Exam LATEST 2025-2026
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A 23-year-old patient is in moderate respiratory distress while receiving oxygen.
ABG=7.42/ 31/ 38/ 20/ -3/ 71%
How should these results be interpreted? - ANSWERS-Chronic Respiratory Alkalosis
with severe hypoxemia
What is the patient's TLC?
Vital Capacity= 3.6L
FRC= 6.0 L
ERV = 1.0 - ANSWERS-8.6
, A COPD patient becomes hypotensive following a drug overdose. Following intubation
VC A/C ventilation should be initiated with which of the following oxygen
concentrations?
A. 0.21
B. 0.50
C. 0.70
D. 1.0 - ANSWERS-D. 1.0
A patient has been receiving VC ventilation for 24 hours. A respiratory therapist is
called to the bedside because the high pressure alarm is sounding with each breath.
What should the RT do first? - ANSWERS-Manually ventilate the patient
Just prior to removing the endotracheal tube, a respiratory therapist should do what? -
ANSWERS-Deflate the cuff
While preparing to assist with a chest tube insertion , an RT learns that pleurodesis will
follow. What equipment would the RT provide? - ANSWERS-Hemostat and 3-way
stopcock
What is the formula for dynamic compliance? - ANSWERS-VT/ (PIP-PEEP)
A 52-year-old patient with newly diagnosed OSA undergoes a CPAP titration study.
With a CPAP of 12cm H2O, the AHI is 3 and the lowest observed oxygen saturation is
90%. The patient continues to snore, what should the RT do? - ANSWERS-Increase the
CPAP level
What is the target FiO2 range of nasal cannula in a patient with normal minute
ventilation? - ANSWERS-0.24-0.40
An RT is called to the ED to assist with the intubation of an alert, agitated patient in
respiratory failure. 2 intubation attempts were unsuccessful. In addition to a
neuromuscular blockade, which of the following drugs will best facilitate intubation?
A. Propranolol HCl (Inderal)
B. Midazolam HCl (Versed)
C. Amlodipine (Norvasc)
D. Nitroprusside Sodium - ANSWERS-B. Midazolam HCl (Versed)
A 14 year old male who is 163cm /5ft4in tall and weighs 51kg/112lbs is brought to the
ED for suspected drug overdose. He is intubated receiving VC AC ventilation.
Mandatory Rate: 14
Tidal Volume: 300mL
Inspiratory Flow: 20L/min
Pressure limit: 50cm H2O
, The physician wants the RT to adjust the I:E from 1:1.2 to 1:3
What should the RT increase? - ANSWERS-The inspiratory flow
A 180-cm (5ft 11in) 75kg (165lb) male had a cardiac arrest and is admitted to the ICU.
The patient is apneic, receiving 100% O2 by a bag valve mask resuscitator, and has an
SpO2 of 94%. Which is the most appropriate ventilator setting?
1. SIMV/FiO2 1.0/Rate 10/VT 400/PEEP +3
2. SIMV/FiO2 0.40/Rate 12/VT 750/PEEP +5
3. AC/ FiO2 1.0/Rate 12/VT 600/PEEP +5
4. AC/FiO2 0.40/Rate 10/VT 550/PEEP +3 - ANSWERS-3. AC/ FiO2 1.0/Rate 12/VT
600/PEEP +5
While instructing a 9-year-old with pneumonia in use of PEP therapy device a
respiratory therapist observes the child is consistently unable to keep the seal around
the mouthpiece. What should the RT recommend? - ANSWERS-Select a mask rather
than a mouthpiece
What can be used to confirm the correct endotracheal tube position? - ANSWERS-CXR
Lung fields appear whiter on a chest radiograph when the imaging technique is
____________ - ANSWERS-Underexposed
A 71-year-old man who has a femur fracture had a chest CT angiogram due to
increased shortness of breath. An RT observes multiple pulmonary arterial thrombi.
SpO2 is 94% while receiving oxygen at 2L/min by nasal cannula. What should the RT
recommend? - ANSWERS-Intravenous heparin
A 49-year-old female with polyneuropathy has received mechanical ventilation for 74
days. For the past week the patient has been receiving an FiO2 of 0.28 by
tracheostomy collar for progressively longer periods of time. Data collected for the
weaning trial are:
30 Minutes:
HR=99/RR=22/SpO2=96%
2 Hours:
HR=103/RR=24/SpO2=94%
3 Hours:
HR=132/RR=36/SpO2=88%
How much time should the RT recommend performing the weaning trial the next day? -
ANSWERS-2 hours