3 Flashcards
what is an appropriate dose of reversal of neuromuscular blockade of rocuronium in an infant?
neostigmine 50 mcg/kg
pyridostigmine 1 mg/kg
edrophonium 50 mcg/kg
physostigmine 1 mg/kg
neostigmine 50 mcg/kg
hyperthermia is a core temp abive
38 C or 100.4 F
what spinal segments supply pns innervation to the uteters
s2-s4
first stage of labor is usually confined to what dermatomes
t10-L1
most common causative diagnosis for patients needing renal transplant
dm
what is the most potent stimulus for pulmonary vasoconstriction
hypoxia
what lab change is most specific for hepatobiliary obstruction
5 nucleotidase elevation
what lab result is consistent with glycogen storage disease
metabolic acidosis
what do you do abut the K level with hyperaldosteronism
it causes hypokalemia-> spirnolactone
MS- which is true?
-exacerbation with inc in body temp
-excessive accumulation of myelin
-neuropathy due to demyelination of the peripheral nerves
-rapid progression in pt dx after 35
exacerbation with inc in body temp
mediastinoscopy can result in decreased blood flow through which vessel
r verterbral artery
what increases the risk of sudden bradycardia with strabismus surgery
hypoventilation -> hypercapnia
what would you expect to see in a patient changing from erect position to supine
decrease in peripheral vasc resistance; inc in co
which is not true about emphysema and bronchitis?
A. bronchitis and emphysema are both forms of COPD
B. emphysema is associated with elevated hct
c. bronchitis is associated with copious suputum production
d. emphysema is associated with decreased elastic reccoil of lungs
B
what is the role of principal cells in cortical collecting duct?
secreting potassium
true about hpv:
A. onset and resolution are slow
B. triggered by arterial hypoxemia
C. may be inhibited by verapamil
D. diffuse effect throughout the entire pulmonary vasculature
-it occurs and resolves quick
-due to ALVEOLAR hypoxia
-may be inhibited by CCB, nitrates and inhaled anesthetics
approx how many L of oxygen does an E cylinder contain?
660
where is the majority of Na reabsorbed in the nephron
proximal convoluted tubule
AANA code of ethics mandates CRNA accept responsibility conferred by the:
state, profession and society
fully soaked lap holds
100-140 of blood
which of the following is more likely to produce the pumping effect in an anesthetic vaporizer
oxygen flush valve
when monitoring evoked potentials, the delay in response to a stimulus is known as the
latency
sns innervation to gi tract arises from the
t5-L2 segments
what nerve fiber is most resistant to blcok
a alpha
before installing a new oxygen gas cylinder onto the hanger yoke, you must
A. document the lot number of the cylinder in the gas supply log
B. remove the cylinder valve wrapper
C. open the cylidner fully for 2 mins to ensure that gas escapes without obstruction
D. turn the anesthesia machine off
B. remove cylinder valve wrapper
surgeon turns down the ambient temp to 60F. how does this affect deluvery of anesthetic through tec 7
A, could cause unpredictibly low output
B. coudl cause unpredictibily high output
C. it would result in either too high or too low an output
D. it would have no effect upon the vaporizer output
A. low output
tec 7 is accurate between 64 and 95F
carbon dioxide absorbent granules should be __ in size
4-8 mesh
you are preparing to anesthetize a peds pt with arnold chiari malformation. which of the following is true?
A. head extension should be avoided
B. pathology involves compression of pituitary gland
C. surgical correction typically involves parietal crani
D. it involves cephalad displacement of cerebellar vermis
extension of neck should be avoided
how much csf is normally in subarach space of spinal canal
30-80 mL
which periph nerve stimulator test requires baseline assessment before a neuromuscular blocking agent is administered for comparison
single twitch monitoring
what screening test best correlates with bleeding risk in uremic patients
bleeding time
which evoked potential monitoring modality is specific to cranial nerve VIII and is particularly useful in acoustic neuroma surgery?
brain auditory evoked potential
which of the following statements about respiratory changes during pregnancy are true?
A. airway resistance is essentially unchanged
B. functional residual capacity increases
C. minute ventilation decreases
D. dead space increases
A. airway resistance is essentially unchanged
after IV fentanyl- there is an inital rapid increase in plasma concentration of the drug from rapid decline in plasma admin. then there is a second, slower decrease in plasma concentration due to
A. metabolism by nonspecific esterases
B. redistributiion to highly perfused organs
C. excretion by the kidneys
D. redistribution to adipose tissue
D
what type of anesthesia circuit has a reservoir and requires rebreathing of all exhaled gases
closed
what surpraspinal regions contribute to the emotional and motivational aspects of pain sensation? pick 2
A. SI somatosensory cortex
b. SII somatosensory cortex
C. anterior cingulate cortex
D. insular cortex
insular cortex and anterior cingulate cortex
what is an expected side effect of acetazolamide?
acidemia and dec csf production
how long before opioids should naltrexone before opioid administration
3-7
what cells in the nephron are responsible for secreting bicarb and reabsorbing hydrogen ions in states of alkalosis
type b intercalculated cells
what is true of tec 6 des vaporizer?
a. it is heated to 27 C
b. it is made of solid copper
c. it is presurized to 2 atm
d. it is a variable bypass vaporizer
c.
it is 39 c
pressure os 1500 mmhg or 2 atm
dose of nmba for obese pt should be based on
lean body weight
what is required in a nonrebreathing circuit?
unidirectional valves
what does the composition of the inspired gas mixture a pt recieve depend on?
vaporizer dial setting
fgf rate
volume of the breathing circuit
gas absorbed by the circuit
min ventilation and co do not matter
what iv dose of amiodarone is recommended in pt with v tach that is resistant to electrical defib
300 mg
the largest identifiable and preventable cause of accidents is
fatigue
ankle brachial index of what value is indicative of peripheral vascular disease?
0.8
compared to the aortic root pressure, as the location of the arterial catheter gets mroe distal, the
A. map increases
B. sbp decreases
c. diastolic increases
d. diastolic decreases
diastolic decreases
where is the only spot that secretion of hydrogen ions and reabsorption of bicarb ions do not occur
thin segments of loop of henle
how do you attenuate the nausea with narcan administration?
admin dose over 2-3 mins
what chemical is responsible for mediating nonshivering thermogenesis in the newborn?
NE
what is true about the bain circuit?
A. it requires fgf equal to 3x the minute ventilation
b. it utilizes a small bore gas delivery tube at the patient end of the circuit
c. it is a modified mapleson A circuit
d. exhalation tubing should provide volume larger than the tidal volume to prevent rebreathing
b
plasma half life is inversely proportional to its
rate of clearance
