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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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