CNIM Exam Questions to Re-Study

What is the initial event that occurs when the action potential threshold of a neuron is reached? - Answer- Voltage gated Sodium channels open What does the sodium potassium pump do? - Answer- Pumps K+ into cell and Na out of cell Which of the following has the greatest effect on SSEP Monitoring? -Fentanyl -Diazepam -Pavulon -Sevoflourane - Answer- -Diazepam Which of the following is a barbituate? -Remifentanil -Methohexital -Curare -Nitrous Oxide - Answer- -Methohexital Desflurane has more rapid onset and recovery than isolfurane because: - Answer- Desflurane has a HIGHER blood solubility than Isoflurane Which SSEP peaks are more affected by Desflurane? - Answer- -Later cortical peaks will be more affected than earlier peaks, so if you're comparing N20 to P100 the answer will be P100 What will fentanyl infusion do to our signals? - Answer- Increase latency and decrease amplitude If you have a lot of high frequency noise in your BAEPs you can change your filter from: - Answer- Hz If sound intensity is increased from 20 dB to 40 dB then the sound pressure has increased by a factor of? What is SPL and its equation? - Answer- 10 -SPL is sound pressure level, the equation for it i: dB= 20log(Pressure) in order to find the factor by which sound intensity has increased by, plug in dB, solve for P, and divide the two Ps Where is BAEP wave V generated - Answer- midbrain