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13 Cards in this Set
- Front
- Back
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In regards to the NEXUS criteria for cervical spine imaging, which of the following is incorrect ?
A. NEXUS = National Emergency X-Radiography Utilisation Study. B. It's Specificity is 35% C. It's Sensitivity for "Clinically Significant injury" = 99.6% D. No cervical Spine imaging is required if ALL of the 5 criteria are met. |
Specificity = 13%
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In regards to the Canadian C-Spine Rules, which of the following is not a High risk Feature that mandates imaging ?
A. Age > 55 B. Axial load to head C. "Any" Bicycle accident D. Extremity paraesthesia |
A.
High Risk Features : 1. Age > 65 years 2. Extremity Paraesthesia 3. Dangerous mechanism a. Fall from > 1m b. Fall > 5 stairs c. Axial load to head d. Dangerous MVA [ > 100 kph ; Rollover ; Ejection ] e. Motorcycle Accident (Any) f. Bicycle Accident (Any ) |
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Which is incorrect regarding the "Low Risk" Features of the Canadian C-Spine Rule that allows for 'Safe' Range of Movement Testing ?
A. Simple rear-end MVA B. Absence of midline neck tenderness C. Acute onset neck pain D. Ambulatory in ED. |
C. 'Delayed onset' neck pain
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List the Low Risk Features of the Canadian C-spine that allow 'safe' testing of range of movement of the neck.
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1. Simple rear-end MVA
2. Delayed onset neck pain 3. Ambulatory since accident 4. Sitting position in ED 5. Absence of Midline neck tenderness >1 of any of these = range of movement testing. Ability to rotate neck 45 degrees laterally = "cleared" of need for imaging. |
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In regards to the Canadian C-spine rules, which is incorrect?
A. The rules are more specific than the NEXUS Rules : 30 % vs 13 % B. The Sensitivity is 100% C. Inability to perform the the range of movement testing mandates 3-view imaging. D. There are 3 main High Risk" features. |
A. 42.5 % versus 13 %
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In regards to the cervical spine measurements of importance , which of the following is correct ?
A. Lateral mass displacement on PEG view of > 3mm = Likely ligament rupture. B. The pre dental space distance in Adults is greater than in Children. C. The pre vertebral soft tissue distance at C5-C7 is greater in Adults than Children. D. the Basion-dental interval is typically < 5 mm |
C. Adults : 20-22 mm
Children : 14 mm A = > 7mm for lateral mass displacement on pEG view = likely ligament rupture B = Children pre-dental space distance = 4-5 mm Adults = 3mm D = less than 12 mm |
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In regards to the Ottawa Ankle rules, which of the following is not an indication for imaging?
A. Navicular bone and base of 5th metatarsal bone tenderness B. Unable to walk 4 steps at time of injury and in the ED. C. Anterior edge the distal 6 cm either Medial or lateral malleolus D. The tip of either lateral or medial malleolus. |
C.
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In regards to the Ottawa Ankle rules, which of the following is incorrect ?
A. Patients under age 18 were not studied. B. It was Published in the NEJM 1996 C. Malleolar tip avulsion fractures are not considered Clinically significant. D. The rules remain secondary to "Clinical judgement" and "Common Sense". |
B. Annals of Emergency Medicine 1996
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In regards to the Ottawa Knee Rules, which of the following is incorrect ?
A. It has 5 components. B. Age is one criterium, being Age > 60. C. It is nearly 100% sensitive for "Clinically significant" Knee fractures. D. Unable to weight bear for 4 steps immediately AND in the ED mandates imaging. |
B. Age > 55 years
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What re the 5 Criterion of the ottawa Knee Rules?
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1. Age > 55 years
2. Unable to weight bear 4 steps at time of injury AND in the ED 3. Unable to flex knee to 90 degrees 4. Fibular head tenderness 5. Isolated Patella tenderness. |
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Which is incorrect regarding the Ottawa Knee rules.
A. It has been validated in Adults. B. It's Sensitivity is nearly 100% C. Age > 55 is on criterion for XR. D. It has not been validated in Children. |
D. It has.
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In regards to the CXR findings of Left heart Failure (LHF), what is the order of most frequent to least frequent findings ?
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1. Cephalisation
2. Cardiomegaly 3. Intersitial oedema 4. Enlarged Pulmonary artery 5. Pleural effusion 6. Alveolar oedema 7. Prominent SVC 8. Kerley B lines |
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Place the following CXR findings of Left heart failure in order from most frequent to least frequent :
Enlarged pulmonary artery Intersitial oedema Cardiomegaly Pleural effusion Kerley B lines Cephalisation Prominent SVC Alveolar oedema |
Cephalisation
Cardiomegaly Intersitial oedema Pulmonary artery enlargement PLeural effusion Alveolar oedema Prominent SVC Kerley B Lines |
