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Anesthetic Gases
Under pressure
"Don't Move!!!"
Manohar Monday
Location, Location, Location
100
Quality of a gas that affects the time of onset
What is Blood/gas coefficient
100
Arterial vasodilator known to cause CN- toxicity
What is Sodium Nitroprusside Prone to tachyphylaxis, attenuates hypoxic pulmonary vasoconstriction, increased cerebral blood flow
100
Patients given succinylcholine and have no return of twitches at the end of the case may have this
What is Atypical plasma cholinesterase
100
Positive response to bronchodilators in an asthma pt requires what change in FVC or FEV1
What is ? 12% AND 200 mL
100
The sciatic nerve can be found where in relation to the popliteal crease?
What is 7 cm above, at the midpoint between the tendons
200
Hypothyroidism does this to MAC values
What is has no effect
200
MOA of milrinone
What is PDE inhibition
200
Name of the local anesthetic used to diagnose plasma cholinesterase deficiency
What is Dibucaine
200
3 vent setting changes in AutoPEEP
What is Decrease TV, RR or increase exp time
200
Brachial plexus nerve commonly missed when performing an axillary block?
What is Musculocutanous: lies deep within the coracobrachialis.
300
MAC required to block adrenergic response to noxious stimuli
What is ? 1.5 (MAC BAR)
300
Name the alveolar gas equation
What is pAO2 = FiO2 (Patm - pH20) - PCO2/0.8
300
This non-depolarizing neuromuscular blocker causes increased sympathetic tone and may be prolonged in renal failure patients
What is Pancuronium
300
Name 3 of the 5 non-drug therapies listed for COPD
What is smoking cessation, adequate nutrition, O2 therapy, lung transplant, lung reduction surgery/pneumonectomy
300
5 nerves that must be blocked at the ankle to provide complete coverage of the foot?
What is deep peroneal, superficial peroneal, saphenous, tibial, sural
400
Which volatile anesthetics require adjustments to the vaporizer when administered at high altitudes?
What is Desfluorane- the desflurane vaporizer is electrically heated to 39 degrees centigrade, which creates a vapor pressure of 2 atmospheres inside the vaporizer, regardless of ambient pressure. The number on the dial reflects the percentage that will be delivered. So at any altitude, when you dial 5%, it will give you 5%. But when that 5% desflurane leaves the vaporizer at high altitude, what is delivered to the patient is 5% of a decreased ambient pressure, so the partial pressure of desflurane in the alveoli will be much less that it would be at sea level. Thus, you will need to dial a higher concentration at high elevation to attain the same clinical effect as at sea level with desflurane (Tec-9) vaporizer
400
A patient is hypotensive throughout a 4.5 hr lap chole. She initially responds well to 50mcg doses of phenylephrine, but becomes less responsive as the case progresses. What is the term to describe this effect
What is tachyphlaxis
400
Cardiovascular drug used for long-term rate control in patients with Atrial Fibrillation that has potential to potentiate neuromuscular blockade
What is Verapamil (Ca2+ channel blocker)
400
Mnemonic for types/locations of restrictive lung disease etiologies given?
What is PAINT (Pleural, Alveolar, Interstitial, Neuromuscular, Thoracic/extrathoracic)
400
Drains into the junction of the left subclavian and left internal jugular veins?
What is thoracic duct
500
An increased CO does this to the Fa/Fi of an inhalational anesthetic
What is Slow the rate of rise of Fa/Fi
500
What 2nd messenger does milrinone affect?
What is cAMP (and subsequently Ca2+)
500
Name 3 of the 5 causes of upregulation of extrajunctional ACh receptors
What is burns, immobility, chronic muscle relaxants, insulin resistance, loss of electrical activity
500
2 considerations presented prior to extubating an asthmatic pt
What is deep extubation (or lido) and albuterol prior to extubation
500
What are the afferent and efferent limbs of the occulocardiac reflex?
What is Trigeminal (V-afferent) and Vagus (X-efferent)