Which of the following lumens found in a standard balloon floatation catheter would be used to obtain a mixed venous blood sample?
a. Balloon lumen c. Proximal lumen
b. Distal lumen d. Thermodilution lu-men
ANS: B
The balloon lumen is used to inflate the balloon; this is done during insertion of the catheter and measurement of wedge pressure. The distal lumen is positioned in a branch of the pulmonary ar-tery; it is used to measure pulmonary artery pressure, pulmonary artery occlusion pressure, and to obtain mixed venous blood sample. The proximal lumen is positioned in the right atrium and is used to measure central venous pressure. The thermodilution lumen is used to measure cardiac output.
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You are teaching some EMRs to use the Jump START system of triage. Which one of the following comments made by an EMR requires you to intervene and provide corrective instruction?
A) "I like the Jump START system since it uses the same categories of assessment as the START system of triage." B) "The Jump START system is very effective since it allows me to take two minutes to assess the patient." C) "The Jump START system allows me to classify the patient according to his ability to ambulate, his breathing, perfusion, and mental status." D) "If we have a young child injured in a multiple-casualty incident, I will use the Jump START system to triage him."
The structure that lies between the trachea and bronchi is the:
A) Larynx B) Carina C) Bronchioles D) Cricoid cartilage
If a person is responsive but choking and coughing forcefully, you should:
a. Perform the abdominal thrusts b. Perform the chest thrusts c. Perform the finger sweeps d. Perform the obstructed airway maneuver e. none of the above
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