Lindsey Jones Practice 3 Questions With Correct Answers |
2025
A patient receiving mechanical ventilation has received Halcion in the last twenty minutes. The
physician orders the institution of spontaneous breathing trials to commence immediately.
Which of the following medications would be most helpful to the patient?
A. Valium
B. Morphine sulfate
C. Meperidine
D. Romazicon (Flumazenil) - ✔✔D. Romazicon (Flumazenil)
*In this question the patient is taking a drug called Halcion. The doctor would like T-piece trials,
which means the patient has to breathe on his or her own. Since that medication would inhibit
breathing, the effect of that medication must be reversed. Romazicon is the drug that will
reverse Halcion.
In preparation for ventilator weaning the physician requests a VD/VT ratio assessment. Which of
the following is needed to determine the deadspace-tidal volume ratio?
A. single breath nitrogen elimination and capnographic data
B. helium dilution study and single breath nitrogen elimination
C. helium dilution study and an arterial blood gas
D. arterial blood gases and capnographic data - ✔✔D. arterial blood gases and capnographic
data
,*This question is just about knowing what it takes to calculate a VD/VT ratio. You really only
need two things - PO2 and end tidal CO2. End tidal CO2 comes from a device called a
capnograph.
A respiratory therapist is determining a VD/VT ratio. Which of the following is needed to
complete this analysis?
A. VT and VA
B. FIO2 and PaO2
C. PECO2 and PaO2
D. PetCO2 and PaCO2 - ✔✔D. PetCO2 and PaCO2
*There are two things required to determine a VD/VT ratio - end tidal CO2 and PaCO2.
Which of the following is LEAST likely to promote the spread of nosocomial infection in a
hospital?
A. use of unit dose medication
B. poor hand washing among staff
C. frequent disconnection of a ventilator circuit
D. changing small volume nebulizer equipment every 48 hours - ✔✔A. use of unit dose
medication
*The best option is to use unit dose medication. The use of multiple-dose bottles of medication
used to be more prelavent. When doing so the dropper stem of the medication bottle could
touch the internal surface of the nebulizer, possibly picking up and depositing pathogenic
organisms. Changing the nebulizer every 48 hours may also be helpful but not as effective at
preventing nosocomial infections. The other options in this question are likely to increase
nosocomial infection rates in hospitals.
,Which of the following can be used to estimate the level of Hemoglobin?
A. Theophylline level
B. RBC
C. C(a-v)O2
D. PAO2 - ✔✔B. RBC
*There is a relationship between hematocrit, hemoglobin, and red blood cell count. Each of
these items have a multiplier of three in common. For instance, normal RBC is about 5.
Hemoglobin can be estimated by taking the RBC and multiplying is by 3. That would give you a
hemoglobin of 15. Hematocrit can be estimated by taking the hemoglobin and multiply it by 3,
which would give you 45%. Therefore, to estimate hemoglobin, hematocrit, and RBC, one only
has to know one of the other values. From there, you can estimate the other two.
Which of the following alarms would be most important for a patient receiving positive pressure
ventilation by a pressure-cycled ventilator?
A. low volume
B. high pressure
C. I:E ratio
D. low FIO2 - ✔✔A. low volume
*If the patient is on a pressure cycle ventilator, that means the ventilator is going to deliver a
certain pressure regardless of how much volume is achieved. If the ventilator does not care
about volume, the practitioner must. Thus, the most important alarm for a pressure-cycled
ventilator is low-volume. The opposite is also true. The most important alarm on a volume-
cycled ventilator would be the high pressure alarm.
, Patients with large necks who experience frequent dislodging of their tracheostomy tubes need
(a)
A. larger tracheostomy tube
B. nasal intubation
C. longer tracheostomy tube
D. shorter tracheostomy tube - ✔✔C. longer tracheostomy tube
*Due to the increased neck circumference of a morbidly obese patient, special tracheostomy
tubes that have long proximal extensions allow for the increased distance from the interior
tracheal wall to the opening of the stoma at the skin.
Which of the following would be most effective at resolving a humidity deficit for a patient who
is intubated with an 8.0-mm endotracheal tube?
A. large volume nebulizer
B. bubble humidifier
C. concha heated humidifier
D. HME - ✔✔C. concha heated humidifier
*A person who has an endotracheal tube in place has bypassed the natural humidification
devices of their own body. Therefore, they need additional humidification to make up the
humidity deficit and received nearly 100% relative humidity. Of the devices shownm, only a
heated humidifier can make up all of the humidity deficit and a approach 100% relative
humidity. The two types of humidifiers that can accomplish this are called Concha and Wick.
Some passover humifiers are also able to accomplish this if their surface area is drastically
increased by some means and if they are heated.
