Beta-2 response:

You are dispatched at 4AM to a call for a “man who cannot breathe”. The wife tells you that her 58-year-old husband suffers from “heart and lung problems”. His history includes smoking three packs/day for the last twenty years. He has always had a chronic cough which has gotten much worse since he caught a “cold” last week. The last two nights he has had to sit up in order to breathe. You find the husband sitting bolt upright in a kitchen chair. He is an obese man, cyanotic, laboring to breathe. He appears agitated and confused. His pulse relates to the EKG strip above, respirations are 32 and shallow; BP is 100/62. You notice that there are retractions in his supraclavicular and intercostal muscles during respiration. His neck veins are distended. There are fine crackles in both lung bases and wheezes that are more pronounced on exhalation. There is 4+ pitting edema of both feet. The EKG rhythm and field impression is:

Each endotracheal intubation attempt should be limited to a maximum of ___ seconds.

Diltiazem is indicated in the initial treatment of:

You are to administer 65 mg of Lasix. You have a 10 ml vial that contains 100 milligrams of the drug. How many milliliters will you draw?

Neurological control of inspiration occurs in the:

The isoelectric line is:

In the elderly, most myocardial infarctions occur as a result of:

Which of the following conditions is characterized by the presence of a productive cough occurring most days for at least three months of the year for at least two years?

The most malignant complication in the first few hours of myocardial infarction is: