AEMCA Practice Exam

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Study for the AEMCA Exam. Enhance your knowledge with our quiz, complete with multiple choice questions designed to boost your exam readiness. Gain confidence and improve your chances for success in your AEMCA certification.

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How long can you keep a patient with an M tank at 600 psi flowing at 8 L/min before needing to reach the hospital?

  1. 15 minutes

  2. 19.5 minutes

  3. 25 minutes

  4. 30 minutes

The correct answer is: 19.5 minutes

To determine how long you can keep a patient with an M tank at 600 psi flowing at 8 L/min before needing to reach the hospital, it is essential to understand the capacity of the M tank, which typically holds about 3,000 liters of medical oxygen when full. First, you calculate the amount of usable oxygen remaining in the tank at 600 psi. The M tank is considered empty at approximately 200 psi, meaning there are 400 psi of usable oxygen left in the tank. The assumption made is that the pressure is directly proportional to the volume of gas remaining, so you can calculate the liters of oxygen available at the existing pressure. With 3,000 liters full, at 2,000 psi, you would have the following turnover for the remaining liters based on the given psi: - Full tank: 3,000 liters at 3,000 psi - 600 psi remaining: (600 psi / 3,000 psi) * 3,000 liters = 600 liters of usable oxygen. Now that you have the available liters of oxygen, you can calculate how long this will last when the patient is receiving oxygen flow at 8 L/min: - Total usable oxygen: 600 liters -

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