1112 Practice Test 5

PSG Term 3

The heart consists of these chambers

Right/Left Atria and Right/Left Ventricles

When the heart beats it is contracting which is also called?

depolarization

Known as the “pacemaker of the heart”?

SA node

The American Academy of Sleep Medicine grants laboratory accreditation for a period of how many years?

5

If the input voltage is 500 uV and the sensitivity is 150 uV what would the pen deflection be?

3.33

The term Zeitgeber can best be described as signals in the brain synchronizing our?

Internal clock to external environment

On a BIPAP titration you should increase the IPAP for OSA

False

A regular rhythm with a rate of greater than 90 beats per minute during sleep is known as

Tachycardia

When the sensitivity of n amplifier is increased from 10 uV/mm to 25 uV/mm. The pen deflection should be?

Decreased by half

Acid glutaraldehyde will function as a sporicidal in how long?

3-10 hours

What age do pediatric sleep staging rules apply to?

Children two months post-term and older

On a MSLT, how many nap opportunities are usually provided?

5

What EEG pattern is characteristic of absence seizures?

Spike and waves

In an EEG monitoring, what placement is recommended for the reference electrode?

At FPz

In a sleep facility, what is the recommended practice for preventing cross contamination?

Having separate areas for clean and dirty equipment

If the impedance of any pair of electrodes (excluding ECG) exceeds 10k ohms, what action should be taken?

Remove, re-prep, and replace the electrodes

In PSG amplifiers, what is the purpose of the 60 Hz notch filter?

Eliminate interference from power lines

How does the digital amplifier differ from a traditional analog amplifier?

Digital amplifiers convert signals to numeric form

For patients with nasal obstruction, which interface is recommended?

Oronasal mask

When considering the use of Bi-Level positive airway pressure, what is a common indication?

Management of central sleep apnea