[2] O2

1. Level of SpO2 typically associated with discontinuation of o2 therapy

92%

1. You start a chronic obstructive pulmonary disease (COPD) patient on a nasal O2 cannula at 2 L/min. What is the maximum time that should pass before assessing this patient’s PaO2 or SaO2?

2 hours

1. True about reservoir cannulas

• Nasal anatomy + breathing pattern can affect performance

1. Most common cause of hypoxemia in patients with lung disease

V/Q mismatch

Advantage of transtracheal

• Require 40-60% less o2 flow than nasal cann

1. Well fitten nonrebreathing mask

55-70%

Problem of input flows >10-15 in infant in oxyyhood

stress noise levels

1. Major disadvantages of transtracheal catheter are all except

excessive use of o2

1. Variant of common low flow nasal O2 cann

hfnc

1. In setting up oxyhood, check every how many hour/s

1 HOUR

1. To ensure stable fio2 of o2 delivery device, it must:

provide all gas needed by pt

1. RT on rounds and finds patient with whole reservoir tubing fallen off, what effect

decreased fio2

1. What o2 delivery device ; variable rr, I:E ratio

air entrainment

1. From upright to supine, what happens

decreased inspired o2

1. Patient with pulmonary edema experiences very SOB + hypoxemia na siya, needs NRM but doesnt want a mask

• Begin HFNC greater / = 10 LPM

1. Patient with COPD going home, needs o2 only during exertion

molecular sieve o2 concentraiton

1. Patient needs 75% o2, which would be best

nrm

1. Comatose patient intubated + receiving 35% o2 but mist disappears downstream

add aerosol tubing to end of t piece

1. Order received to setup HFNC on patient, what is not needed

sterile saline

1. 58 year old patient with advanced emphysema admitted with acute exacerbation, while on 2 LPM o2 via transtracheal catheter, abg shows data. What should be done

change to 24$ o2 via air entrainment mask

 patients blanket covers air entrainment ports

increased

Cooperative + alert post op patient able to eat + needs fio2 continuously

nasal cann

 Patient receiving 35% o2 via entrainment mask set at 6 lpm input flow become tachypniec, spo2 falled from 91-87. What to do?

increase input flow to 10 lpm

Physician orders o2 for patient via nasal cann at 12 lpm. When u ask what the goal is, he said patient should receive 60% o2. What do we recommend

o2 given via sfm 5-12 lpm

Enter room of patient with nasal o2 via bubble humidifier at 5 lpm. U immediately notice humidifier pressure relief popping off. What do we do

• Look for crumpled tubing / twisted delivery tubing

You connect intubated patient to air entrainment neb via t tube at 60 %. Wala ni gawas ang mist sa ends of tube. What does this mean

• Patient not receiving 60%

 What else should be done to ensure patient receives 60 % fio2 aside from one-way valve

emergency inlet valve

In home care patient o2 concentration ni alarm siya and output drops, what to do

• Switch immediately to backup cylinder

If bag does not fully inflate, what does this mean

leakage / faulty valve

1. Nitric oxide therapy is used for

ventilator

1. Typical carbogen ratio

90 02 ; 10 CO2

1. Compensated thorpe tube 

drops if fully obstructed

meaning of (+) in cylinder

10% overfill

“* or star” in cylinder

complete 10 year retest