NBCRNA QUESTIONS WITH 100% CORRECT ANSWERS

Agents that reduce the sensitivity of postjunctional nicotinic receptor to the effect of
ACh?


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tetracycline

,During open cardiac surgery, what is the highest SBP where the aorta can safely be
cannulated?


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100 mmHg
(90-100 or MAP < 70)




What is pulsus paradoxus?


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SBP decreases with each inspiration, and it declines greater than 10mmHg




What syndromes are most likely to cause prolonged QT?


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Romano-Ward syndrome
Timothy syndrome




Acid + acid =
Acid + base =


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, unionized
ionized


"like dissolves like"




Flow of blood from aorta to circle of willis:
basilar artery
SCL artery
Posterior cerebral artery
vertebral artery


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SCL artery
vertebral artery
basilar artery
posterior cerebral artery




LMA sizes: kg based
< 5 kg:
5-10kg:
10-20:
20-30:
30-50:
50-70:
70-100:
>100:


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, < 5 kg: 1
5-10kg: 1.5
10-20: 2
20-30: 2.5
30-50: 3
50-70: 4
70-100: 5
>100: 6




A pt with COPD got a spinal anesthetic, impairment of what two muscles is most likely
to compromise resp status?


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intercostals
abdominal


- accessory muscle function




What do phosphodiesterase inhibitors do to cAMP?


in regards to B-1 and B-2 what do PDEI's do?


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increase
by turning "off" a mechanism

B-1: increase intracellular calcium and increase isotropy
B-2: decrease intracellular calcium and cause vasodilation