2025
A patient receiving mechanical ventilation has received Halcion in the last twenty minutes. The
physician orders the institution of spontaneous breathing trials to commence immediately.
Which of the following medications would be most helpful to the patient?
A. Valium
B. Morphine sulfate
C. Meperidine
D. Romazicon (Flumazenil) - ✔✔D. Romazicon (Flumazenil)
*In this question the patient is taking a drug called Halcion. The doctor would like T-piece trials,
which means the patient has to breathe on his or her own. Since that medication would inhibit
breathing, the effect of that medication must be reversed. Romazicon is the drug that will
reverse Halcion.
In preparation for ventilator weaning the physician requests a VD/VT ratio assessment. Which of
the following is needed to determine the deadspace-tidal volume ratio?
A. single breath nitrogen elimination and capnographic data
B. helium dilution study and single breath nitrogen elimination
C. helium dilution study and an arterial blood gas
D. arterial blood gases and capnographic data - ✔✔D. arterial blood gases and capnographic
data
,*This question is just about knowing what it takes to calculate a VD/VT ratio. You really only
need two things - PO2 and end tidal CO2. End tidal CO2 comes from a device called a
capnograph.
A respiratory therapist is determining a VD/VT ratio. Which of the following is needed to
complete this analysis?
A. VT and VA
B. FIO2 and PaO2
C. PECO2 and PaO2
D. PetCO2 and PaCO2 - ✔✔D. PetCO2 and PaCO2
*There are two things required to determine a VD/VT ratio - end tidal CO2 and PaCO2.
Which of the following is LEAST likely to promote the spread of nosocomial infection in a
hospital?
A. use of unit dose medication
B. poor hand washing among staff
C. frequent disconnection of a ventilator circuit
D. changing small volume nebulizer equipment every 48 hours - ✔✔A. use of unit dose
medication
*The best option is to use unit dose medication. The use of multiple-dose bottles of medication
used to be more prelavent. When doing so the dropper stem of the medication bottle could
touch the internal surface of the nebulizer, possibly picking up and depositing pathogenic
organisms. Changing the nebulizer every 48 hours may also be helpful but not as effective at
preventing nosocomial infections. The other options in this question are likely to increase
nosocomial infection rates in hospitals.
,Which of the following can be used to estimate the level of Hemoglobin?
A. Theophylline level
B. RBC
C. C(a-v)O2
D. PAO2 - ✔✔B. RBC
*There is a relationship between hematocrit, hemoglobin, and red blood cell count. Each of
these items have a multiplier of three in common. For instance, normal RBC is about 5.
Hemoglobin can be estimated by taking the RBC and multiplying is by 3. That would give you a
hemoglobin of 15. Hematocrit can be estimated by taking the hemoglobin and multiply it by 3,
which would give you 45%. Therefore, to estimate hemoglobin, hematocrit, and RBC, one only
has to know one of the other values. From there, you can estimate the other two.
Which of the following alarms would be most important for a patient receiving positive pressure
ventilation by a pressure-cycled ventilator?
A. low volume
B. high pressure
C. I:E ratio
D. low FIO2 - ✔✔A. low volume
*If the patient is on a pressure cycle ventilator, that means the ventilator is going to deliver a
certain pressure regardless of how much volume is achieved. If the ventilator does not care
about volume, the practitioner must. Thus, the most important alarm for a pressure-cycled
ventilator is low-volume. The opposite is also true. The most important alarm on a volume-
cycled ventilator would be the high pressure alarm.
, Patients with large necks who experience frequent dislodging of their tracheostomy tubes need
(a)
A. larger tracheostomy tube
B. nasal intubation
C. longer tracheostomy tube
D. shorter tracheostomy tube - ✔✔C. longer tracheostomy tube
*Due to the increased neck circumference of a morbidly obese patient, special tracheostomy
tubes that have long proximal extensions allow for the increased distance from the interior
tracheal wall to the opening of the stoma at the skin.
Which of the following would be most effective at resolving a humidity deficit for a patient who
is intubated with an 8.0-mm endotracheal tube?
A. large volume nebulizer
B. bubble humidifier
C. concha heated humidifier
D. HME - ✔✔C. concha heated humidifier
*A person who has an endotracheal tube in place has bypassed the natural humidification
devices of their own body. Therefore, they need additional humidification to make up the
humidity deficit and received nearly 100% relative humidity. Of the devices shownm, only a
heated humidifier can make up all of the humidity deficit and a approach 100% relative
humidity. The two types of humidifiers that can accomplish this are called Concha and Wick.
Some passover humifiers are also able to accomplish this if their surface area is drastically
increased by some means and if they are heated.
