Exam 3 Flashcards
What is the SI unit of volume?
m^3
liter
How is 1 cc related to what mass?
1 cc = 1 gram
1 kg occupies what volume?
1 liter
Nasal airway bevel faces _____ _____ or _____ septum.
upside down
towards
What is a useful clinical sign that a patient’s NMB is adequately reversed to allow for safe extubation of a patient?
FiO2 and ETO2 are equal
What is the minimum time to elapse before you redose anticholinesterase? (Neostigmine)
5-7 min
What is the maximum does of Neostigmine?
0.07 mg/kg
How does a pulse oximeter determine the level of oxygenation
difference in absorbtion between red and infared light
What parts of patient are commonly assessed for oxygenation?
- nail beds
- palms
- inside of lips
- inside of eyelids
- blood is bright
Cisatricurium (Nimbex) concentration and dosage
2mg
0.1-0.15mg/kg
Most common temperature
thermistor
Train of four
2 Hz over 2 seconds
Tetany
50 Hz or 100 Hz
sustained tetany
over 5 secs
1 twitch TOF means ___% blocked
90
2 twitches TOF means ___% blocked
85
3 twitches TOF means ___% blocked
80
4 twitches TOF means ___% blocked
70-80
2nd most common type of anesthetic complication
nerve damage
Which nerve is most likely to get injured?
Ulnar
then brachial plexus
What is NMB sensory threshold for an awake patient?
4-5 mA
What is a NMB motor threshold for an asleep patient?
12-15mA
What physiologic variables affecting threshold?
Temperature
What is supermaximal stimulus threshold?
40mA
Sites for core temperature
- axilla
- tympanic membrane
- pulmonary artery
- rectal
- oral
- bladder
- esophagus
What cardiorespiratory effects occur when patient is changed from supine to steep reverse Trendelenburg?
- decrease BP
- increase HR
- decrease right atrium filling pressure
- increase Qt
- increase FRC
Twitch lasts ____msec
0.2 ms`
