POCUS QUIZ
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20 questions
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- Q1Sonographically, arteries tend to be:Thin-walledPulsatileAll is correctCollapsible30s
- Q2In the pericardial view:RV or RA collapse may occur in an otherwise normal patientA little pericardial fluid may be completely normalScans may be enhanced by obesity and pneumoperitoneumImaging typically worsens when the patient takes a deep breath30s
- Q3The amount of reflection is proportional to the difference in the acoustic impedance between the two mediaTrueFalse30s
- Q4Select the most appropriate transducer for an abdominal aortic aneurysm ultrasound examinationLinear transducer (8-12MHz)Curvilinear transducer (3-5MHz)Sector transducer (6-9MHz)Annular array (4MHz)30s
- Q5The velocity of ultrasound waves in the human body is:Almost constant in soft tissueDependent on frequencyIrrelevant to modern day ultrasound machinesVariable by less than less than 10% through different body tissues30s
- Q6The reflection coefficient between air and water is:1%90%50%Nearly 100%30s
- Q7Which of the following is not a means of attenuation?ReverberationAbsorptionReflectionScatter30s
- Q8Regarding the frequency of ultrasound waves in tissues. Which is correct?Lower frequency waves are best for viewing fine detailFrequency is inversely proportionate to wavelengthIncreasing frequency will increase velocity of the sound waveIncreasing frequency will improve tissue penetration30s
- Q9What is the principle artefact that is evident in this image?Acoustic shadowing artefactComet tail artefactAcoustic enhancement artefactMirror artefact30s
- Q10Which type of ultrasound scan is this probe most appropriately used for? Please select the CORRECT response.BELSE-FASTVascular accessProcedural guidance30s
- Q11What is the principle artefact evident in this image? Please select the CORRECT response.Comet tail artefactAcoustic enhancement artefactDrop out artefactAcoustic shadowing artefact30s
- Q12The time gain compensation (TGC) control, compensates for? Please select the CORRECT response.The difference in ultrasound speed in different body tissuesThe video image display lag timeAttenuation deficitsThe time take to undertake the scan30s
- Q13Which of the following is least likely to improve a suboptimal US image?Changing the focal point of the transducerMoving the patientAltering the angle of the transducerTurning the overall gain up to maximum30s
- Q14Which step will most improve image resolution? Please select the CORRECT responseReducing the frequencyIncreasing the depthIncreasing the frequencyMoving your point of interest to the lower part of the screen30s
- Q15A 72 year old gentleman with a known abdominal aortic aneurysm (AAA) is brought in by ambulance to your ED with sudden onset of right sided flank pain. You decide to perform an urgent USS to assess the AAA? Please select the CORRECT response.An AAA is diagnosed when the diameter exceeds 25mmUltrasound is not the appropriate investigation to determine if there has been a leak of this gentleman’s AAA.Most AAAs are above the level of the renal arteriesUltrasound is sensitive for diagnosis of a retroperitoneal haematoma30s
