Questions

Question 1

The acute onset of hypotension without a decrease in mixed venous oxygen saturation is most likely associated with the onset of _____

Answer 1

sepsis

Question 2

The speed of inhalational induction is slowed by right-to-left shunting. The change in the rate is least pronounced when using which agent?

Answer 2

Isoflurane

(high blood:gas solubility)

Question 3

Which opioid is currently NOT approved for epidural or intrathecal use?

Answer 3

remifentanyl

• prepared in a glycine solution, a known inhibitory neurotransmitter

Question 4

The following hemodynamic values are obtained two hours after coronary artery bypass surgery:

• Cardiac index: 1.7 ^L/min/_m2
• Pulm Art. Occ. Pressure 22 mmHg
• MAP: 60 mmHg
• Urine volume: 0.2 ^mL/kg/_hr

Pick the most appropriate management

Answer 4

Dopamine infusion

Question 5

When the pressure gauge on a size “E” compressed gas cylinder containing N2O begins to fall from its previous constant pressure of 750 psi, approximately how many liters of gas will remain in the cylinder?

Answer 5

400

• pressure in a N₂O tank will remain constant at 750 psi until about 3/4s of the nitrous has left the tank

Question 6

A size “E” compressed-gas cylinder completely filled with N2O contains how many liters?

Answer 6

1590 L

Question 7

Which Law:

“For a fixed mass of gas at constant temperature, the product of pressure and volume is constant”

Answer 7

Boyle’s Law

Question 8

The O₂ pressure-sensor shutoff valve requires what O₂ pressure to remain open and allow N₂O to flow into the N₂O rotameter?

Answer 8

30 psi

Question 9

Coughing that occurs during awake intubation is prevented by blocking which nerves?

Answer 9

recurrent and superior laryngeal

Question 10

Stellate Ganglia

[location]

Answer 10

C7

just below subclavian artery

Question 11

Which volatile agent has the highest fluoride levels?

Answer 11

Sevoflurane

Question 12

Initial reduciton in core temperature during general anesthesia is caused by _____

Answer 12

redistribution of heat from the core to the periphery

Question 13

Which NDMR will have a prolonged duraiton in a patient homozygous for atyplica plasma cholinesterase?

Answer 13

Mivacurium

Question 14

Musculocutaneous nerve

[origin]

Answer 14

C5 and C6

Question 15

What will most likely increase PaO₂ during OLV?

Answer 15

applying CPAP to nondependent lung

Question 16

Adverse side effect of prolonged nitroglycerin infusion

Answer 16

methemoglobinemia

Question 17

Substantia Gelatinosa

[definition]

Answer 17

collection of cells in grey matter (dorsal horns) of the spinal cord

especially recieves pain and heat information

Question 18

wedging of the PA catheter will have what effect on mixed venous oxygen saturation?

Answer 18

increase

Question 19

A patient has hoarseness s/p aortic arch surgery. Most likely which nerve injury?

Answer 19

left recurrent laryngeal