A patient is admitted through the Emergency Department with a diagnosis of carbon monoxide poisoning. ABGs, which are drawn with her breathing room air, show the following:
pH7.30
PaCO231 torr
PaO284 torr
HCO3-14 mEq/L
BE-10 mEq/L
Based on this, what change should be recommended?
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A patient is admitted through the Emergency Department with a diagnosis of carbon monoxide
poisoning. ABGs, which are drawn with her breathing room air, show the following:
Based on this, what change should be recommended?
Institute mechanical ventilation with 50% O2.
Discharge her because she is not hypoxemic.
Give the patient 28% O2 by an air-entrainment mask.
Give the patient a nonrebreathing mask with 10 L/min of oxygen. correct answers Give the
patient a nonrebreathing mask with 10 L/min of oxygen.
A patient with pulmonary edema is coughing up large quantities of pink, frothy sputum. ABG
values while breathing 30% oxygen are as follows:
pH7.42
PaCO228 mm Hg
PaO245 mm Hg
HCO3-21 mEq/L
BE-4 mEq/L
SaO276%
What would be the best treatment?
IPPB with compressed air
50% O2 and postural drainage therapy
Mask CPAP at 5 cm water with 40% O2
Place on BIPAP- IPAP 12 cm H2o/EPAP 5 cm H2o, 30% FiO2 correct answers Mask CPAP at 5
cm water with 40% O2
A 35-year-old patient is being mechanically ventilated with VC, SIMV at these settings: rate, 12
times/min; VT, 600 mL; and O2, 40%. He is not breathing spontaneously. Based on these
settings, he has the following blood gas results:
What, if anything, would you recommend to correct these values?
, Decrease the O2 percentage.
Add mechanical dead space.
Make no changes at this time.
Decrease the SIMV rate. correct answers Decrease the SIMV rate.
A patient rescued from a house fire is wearing a non-rebreather set at 15 L/min because of
suspected carbon monoxide poisoning. A standard pulse oximeter on the patient's right index
finger shows a SpO2 value of 100%. An arterial blood gas sample is obtained and sent to the
laboratory for analysis on a blood gas analyzer and a CO-oximeter. Results from the analyzer are
as follows:
pH7.24
PaCO235 torr
PaO2348 torr
HCO3-19 mEq/L
BE-14 mEq/L
SaO2100%
Results from the CO-oximeter are as follows:
O2Hb80%
COHb20%
MetHb2%
Which result(s) should be followed to best assess the patient's clinical status?
SpO2
O2Hb and COHb
SaO2
SaO2 and PaO2 correct answers O2Hb and COHb
A 64-kg (141-lb) COPD patient has had an acute exacerbation and is receiving mechanical
ventilation with these settings:
VT450 mL
Respiratory rate10 breaths/min
FIO2 0.35
I:E 1:3
ABG results are as follows:
pH7.38
PaCO258 mm Hg
PaO262 mm Hg
HCO3-33 mEq/L
BE+9 mEq/L
SaO289%
What should the respiratory therapist recommend?
Increase the VT.
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