Respiratory Monitors & Equipment

Question 1

Answer 1

Bronchospasm, aspiration of a foreign body, & kinked ETT

Question 2

normal static compliance in adult? peds?

Answer 2

adult = 35-100 mL/cmH2O
peds = > 15 mL/cmH2O

Question 3

What type of pulmonary compliance is a function of both airway resistance & elasticity of the chest wall?

Answer 3

Dynamic compliance

Question 4

What is the formula for dynamic compliance?

Answer 4

(tidal volume) / (PIP -PEEP)

Question 5

What type of pulmonary compliance is a function of the elasticity of the chest wall only?

Answer 5

static compliance

Question 6

What is the formula for static compliance?

Answer 6

(tidal volume) / (PP - PEEP)

Question 7

The alpha angle is measured at point ___ in the capnograph. normal =?

Answer 7

C
100-110 degrees

Question 8

What does an increased alpha angle signify?

Answer 8

expiratory airflow obstruction (COPD, bronchospasm, kinked ETT)

Question 9

The beta angle is measured at point ___ in the capnograph. normal =?

Answer 9

D
90 degrees

Question 10

Oxygenated blood absorbs ____ light (___nm); Deoxygenated blood absorbs ____ light (__nm)

Answer 10

near-infrared (940 nm);
red (660 nm)

Question 10

what does an increased beta angle signify?

Answer 10

rebreathing d/t faulty inspiratory valve

Question 11

SpO2 equation

Answer 11

(oxygenated Hgb) / (oxygenated Hgb + deoxygenated Hgb) x 100%

Question 12

SpO2 90% = ? PaO2
SpO2 80% = ? PaO2
SpO2 70% = ? Pa O2

Answer 12

60 mmHg
50 mmHg
40 mmHg

Question 13

What is the most common method of measuring exhaled gases inside the breathing circuit?

Answer 13

Infrared absorption

Question 14

Bombards a gas sample with electrons creating ion fragments

Answer 14

Mass spectrometry

Question 15

Uses a high power argon laser to produce photons, which in turn collide with the gas molecules

Answer 15

Raman Scatter Spectometry

Question 16

Detects inspired, expired, and breath to breath changes of a particular gas by incorporating a lipid layer on the crystal

Answer 16

Piezoelectric crystals

Question 17

Different gases absorb different wavelengths of infrared light, each having a signature “fingerprint.” Diatomic molecules don’t absorb IR light

Answer 17

Infrared absorption

Question 18

What condition is a/w a decreased PaCO2 to EtCO2 gradient?

Answer 18

dysfunctional inspiratory unidirectional valve

Question 19

Answer 19

A

Question 20

Answer 20