A patient is recovering from acute lung failure. Which results would indicate compensated respiratory acidosis?
a) PaO2 90 mm Hg, pH 7.40, PaCO2 45 mm Hg, HCO3- 26 mEq/L
b) PaO2 90 mm Hg, pH 7.37, PaCO2 60 mm Hg, HCO3- 39 mEq/L
c) PaO2 90 mm Hg, pH 7.25, PaCO2 55 mm Hg, HCO3- 22 mEq/L
d) PaO2 9...
NRSG 4472: Chapter 18 (Pulmonary Diagnostic
Procedures) questions with correct answers
A patient is recovering from acute lung failure. Which results would
indicate compensated respiratory acidosis?
a) PaO2 90 mm Hg, pH 7.40, PaCO2 45 mm Hg, HCO3- 26 mEq/L
b) PaO2 90 mm Hg, pH 7.37, PaCO2 60 mm Hg, HCO3- 39 mEq/L
c) PaO2 90 mm Hg, pH 7.25, PaCO2 55 mm Hg, HCO3- 22 mEq/L
d) PaO2 90 mm Hg, pH 7.25, PaCO2 40 mm Hg, HCO3- 17 mEq/L
Correct Answer-b
A patient has a suspected pulmonary embolus. While awaiting a
ventilation-perfusion scan, the patient is placed on a Ventimask mask at
an FiO2 of 50%, which is maintaining the PaO2 at approximately 70
mm Hg. Which values would indicate significant pulmonary shunting?
a) PaO2/FiO2 ratio of 300
b) PaO2/PAO2 ratio of 220
c) Alveolar-arterial (A-a) gradient of 220 mm Hg
d) PaO2 alone demonstrates significant shunting Correct Answer-c
A patient is experiencing increasing shortness of breath and chest pain
upon inspiration. The results of the chest radiography show the
following: flattening of the diaphragm, blurring of the costophrenic
angle and cardiac silhouette, and a slight shift in the mediastinal
structures. These findings are suggestive of which condition?
a) Pleural effusion
b) Pneumothorax
A patient has experienced a respiratory arrest and is being intubated.
After the endotracheal tube (ETT) has been placed, the PETCO2 value is
lower than expected. What action should be taken next?
a) Reposition the ETT as it is probably in the stomach.
b) Obtain a chest radiograph to confirm proper ETT placement.
c) Replace the capnography because it is probably faulty.
d) Repeat the arterial blood gas measurements to confirm the
discrepancy. Correct Answer-a
A patient has just undergone a bronchoscopy. What complication should
the patient be monitored for?
a) Laryngospasm
b) Pulmonary embolism
c) Allergic reaction to the dye
d) Headache Correct Answer-a
A postoperative patient has a respiratory rate of 10 breaths/min with an
SpO2 of 95%. Arterial blood gas (ABG) values are PaO2 85, pH 7.32,
PaCO2 51, and HCO3 24. What acid-base disorder is this patient
experiencing?
a) Respiratory alkalosis
b) Respiratory acidosis
, c) Metabolic alkalosis
d) Metabolic acidosis Correct Answer-b
Which arterial blood gas (ABG) is considered compensated?
a) pH 7.22, PaCO2 55, HCO3 25
b) pH 7.33, PaCO2 62, HCO3 35
c) pH 7.35, PaCO2 48, HCO3 28
d) pH 7.50, PaCO2 42, HCO3 33 Correct Answer-c
A patient on the ventilator has a PaO2 of 95 and an FiO2 of 50%.
Calculate the P/F ratio.
a) 40
b) 190
c) 475
d) 526 Correct Answer-b
The nurse is providing preprocedural teaching for a patient who is going
to have a fiber-optic bronchoscopy. Which statement indicates that more
teaching is needed?
a) "I will receive medication that will make it okay for me to eat before
the procedure."
b) "I will receive medication that will make me sleepy and keep my
heart rate from dropping."
c) "I will need to be on a cardiac monitor before, during, and after the
procedure."
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