mock exam 7 Flashcards
the pressure inside a low pressure high volume ETT cuff is 25mmHg. is the cuff pressure too high
cuff pressure is too high and can induce mucosal damage
have to convert to cmH2O
25mmHg x 1.36cmH2O/mmHg = 34cmH2O
(normal cuff pressure is <25 cmH2O)
what does acute alcohol intoxication do in terms of GABA-A and NMDA receptors
agonizes GABA A receptors (decreases MAC) and antagonized NMDA
is acute alcohol intoxication associated with emergence delirium
no
which one represents the beta waveform associated with stage 2 anesthesia
what is secreted via adrenal cortex
aldosterone
androgens
what is secreted via zona glomerulosa, fasciculata, retirularis
salt, sugar, sex!
glomerulosa-aldosterone
fasciculata-glucocorticouds
reticularis-androgens
risk factors for pulmonary complications in the elderly following GA
slow recovery of upper aw tone
CNS response to hyperCARBIA attenuated
PNS response to hypoxia attenuated
atelectasis due to hypoventilation and VQ mismatch
what does the carotid sheath contain
common carotid
internal carotid
IJ vein
vagus nerve
how much does skin impedance increase current required to cause vfib compared with a micro shock
occurs via macro shock at 100mA and only takes 100 micro amps or .1mA
there is a 1000 fold difference
do obese people have more plasma cholinesterase
yeah apparently so.
can anemia reduce bloods ability to buffer volatile acids
yes because it reduces bloods’ ability to buffer CO2
what constituent is higher in CSF than it is in the plasma?
CO2
less protein in CSF which means less ability to buffer H+, higher amount of dissolved CO2 and decreased pH results
what is the fraction of sevoflurane leaving the vaporizing chamber of a variable bypass vaporizer at sea level?
21%
(157/760)
what mechanical events occur between S1 and S2 heart sounds
isovolumetric contraction
ejection
which BB has LA properties
propanolol
signs of excess glucocorticoid secretion include
osteoporosis, muscle weakness, hyperglycemia, weight gain, mood changes, higher risk of infection
signs of excess mineralocorticoid secretion include
HTN, Hokalemia, metabolic alkalosis
peak of morphine and heroin withdrawal
36-72h
onset of morphine and heroin withdrawal
6-18h
which 3 systemic conditions are common for both RA and SLE
restrictive lung disease
peripheral neuropathy
anemia
what does FFP contain
protein, coagulation factors, fibrinogen
when is FFP indicated
inherited factor deficiencies
PRBC transfusion of greater than 1 BV
DIC with clinical bleeding
heparin resistance d/t antithrombin deficiency
acute reversal of warfarin
liver dysfunction
tx of hereditary angioedema
use the data set to figure out how long it will take to exhaust O2 supply in the FRC of the following Female patient
height: 1.65m
weight: 130kg
FiO2 1.0
O2 consumption 375mL/min
FRC is 35mL/kg IBW
height 165cm-105cm=60kg IBW
obese: 50% reduction in FRC
2100x.5=1,050
1,050/375=2.8m
what can increase mixed venous O2 sats (aka increase SvO2)
conditions that increase O2 delivery
or decrease O2 consumption
