Clinical Assessment Study Set 1
Quiz 8 :
Interpretation of Blood Gases
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Q16 Q16 Q16
A 32-year-old man comes to the emergency department after a traffic accident with the following data: pulse, 118 beats/min; respiratory rate, 27 breaths/min; blood pressure, 100/68 mm Hg; paradoxical chest movement on the left side; breath sounds decreased on the left; and ABG on room air (21%) as follows: pH, 7.32; PaCO2, 70 mm Hg; PaO2, 57 mm Hg; HCO3-, 23 mEq/L; base excess, 0; SaO2, 86%, CaO2, 15.2 vol%; Hb, 13.0 g/dL; P(A-a)O2, 18 mm Hg. Based on this information, what is the primary cause of the patient's hypoxemia?
Q27 Q27 Q27
A 17-year-old man is brought into the emergency department. Vitals are as follows: pulse, 100 beats/min; respiratory rate, 4 breaths/min; and blood pressure, 100/65 mm Hg. The patient was at a party, where he was discovered by his friends to be slumped in a chair and unresponsive. ABG results are as follows: pH 7.29, PaCO2 68 mm Hg, HCO3- 29 mEq/L, BE + 1 mEq/L The patient's acid-base status is classified as which of the following?
Q30 Q30 Q30
A 35-year-old, 54 kg woman with congestive heart failure enters the emergency department short of breath. An ABG shows the following results: pH 7.50, PaCO2 30 mm Hg, HCO3- 23 mEq/L, base excess +2 mEq/L The patient's ABG results indicate which of the following?