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A 19-year-old man presents with hot, moist skin; confusion; tachycardia; and tachypnea shortly after completing a marathon. According to his marathon registration form, he has no significant medical problems and takes no medications. Which of the following treatments are contraindicated for this patient?

A 45-year-old woman presents with severe cramps in her legs, nausea, and lightheadedness after running laps at the track. The temperature outside is 95 degrees Fahrenheit and the relative humidity is 80%. The patient is conscious and alert and is sweating profusely. Her blood pressure is 92/60 mm Hg, pulse is 130 beats/min and weak, and respirations are 24 breaths/min and regular. The most appropriate treatment for this patient involves:

Pick the best description of the rhythm from the following list.

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:

Per ACLS, epinephrine may be administered IV push in the treatment of (select all that apply): 

Which of the following solutions is considered the most hypertonic?

Amiodarone:

In Lead III the electrode on:

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

If ST segment elevation is noted in Leads V4, V5, and V6, this finding is indicative of: