Random Flashcards
α- angle increased
expiratory outflow obstruction:
-COPD
- bronchospasm
- kinked ETT
β- angle increased
rebreathing CO2 from faulty inspiratory valve
α- vs. β- angle
delay of non-cardiac surgery after balloon angioplasty
14 days
delay of non-cardiac surgery after bare metal stent placement
30 days
delay of non-cardiac surgery after drug eluding stents
12 months
WAG for nitrous used with oxygen
25 ppm
WAG for anesthetic agent plus oxygen
2 ppm
WAG for anesthetic agent and Nitrous Oxide
0.5 ppm
what is recommended maximum leakage current
10 microamperes (uA)
Refers to relatively small currents applied directly to the myocardium in susceptible patients
microshock
what shock will cause vFib
100 mA of macroshock
what is a LIM used for
Monitors integrity of an IPS. If it detects that the system is no longer isolated, it alarms. The potential current flow threshold monitored for is between 2-
5mA. This monitor aims to alert individuals to risk of shock and does not itself prevent macroshock.
what is IPS used for
Used in OR. No direct electrical connection to the ground due to isolation transformers. Touching a faulty piece of equipment does not result in shock but coverts the IPS to a grounded system. A second faulty piece of equipment would need to be present to be at risk of macroshock.
____________ is maximum harmless current
5 mA
murmur radiating to carotids
aortic stenosis
abnormal rhythm or gallop
heart failure
presence of bruits over carotid
needs further work up for stroke risk
1 MET
4 METs
10 METs
participation in strenuous sports like swimming, singles tennis, football, basketball or skiing
Elective surgery should be delayed for DBP
> 110mmHg
reinfarction rates
- Mortality rate is over 50%
- MI within 3 months or less = 30% incidence
- MI within 3-6 months = 15% incidence
- MI greater than 6 months = 6% incidence
blood sugar goals for cardiac and non-cardiac surgery
- Cardiac surgery= maintain sugar 80-100 mg/dL
- Non-cardiac surgery= maintain sugar <200mg/dL
inhibition order in local anesthetics
autonomic ➔ sensory ➔ motor
absolute vs relative contraindications to neuraxial
nipple line
T4
xiphoid process
T6
umbilicus
T10
____________ weeks of smoking cessation is needed to decrease the incidence of post-operative complications.
4-8 weeks
