TxWes Guide Airway/Respiratory

Question 1

AIRWAY CLASSIFICATION

Describe a Mallampati 1.

Answer 1

PUSH
Pillars, Uvula, Soft/Hard Palate, and fauces

Question 2

AIRWAY CLASSIFICATION

Describe a Mallampati 2.

Answer 2

USH
Uvula, Soft/Hard Palate, and fauces

Question 3

AIRWAY CLASSIFICATION

Describe a Mallampati 3.

Answer 3

uSH
Base of uvula, Soft/Hard Palate

Question 4

AIRWAY CLASSIFICATION

Describe a Mallampati 4.

Answer 4

H
Hard Palate only

Question 5

AIRWAY CLASSIFICATION

List the Cormack-Lehane view grade: Full view of entire glottic opening.

Answer 5

Grade 1

Question 6

AIRWAY CLASSIFICATION

List the Cormack-Lehane view grade:
Neither glottis nor epiglottis seen.

Answer 6

Grade 4.

Question 7

AIRWAY CLASSIFICATION

List the Cormack-Lehane view grade:
Only epiglottis seen.

Answer 7

Grade 3.

Question 8

AIRWAY CLASSIFICATION

List the Cormack-Lehane view grade:
Only posterior portion of glottic opening.

Answer 8

Grade 2.

Question 9

List the normal blood gas values:
pH
PaO₂
PaCO₂

Answer 9

pH: 7.35-7.45
PaO₂: 90-100
PaCO₂: 35-45

Question 10

List the normal blood gas values:
HCO₃⁻
BE
SaO₂

Answer 10

HCO₃⁻: 22-26
BE: -2 to 2
SaO₂: 95-98%

Question 11

Formula for VO₂

Answer 11

10 x kg(3/4) = VO₂

Question 12

Formula for VCO₂

Answer 12

8 x kg(3/4) = VCO₂

Question 13

What does this formula describe?

[FiO₂ x (Pb - PH₂O)] - PaCO₂ / 0.8

Answer 13

Alveoar Gas/Air Equation

https://youtu.be/vrjK4gxa-48

Question 14

Formula for arterial O₂ content/dL

Answer 14

(Hgb x 1.34 x SaO₂) + (PaO₂ x 0.003)

Question 15

PBW (predicted body weight) equation for a male.

Answer 15

50 + 0.91(cm height - 152.4)kg = male PBW

PBW is used to determine your tidal volume (5 - 8cc/kg).

Question 16

PBW (predicted body weight) equation for a female

Answer 16

45.5 + 0.91 (cm height -152.4)kg = female PBW.

PBW is used to determine your tidal volume (5 - 8cc/kg).

Question 17

PEDI ETT

How can you determine the ETT length?

Answer 17

(Tube size x 3)

Question 18

PEDI ETT

List the ETT sizes:
Preemies (≤ 1kg)
Preemies (1-2.5kg)
Term Neonate

Answer 18

2.5
3
3.0 - 3.5

Question 19

PEDI ETT

List the ETT sizes:
6mo-1yr
1-2yr

Answer 19

3.5 - 4.0
4.0 - 4.5

Question 20

ETT SIZING

How do you determine ETT size for >2yrs?

Answer 20

[(age + 16) / 4]
or
[(age / 4) + 4]

Question 21

PEDI LMA SIZES

List the size & max cuff air volume:
0-5kg
5-10kg
10-20kg
20-30kg
>30kg
Adult

Answer 21

0-5kg: 1 (4cc)
5-10kg: 1.5 (7cc)
10-20kg: 2 (10cc)
20-30kg: 2.5 (14cc)
>30kg: 3 (20cc)
adult: 4 (30cc)

Question 22

LMA size for 0-5kg pediatric patient?
How much air to fill the cuff?

Answer 22

1
4mL

Question 23

LMA size for 5-10kg pediatric patient?
How much air to fill the cuff?

Answer 23

1.5
7mL

Question 24

LMA size for 10-20kg pediatric patient?
How much air to fill the cuff?

Answer 24

2
10mL

Question 25

LMA size for 20-30kg pediatric patient?
How much air to fill the cuff?

Answer 25

2.5
14mL

Question 26

LMA size for >30kg pediatric patient?
How much air to fill the cuff?

Answer 26

3
20mL

Question 27

LMA size for an adult patient?
How much air to fill the cuff?

Answer 27

4
30mL

Question 28

ETT size for pediatric pt ≤1kg

Answer 28

2.5

Question 29

ETT size for pediatric preemie 1 - 2.5kg

Answer 29

3

Question 30

ETT size for term neonate (6mo)

Answer 30

3 - 3.5

Question 31

ETT size for 6mo - 1 year pt

Answer 31

3.5 - 4

Question 32

ETT size for 1 - 2 year pt

Answer 32

4 - 4.5

Question 33

ETT size for pediatric pt >2 year

Answer 33

age/4 +4

Question 34

What are treatment options for laryngospasm?

Answer 34

• positive pressure ventilation (don’t exceed 20 mmHg)
• Larson’s Maneuver
• Succinylcholine 10-20mg IV (if other options don’t work)