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NUNA3 CV TEST 3
NUNA3 CV TEST 3 on studystack.com
| Question | Answer |
|---|---|
| the two vertebral arteries ascend to form the ____ artery in circle of willlis | basilar |
| the basilar artery branches into the two ___ ___ arteries. | posterior cerebral arteries |
| as the internal carotid artery enters the circle of willis it becomes what artery? | middle cerebral |
| the int. carotid/middle cerebral artery is connected to the post cerebral artery by what artery? | the post communicating artery |
| what artery branches from the int. carotid/middle cerebral and proceeds anteriorly? | the anterior cerebral artery. |
| what artery connects the two anterior cerebral arteries? | the anterior communicating artery |
| as previously stated, the int. carotid becomes the middle cerebral artery but also branches into what other arteries? | anterior cerebral and post communicating |
| what are three absolute indications for OLV? | to avoid contamination of non-diseased lung, conrol of ventilation, VATS |
| what are some indications for isolation of one lung for ventilation? | hemorrhage, infective secretions, fistulae, bullae, surgical exposure, vent support with large lung discrepancies. |
| what are some relative contraindications for OLV? | full stomach, hypoxia, and anticoagulated pt. |
| vocal cord to carina length in males is approx. ___cm | 12.7 |
| vocal cord to carina lenght females is approx. ___cm. | 12.1 |
| the right mainstem is approx. __mm diameter and the left main approx. ___mm diameter. | right dia 16mm left dia 13mm |
| mean lenght of rt main is __ to __ mm | 19-22 |
| mean lenght of lt main is __ to __mm | 48 (+ or - 8mm_ |
| which two OLV devices mandate use of bronchoscopy to place? | univent and bronchial blockers |
| which OLV device could be placed with only laryngoscopy and auscultation? | Carlens DL ET |
| when placing OLV device, usually view the ___ first with bronchoscopy, then switch to ___to confirm position | first trachea, then bronchus |
| males less than 5'10" use what size DL ET tube? Greater thatn 5'10" | 39 for less than 5'10" and 41 for greater. |
| for females less than 5'2" use ___ fr DL ET and for taller use ___ fr. | less than 5'2" use 35, taller use 37. |
| once placed, the avg. depth of DL ET tube at incisors is ___ cm. | 29 |
| T or F. with the DL ET you can access both lungs? | true |
| the bronchial blocker requires a larger volume to seal its' cuff than the DL ET. T or F. | true, 4-8ml vs 2-3ml |
| which bronchial isolater can be used in children over 6 yr. and is available in sizes small as 3.5 and 4.5 mm ? | bronchial blocker |
| bronchial blockers are passes alongside or through the ET tube. t or f? | true |
| what are some disadvantages to both the bronchial blocker and univent tubes? | higher flow resistance, need bronchoscopy to place, unable to access both lungs, not for long term single lung ventilation |
| for a right lung resection you would use a (left/right) DL ET? | left |
| if you know that you are doing a left pneumonectomy prior to incision, place a (right/left) DL ET. | use a right |
| if you have a left DL ET in place, what must you do if decision is made to do left pneumonectomy during surgery? | withdraw until distal bronch lumen is proximal to carina (approx 25cm), use as single lumen tube |
| for pulmonary hemmorrhage, you could insert a ____ type of lung isolation tube since you may not need bronchoscopy | DL ET |
| most common tube used for bronciopleural fistual is the ____ tube. | DL ET |
| for bullae and cysts one would avoid which gas, and what type of ventilation would you avoid if possible. | avoid nitrous and avoid positive pressure if possible |
| FEV1 stand for what measurement of lung function? | volume of air expired in first second of max expiration |
| a normal FEV1/FVC value is >____ | >0.7 is normal |
| the normal FEV1 is greater or equal to __. | 2 |
| the miniumum FEV1 necesary for a pneumonectomy is ___. | greater than 2 |
| the minimum FEV1 necessary for a lobectomy is -___. | greater than 1 |
| which bronchoscope, rigid or flex., is preferred when airway occluded, and may provide better pediatric control and visulaization | rigid |
| a mediastinoscopy is primarily used for what purpose? | staging of lung cancer |
| where is the scope for mediastinoscopy inserted? | suprasternal notch |
| what nerve could possibley be damaged with a mediastinoscopy? | recurrent laryngeal n. |
Created by:
marcusgone
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