Recognized Text
To properly visualize the epiglottis while using a curved laryngoscope blade, a respiratory therapist should
A. place the blade
... [Show More] lateral to the tongue and lift.
B. rotate the handle side-to-side until the epiglottis is exposed.
C. extend the blade posterior to the epiglottis and lift up.
D. advance the blade and place the tip in the vallecula.
4. Page 4 Recognized Text
A respiratory therapist obtains the following hemodynamic results for a postoperative patient in an intensive care unit:
BP 100/50 mm Hg
HR 120/min
CVP 1 mm Hg
PAP 18/7 mm Hg
PCWP 3 mm Hg
C.I. 1.8 L/min/m2
The therapist should recommend.
A. initiating a nitroprusside sodium (Nipride) infusion.
B. adding intravenous norepinephrine (Levophed).
C. starting furosemide (Lasix) therapy.
D. administering a normal saline bolus.
5. Page 5 Recognized Text
Following cardiac arrest, a 70-kg (PBW) male receives bag-valve-mask ventilation. A #5 laryngeal mask airway is inserted. Decreased chest expansion, a decline in exhaled CO2, and air leak are observed after restarting bag-valve ventilation. The most likely cause of these findings is
A. reduced airway resistance.
B. resuscitation bag failure.
C. the cuff is underinflated.
D. increased chest compliance.
6. Page 6 Recognized Text
A 168-cm (5-ft 6-in),59-kg(130-Ib) female patient is receiving VC, A/C ventilation with the following settings.
Mandatory rate 10
VT 450 mL
Inspiratory flow 60 L/min
PEEP 5 cm H2O
Over the past hour, the PIP has increased from 30 to 40 cm H2O and the plateau pressure has remained at 20 cm H2O. Minimal secretions are obtained with suctioning. Which of the following is most appropriate?
A. Increase the peak flow.
B. Change to SIMV.
C. Administer a bronchodilator.
D. Recommend a corticosteroid.
7. Page 7 Recognized Text
The following chest radiograph is obtained for a patient who has a history of coronary artery disease:
A respiratory therapist should conclude the patient has
A. pneumonia.
B. a pneumothorax
C. pulmonary edema.
D. hyperinflation.
8. Page 8 Recognized Text
Which of the following should be used to measure carboxyhemoglobin concentration?
A. hemoximetry (CO-oximetry)
B. blood gas analysis
C. exhaled CO monitoring
D. pulse oximetry
9. Page 9 Recognized Text
An air/oxygen blender is set to deliver an FiO2 of 0.30. The in-line analyzer indicates an FiO2 of 0.37. Which of the following are possible explanations?
1. The airline pressure has increased.
2. The air/oxygen blender requires maintenance.
3. The oxygen analyzer has malfunctioned.
4. The oxygen line pressure has decreased.
A. 3 and 4 only
B. 1 and 2 only
C. 2 and 3 only
D. 1 and 4 only
10. Page 10 Recognized Text
The following PFT result is observed:
What formula should a respiratory therapist use to calculate functional residual capacity?
A. 1+2
B. 3+4
C. 4+6
D. 5+7
11. Page 11 Recognized Text
The use of a full-face mask for the application of NPPV should be considered for patients with
A. decreased level of consciousness.
B. fracture of the mandible.
C. chronic nausea.
D. mouth breathing.
12. Page 12 Recognized Text
A respiratory therapist is administering an apnea test for brain death determination of a patient receiving mechanical ventilation. Prior to the test, the patient's PaCO2 is 39 mm Hg. An ABG analysis performed 10 minutes after removal from ventilatory support shows a PaCO2 of 65 mm Hg with otherwise stable vital sings. Respiratory efforts were absent over those 10 minutes. Which of the following should the therapist conclude?
A. A diagnosis of brain death is supported.
B. The test time should be extended to 20 minutes.
C. The test results are inconclusive.
D. The patient retains CO2 chronically.
13. Page 13 Recognized Text
A 57-year-old male with lung cancer and pneumonia is receiving 40% oxygen by air- entrainment mask. Significant symptoms include dyspnea, hemoptysis, and skin breakdown on the bridge of the nose. SpO2 is 86%. A respiratory therapist should recommend.
A. aerosolized bronchodilators.
B. nasal CPAP.
C. inhaled corticosteroids.
D. high-flow nasal cannula.
14. Page 14 Recognized Text
An indication for PEEP in patients with ARDS is to achieve.
A. an increase in minute ventilation.
B. a decrease in stroke volume.
C. an increase in cardiac output.
D. a decrease in A-a oxygen gradient.
15. Page 15 Recognized Text
When a speaking valve is attached to a tracheostomy tube, a patient complains of difficulty breathing. A respiratory therapist should FIRST
A. remove the speaking valve.
B. inflate the tracheostomy tube cuff.
C. instruct the patient on relaxation techniques.
D. reverse the direction of the valve.
16. Page 16 Recognized Text
A patient has a large persistent air leak in the right lung, despite chest tube drainage. Which of the following should a respiratory therapist recommend a optimize ventilation?
1. low PEEP
2. independent lung ventilation (ILV)
3. high FiO2
4. A/C mode
A. 3 and 4 only
B. 1 and 2 only
C. 1 and 3 only
D. 2 and 4 only
17. Page 17 Recognized Text
A physician would like to change the l:E from 1:4 to 1:2 for a patient receiving PC ventilation. Which of the following should a respiratory therapist do?
A. Increase PEEP.
B. Decrease the mandatory rate.
C. Increase the inspiratory time.
D. Decrease the pressure limit.
18. Page 18 Recognized Text
A 25-year-old patient is brought to the ED after being involved in a motor vehicle crash. The patient suffered multiple extremity fractures. Severe abdominal injuries are suspected. The PaO2 is 80 mm Hg. Which of the following laboratory tests should a respiratory therapist review to further assess the patient’s oxygen delivery status?
A. blood urea nitrogen (BUN)
B. complete blood count (CBC)
C. serum electrolytes
D. creatinine phosphokinase (CPK)
19. Page 19 Recognized Text
Atelectasis of the right upper lobe on a chest radiograph is most consistent with a diagnosis of
A. right-sided tension pneumothorax.
B. foreign body aspiration.
C. bronchiectasis.
D. chronic obstructive pulmonary disease.
20. Page 20 Recognized Text
A 68-year-old patient who receives furosemide (Lasix) and potassium replacement therapy presents to the ED with tachycardia, dyspnea, and tachypnea He is afebrile with coarse crackles prominent at the bases upon auscultation. Analysis of a blood gas sample obtained while the patient receives O2 therapy by
nonrebreathing mask reveals the following results:
ph 7.44
PaCO2 33 mm Hg
PaO2 46 mm Hg
HCO3- 22 mEq/L
BE -1 mEq/L
SaO2(calc) 81%
Which of the following changes should a respiratory therapist recommend in this patient's oxygen therapy?
A. Change to F1O2 of 1.0 by endotracheal tube and T-piece.
B. Change to 5 cm H2O CPAP with an F1O2 of 1.0.
C. Initiate invasive mechanical ventilation.
D. Change to F1O2 of 0.80 by aerosol mask. [Show Less]