BIOL 2401 Lab Midterms

BIOL 2401 Lab Midterm 2025-
2026




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, BIOL 2401 Lab Midterm
BIOL 2401 Lab Midterm
Question 1
The respiratory therapist enters modes and parameters into the ventilator is
Correct Answer
User interface


Question 2
How many variables can a ventilator control at one time?
Correct Answer
One


Question 3
The volume-displacement device that creates a sinusoidal flow waveform is which of the
following?
Correct Answer
Rotary drive piston


Question 4
Which of the following is an example of a flow control valve?
Correct Answer
Solenoid


Question 5
A patient who has a decrease in lung compliance due to acute respiratory distress syndrome
during volume-limited ventilation will cause which of the following?
Correct Answer
Increased peak pressure


Question 6
The variable that a ventilator uses to end-inspiration is known as which of the following?
Correct Answer
cycle


Question 7
The most common method of terminating inspiration during pressure support ventilation is
which of the following?
Correct Answer
Flow


Question 8
A patient with inadequate oxygenation of the brain may display which of the following
conditions?
Correct Answer
Exctiement and Somnolence


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, BIOL 2401 Lab Midterm

Question 9
Hypercapnic respiratory failure due to increased work of breathing will be caused by which
of the following?
Correct Answer
Asthma exacerbation


Question 10
A 64-year-old female patient having an acute exacerbation of chronic obstructive pulmonary
disease (COPD) was admitted to the hospital yesterday. During rounds today the respiratory
therapist finds the patient to be difficult to arouse and has the following physical findings:
heart rate 102 beats/min, respiratory rate 23 breaths/min shallow and slightly labored, breath
sounds are bilaterally decreased with rhonchi in both bases. The patient has a frequent but
weak cough. The respiratory therapist draws an ABG with the following results on a 2 L/min
nasal cannula: pH 7.52, PaCO2 30 mm Hg, PaO2 45 mm Hg, SaO2 86%, HCO 24 m Eq/L. The
most appropriate action is which of the following?
Correct Answer
Increase the nasal cannula to 4 L/min.


Question 11
A patient seen in the emergency department exhibits paralysis of the lower extremities that
is getting progressively worse. Vital capacity is 6 mL/kg, maximum inspiratory pressure (MIP)
is 17 cm H2O, and oxygen saturation measured by pulse oximeter (SpO2) is 89%. Arterial
blood gases are pending. The physician suspects Guillain-Barré syndrome. The most
appropriate action at this time is which of the following?
Correct Answer
Intubate and mechanically ventilate


Question 12
A patient is being ventilated with a Susie 248 ventilator, and the high pressure limit is
sounding with each breath. Likely causes would include:
Bronchospasm
Secretions
Tension pneumothorax
Patient "fighting" the ventilator
A kink in the ET tube
Correct Answer
All of the above


Question 13
A 14-year-old boy who had previously been diagnosed with mild persistent asthma has a
PEFR of 100 L/min. This indicates which of the following?
Correct Answer
Increased airway resistance




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