers to a plane that divides the body into superior and inferior parts?
  • Which measurement is commonly used in obstetric ultrasound to estimate fetal age?
  • What is the role of gel in diagnostic ultrasound?
  • What physiological parameter is most commonly measured during an annual check-up?
  • What does "real-time imaging" allow in sonography?
  • What does the term "transabdominal" refer to in ultrasound?
  • In the anatomical position, how are the thumbs positioned in relation to the pinky fingers?
  • What type of imaging could be beneficial for examining swelling in soft tissues?
  • What type of pathology is rarely identified by breast ultrasounds?
  • Are hazardous wastes allowed to be disposed of in any trash container inside a healthcare facility?
  • Which frequency offers better resolution definition in ultrasound imaging?
  • What is the primary purpose of diagnostic medical sonography?
  • What is considered the normal adult range for pulse rate?
  • What is the role of a transducer in sonography?
  • What does a Doppler ultrasound help diagnose in pregnancies?
  • The focus should be adjusted so that it is placed at or just what?
  • In which ultrasound mode is the amplitude of returning echoes visualized as a function of depth?
  • What is the impact of patient obesity on ultrasound imaging?
  • What term describes the loss of sound energy?
  • Low dynamic range has high contrast, whereas high dynamic range shows more shades of gray and what?
  • When moving a patient who has a urinary catheter, where should the catheter be kept?
  • For which purpose is a phased array transducer primarily used?
  • How does real-time imaging benefit the biopsy process?
  • How does ultrasound help guide biopsies?
  • A person lying on their right side is in which position?
  • Who discovered piezoelectricity?
  • Which organization is dedicated to advancing ultrasound in medicine and research?
  • Which agency is responsible for the accreditation of ATA College?
  • When taking blood pressure, what does the first sound heard represent?
  • What does the term "focal zone" refer to in ultrasound?
  • What is the typical post-exam protocol for patients after an ultrasound?
  • Is it true that a patient has the right to refuse treatment?
  • What is an essential aspect of creating a safer working environment for sonographers?
  • Can violators of HIPAA face civil and criminal penalties?
  • Is the examination area irrelevant to the development of WRMSD in sonographers?
  • In a renal ultrasound, what are sonographers primarily evaluating?
  • In anatomical terms, how is the head positioned relative to the shoulders?
  • What are artifacts in ultrasound imaging?
  • Which frequency range is most commonly associated with Doppler ultrasound?
  • When scanning a structure in the transverse plane, which direction are we scanning through?
  • Which agency is responsible for the registration that includes SPI and specialty exams in Diagnostic Medical Sonography?
  • What type of transducer is used for OB/GYN and abdomen exams?
  • What position is a person in when lying on their stomach?
  • What is a common use for a thyroid ultrasound?
  • What principle primarily defines the direct relationship between frequency and resolution in ultrasound imaging?
  • What control can assist in tissue differentiation or fill in fluid-filled structures in ultrasound imaging?
  • What element is often included in assessing the risk for WRMSD?
  • Is it true that a sonographer will always have direct supervision from a physician?
  • What scan plane divides the body into right and left sides?
  • Which of the following practices could help mitigate the risk of WRMSD for sonographers?
  • To reduce risk, what type of support might employers provide to sonographers?
  • True or False: Continuous repetitive motion can contribute to WRMSD.
  • Which structure is primarily assessed with a transvaginal ultrasound?
  • What is the typical frequency range for diagnostic ultrasound?
  • What does B-mode stand for in ultrasound imaging?
  • The spine is positioned in which direction relative to the umbilicus?
  • Which of the following best describes high dynamic range imaging?
  • Which term describes a structure or lesion with a "bumpy" border, resembling a bunch of grapes?
  • What type of transducer is typically used for superficial structures and vascular exams?
  • What are the four quadrants of the abdomen?
  • What is the term for the sagittal plane in sonography?
  • Which of the following is NOT a factor in the development of WRMSD?
  • Is it necessary to report persistent pain to your employer?
  • What does the term "resolution" refer to in ultrasound imaging?
  • What advantages does 3D ultrasound offer?
  • The elbow is positioned in which direction relative to the hand?
  • What does the abbreviation HIPAA stand for?
  • Which scan plane is perpendicular to the sagittal plane?
  • What are the common types of non-invasive ultrasound procedures?
  • What characteristic defines a lobulated lesion?
  • Which of the following best describes a hypoechoic lesion?
  • Which transducer type is usually best for imaging deep structures?
  • What is the sonographic appearance of a structure that is black with no internal echoes?
  • What is the term for the phenomenon where physical pressure applied to a crystal creates an electrical potential?
  • What effect does increased focal depth have on ultrasound imaging?
  • How is the position of a person lying on their left side referred to?
  • Which patient position is often preferred for abdominal ultrasound examinations?
  • Which transducer is primarily used for cardiac exams?
  • What phenomenon occurs when an ultrasound pulse encounters an interface between tissues with different acoustic impedances?
  • Does diagnostic medical sonography emit ionizing radiation?
  • How does Doppler ultrasound function?
  • To which number on the blood pressure dial should you inflate the cuff to accurately assess blood pressure?
  • What does "resolution" in ultrasound specifically refer to?
  • What is a significant consequence of ignoring pain and discomfort at work?
  • Which of the following indicates a mass with posterior enhancement in sonography?
  • In ultrasound, the speed of sound is primarily affected by which two properties of the medium?
  • What is considered the most important weapon against the spread of infection?
