US Physics Ch 22 & 23

What percentage of sonographers are thought to experience musculoskeletal pain related to work? 20% 40% 60% 80%

80%

Which of the following provides the basis for informed consent? Notice A contract Beneficence Autonomy

Autonomy

Which of the following terms describes the values that the actions of healthcare provider should benefit the patient? Nonmaleficence Beneficences Justice Autonomy

Beneficence

Which of the following is the best and most appropriate action of a sonographer? Handwashing before an exam Handwashing after an exam Handwashing before and after an exam Using sterile technique during an exam

Handwashing before and after an exam

Which of the following terms is defined by avoidance of unnecessary risk arm or needless injury? Nonmaleficence Beneficences Justice Autonomy

Nonmaleficence

Guidelines to minimize the risk of healthcare workers to contract the blood-borne infections have been developed. What are these guidelines called? OSHA guidelines Standard precautions Beneficence Best practice

Standard precautious

Which of the following statements are true of a tissue equivalent phantom? (more than one maybe correct) a. it has same propagation speed as that of soft tissue b. it attenuates US at rate similar to soft tissue c. embedded in it are solid masses & cystic structures d. it is the device of choice for quality assurance studies

all are true

Which modes of doppler may be assessed w/ a doppler phantom? a. color flow doppler b. pulsed doppler c. power mode doppler d. continuous wave doppler e. all of the above

all of the above

When can a patient revoke consent? Prior to the start of the procedure Four hours prior to the procedure At any time, even during the procedure Nevr

at any time even, during the procedure

Following the revocation of consent, when should a sonographer terminate the exam? Immediately After all of the diagnostic information is obtained After the physician is notified At the first opportunity when it is safe

at the first opportunity when it is safe

What form of resolution is evaluated by visualizing closely spaced pins that are parallel to sound beam's main axis? a. lateral resolution b. axial resolution c. temporal resolution d. elevational resolution

axial resolution

A patient arrives at the ultrasound department. The patient does not have a wristband and is sedated. What should the sonographer do? Call the nurse Perform the study Cancel the study Reschedule the study

call the nurse

All of the following are characteristics of a tissue equivalent phantom except: a. speed of sound similar to that in soft tissue b. attenuation properties similar to that of soft tissue c. scattering characteristics similar to that of soft tissue d. density similar to that of soft tissue

density similar to that of soft tissue

What is the study of the relationship between a worker and her environment called? Pathology Psychology Ergonomics Best practice

ergonomics

True or False: Quality Assurance evaluations of US systems can only be performed by biomedical engineers or physical scientists.

false

True or False: Quality Assurance evaluations of US systems should be performed weekly.

false

True or false? A Patient only communicates in a foreign language, it is acceptable to speak to a bilingual family member and obtain consent from the relative.

false

True or false? A sonographer with advanced practitioner status can provide her impression of a study to the patient.

false

True or false? Informed consent must always be obtained from the patient.

false, if patient does not have the capacity to provide consent, a legal guardian can provide consent.

What is the first action of sonographers upon entering a patient's room? Introduce themselves to the patient Plug in the ultrasound system Check the patient's wristband Wash their hands

introduce themselves to the patient

Which of these terms is not associated with informed consent? Describing reasonable alternatives The patient's acceptance Evaluation of the patient's understanding Justice

justice

What form of resolution is evaluated by measuring the width of reflections arising from small, point targets? a. lateral resolution b. axial resolution c. temporal resolution d. elevational resolution

lateral resolution

All of the following can reduce workplace injuries except: Patient scheduling Proper use of equipment Educational programming Patient positioning None of the above

none of the above, all of these choices can reduce the incidence of workplace injury

What standard is best used in quality assurance program? a. subjective b. expert c. objective d. legislative

objective

At what interval should quality assurance evaluations be preformed? a. weekly b. daily c. routinely d. periodically

routinely

Which of the following is least likely to make a patient experience a loss of dignity? Advanced age Sickness Lack of privacy Sedation

sedation

All of the following may be used to evaluate doppler systems except: a. tissue equivalent phantom b. moving belt phantom c. vibrating string phantom d. doppler phantom

tissue equivalent Phantom

True or False: Proper quality assurance programs require the assessment of every transducer used in clinical laboratory.

true

True or false? A patient only communicates in a foreign language. It is acceptable to have a bilingual family member serve as an interpreter, speak to the patient, and obtain consent for the patient.

true