SEE Exam Flashcards
(29 cards)
Where do you place the CVP transducer?
Phlebostatic Access
Which IJ is preferred for CVC placement?
Right IJ - b/c left has the thoracic duct
What do large A-waves on a CVP tracing indicate? (3)
tricuspid/pulmonary stenosis
pulmonary HTN
decreased RV compliance
What do large V waves on a CVP tracing indicate?
tricuspid regurgitation
RV papillary muscle ischemia
pericarditis
tamponade
Where do you place a multiorifice catheter vs single orifice?
multi = 2 cm below SVC single = 3 cm above SVC
Explain the bainbridge reflex.
Located in RA and great veins
Stretch of RA –> increased HR with inspiration via vagus nerve
Where are the arterial baroreceptors located?
Aortic arch –> vagus nerve (afferent, r/t stretch)
Carotid body –> glossopharyngeal nerve “Hering’s” (afferent)
Efferent via vagus and T1-T4
Swan-Ganz RA pressure/depth
1 - 8 mmHg
20 cm
Swan-Ganz RV pressure/depth
15 - 25/ 0 - 8
30 cm
Swan-Ganz PA pressure/depth
15-25/8-15
45 cm
PCWP pressure/depth
6-12
45-50
Swan-ganz LA and LV pressure
LA = 2 - 12 LV = 100 - 140/ 0 - 12
When is PAWP > PADP
MS
alveolar pressure increased
pulmonary venous obstruction
High transducer for an A-Line =
Lower blood pressure
How much higher is invasive BP than non-invasive
20 mmHg
SV normal
60 - 90
SI normal
40 - 60
PVR normal
50 - 150 dynes
CoPP
ADBP - PCWP = 60 - 160
RBB
V1 = RSR, broad R wave V6 = qRS, broad S wave
LBBB
V1= no R wave, wide negative S wave V6= no Q wave, wide notched R wave
SA or AV nodal dysrythmias
d/t obstruction of RCA or circumflex
i.e., inferior/posterior MI
anterior MI dysrythmia
wide complex rhythms
BBB, complete heart block, mobitz type II, idioventricular
ECG electrodes
EEG electrodes
ECG = 1 mV or 1000 microvolts EEG = .1 mv or 100 microvolts