  • What are "dummy bumps" in the context of ultrasound examinations?
  • Are exam presets helpful in optimizing images during an ultrasound exam?
  • Which of the following factors can affect ultrasound imaging quality?
  • What is the normal oral temperature range for an adult?
  • According to research, what percentage of sonographers experience pain while scanning?
  • What does a sonogram primarily visualize?
  • What type of ultrasound might be ordered to investigate varicose veins?
  • What additional benefit does Doppler ultrasound provide compared to traditional imaging methods?
  • What does isoechoic mean in sonographic terms?
  • What unit is used to measure the intensity, amplitude, and power of an ultrasound wave?
  • How is ultrasound fundamentally different from X-ray imaging?
  • What type of imaging is primarily performed to assess fetal development?
  • Which of the following is NOT one of the three main controls for a sonographer?
  • In anatomical terms, the feet are located in which direction relative to the shoulders?
  • What is the propagation velocity of bone in m/sec?
  • Is informed consent included in the patient's Bill of Rights?
  • Which assessment method is most efficient for identifying WRMSD risks?
  • Why is it important to use correct acoustic impedance in sonography?
  • What is the main purpose of TGC in ultrasound imaging?
  • What is typically assessed through abdominal ultrasound?
  • What is the primary purpose of a sonographer during an ultrasound examination?
  • What does WRMSD stand for in the context of sonography?
  • What common pathology might be detected in a breast ultrasound?
  • What is the order of the speed of sound in various materials from slowest to fastest?
  • The wrist is located in which direction relative to the hand?
  • What term describes compartments within a mass or fluid collection in sonography?
  • Why might a sonographer perform an abdominal ultrasound on an emergency basis?
  • What are the three main types of ultrasound modes?
  • What is the purpose of minimizing risks related to WRMSD?
  • Identifying the risk of WRMSD can help in creating which of the following?
  • What are the three primary controls a sonographer must adjust at all times?
  • What property of sound waves is affected by changes in density of the medium?
  • What does WRMSD stand for in the context of sonography?
  • Which of the following is a common use of Doppler ultrasound?
  • Which term refers to a solid lesion in sonography?
  • How would you describe a single structure or organ that is not uniform in texture or composition in ultrasound?
  • Why are high-resolution images essential in diagnostic scanning?
  • What is the typical patient preparation required for an abdominal ultrasound?
  • When might a sonographer use a non-linear imaging technique?
  • What could indicate abnormal blood pressure readings?
  • How often should employers perform assessments to identify risk for WRMSD's related to the sonographers environment?
  • What term is used to describe the direction toward the front of the body?
  • What allows accurate adjustments of returning echoes from specific depths?
  • What does WRMSD stand for?
  • Which of the following is NOT a criterion for a simple cyst?
  • What is the speed of sound in soft tissue?
  • What is the primary principle of piezoelectricity?
  • Do patients have the right to access their medical records?
  • What is the main purpose of performing a pelvic ultrasound?
  • Why is it important for employers to assess the risk for WRMSD?
  • Would decreasing the depth on the ultrasound system make the structure closer or further away?
  • What type of tissue typically has the highest speed of sound?
  • In addition to blood flow assessment, what else is vascular sonography capable of detecting?
  • What is one of the risks associated with ultrasound procedures?
  • Which of the following is NOT a risk factor for WRMSD?
  • In soft tissue, the assumed average propagation velocity is how many m/sec?
  • What are the four vital signs commonly measured?
  • What active ingredient is typically included as an ultrasound contrast agent?
  • In ultrasound, what does "motion" primarily refer to regarding temporal resolution?
  • In anatomical terms, how is the knee related to the ankle?
  • How often should ultrasound equipment be calibrated?
  • True or False: Muscles and joints can be further stressed if their support structures are weakened.
  • The temporal resolution refers to the ability of the system to accurately depict what?
  • What is a common symptom of WRMSD among sonographers?
  • What two elements must be included for high-level disinfection of applicable transducers?
  • What is the term for a propagation of energy that moves back and forth or vibrates at a steady rate?
  • What do you call the non-invasive assessment of liver stiffness using ultrasound?
  • How does the frequency of ultrasound waves affect imaging?
  • Who is credited with the discovery of echolocation?
  • Which factor should health professionals focus on to mitigate workplace injury risks?
  • What type of wave motion is primarily used in ultrasound technology?
  • Which component of vital signs is not typically measured during a routine check-up?
  • Are sonographers required to assist patients with a urinal or bedpan while in their care?
  • What type of monitoring can aid in the prevention of WRMSD?
  • What could indicate an effective WRMSD management strategy?
  • Which term refers to the bounce-back of ultrasound waves when they encounter a boundary?
  • Which role do employees have in relation to WRMSD risk assessments?
  • In sonography, what does hyperechoic refer to?
  • What does hypoechoic mean in sonography?
  • What is the role of the American Registry for Diagnostic Medical Sonography (ARDMS)?
  • In obstetrical ultrasound, which factors are assessed to evaluate fetal well-being?
  • Is the sonographer considered one of the responsible parties involved in the prevention of WRMSD?
  • What is the most crucial factor in reducing the risk of back injury among healthcare workers?
  • What type of ultrasound is mainly used for examining the heart?
  • What conclusions may a sonographer draw from observing abnormal liver echogenicity?
  • The hip bones are positioned in which direction relative to the umbilicus?
  • What control would a sonographer use to increase the brightness of the ultrasound image?
  • Diagnostic ultrasound operates at sound frequencies between which values?
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