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Gowned surgical personnel are considered sterile from the height of the sterile field up and from where?
2 inches above the elbows to the hands.
What is the main source of airborne bacteria?
Exfoliated skin particles from the operating room staff
What is the most frequent mode of infection transmission?
Contact
Items that contact mucous membranes or non-intact skin are semi-critical and requires what level of disinfection?
High level
Standard precautions are used to reduce the transmission of what?
Blood
Which organization is responsible for accreditation and certification standards and sets initiatives for national patient safety goals in the US?
The Joint Commission
How often are National Patient Safety Goals released?
Annually
Contact dermatitis is a common clinical reaction associated with what?
Latex
A patient has a latex allegy what should a technologist be most cautious about?
Gloves
SSEP stimulation of peripheral nerve, the pathway ascends where?
Ipsilateral dorsal columns
D waves are recorded from which of the following electrodes?
Epidural electrodes over the spinal cord
Define "Current"
Amount of electrons flowing between two points
Impedance is the opposition to what kind of flow?
Alternating current flow
Formula for Ohm's law?
V=IR
Common mode rejection of 100:1, is how many dB?
40
To display ptn SSEP response as downward deflection, which of the following must be known?
Polarity of the response and polarity of amplifier input
A positive event occuring in the lead connected to the negative terminal, will result in what kind of deflection?
Downward
If an amplifier is rated as 120 dB common mode rejection, which of the following ratios would be expected?
1,000,000:1
How often should routine electrical safety checks be scheduled?
At least twice a year
What is the maximum leakage current through the patient?
10 uA rms
