CEO5 Flashcards
(23 cards)
which nerve is at risk of injury when a face mask strap is used?
facial nerve – CN7
what is the internal diameter of an anesthesia face mask connector?
22mm
what observational assessment is the best means for assessing effectiveness of bag-mask ventilation?
chest rise/fall
what is an appropriate starting rate for infusion of nitroglycerine?
0.5µg/kg/min
why is a reservoir bag included as a component of an anesthesia breathing circuit?
peak inspiratory flow demands
below what MAC level will sevoflurane not increase heart rate?
1.5 MAC
what prior surgical procedures represent a contraindication for IV catheter placement in an upper extremity
AV fistula
what prior surgical procedures represent a contraindication for NIBP measurement in an upper extremity?
axillary node dissection, mastectomy
comparing blood pressure measurements taken on an upper arm and the ipsilateral calf, how will the systolic and diastolic values compare?
systolic increases more than diastolic decreases
name one contraindication to hetastarch administration
allergy/rxn to hetastarch (hydroxyethyl starch)
ekg identification of 60-cycle interference
wavy p-q, t-p segments
when performing bag-mask ventilation in an adult, which fingers must be applied only to the bony rim of the mandible?
3 and 4
if an IV catheter is in the SVC, where is it?
superior vena cava
what is the procedure to anesthetize an AIDS pt?
routine infection control
what is the difference between an empyema and an abscess?
empyema – collection of pus within a naturally occurring cavity
abscess –collection of pus within in a newly formed cavity
calculate FRC for 70kg pt
FRC = 35ml/kg FRC = (70kg) * 35ml/kg FRC = 2450ml
calculate oxygen consumption
VO2 = (kg)^0.75 * 10
what percentage change is expected in one time constant?
63%
what percentage change is expected in two time constants?
86.5%
what percentage change is expected in three time constants?
95%
calculate alveolar ventilation
V(A) = (TV – VDanat) * RR
calculate VDanat (anatomical deadspace)
VDanat = kg*2.2 or wt(lbs)
calculate 1 time constant for nitrogen washout (70kg, VT=500, RR=10)
1T = FRC/V(A) 1T = (70*35ml/kg) / V(A) 1T = 2450ml / ((VT – VDanat) * RR) 1T = 2450ml / ((500ml - (70*2.2)ml) * 10/min 1T = 2450ml / ((500ml - 150ml) * 10/min 1T = 2450ml / (350ml * 10/min) 1T = 2450ml / 3500ml/min 1T = 0.7min
