A child wants to balance a meter stick pivoted at the 0.50-m line (in the middle).  A 3.0-kg object is hung from the 0.15-m line.  Where should the child hang a 5.0-kg object to achieve equilibrium (the meter stick oriented horizontal and motionless)?

The physicists are known to be daredevils. One of them, a physics professor’s gravitational potential energy is 1400 J as she sits 2 m above the ground in a sky diving airplane before it takes off.  What is the same professor’s gravitational potential energy when she begins to jump from the airplane at an altitude of 955 m? 

Your agency is first to arrive on scene of a two-motor vehicle collision and finds a delivery vehicle leaking an unknown fluid from the package compartment. How can the paramedic best stabilize this scene to avoid further injuries?

You are dispatched emergency mode to a college dormitory room for a syncope call. The patient is a 22-year -old female who had several fainting spells this morning after her jog. Fellow students inform you she is normally a healthy responsible student who is currently looking very “sickly”. The patient explains during her run she developed serious sharp stabbing pain in the abdominal area that nearly disabled her. The discomfort is still severe and the patient appears very pale. Which question will assist the paramedics most during their assessment?

You are called to the home of a 62-year-old female with a history of diabetes who is complaining of generalized weakness and has the ECG shown below. She indicates that she has no history of heart disorders and last week her physician said her 12-lead was normal. She checked her blood sugar 3 hours ago and reports it to be normal. Which of the following assessments would be most beneficial for identifying how to proceed with this patient?

You are called to treat a 6-month-old patient who was found unresponsive in his crib, and your assessment reveals an unresponsive patient with a brachial pulse of 64. Which of the following interventions is most important?

You are treating a 64-year-old female patient who has broken her right ankle. The patient has a history of COPD and is on supplemental oxygen at 2 lpm via nasal cannula. The patient’s vitals are: pulse 90, respirations 20, blood pressure 150/90, skin is pink, warm and dry, and pulse oximetry at 94. Which of the following should you choose for oxygen administration?

You are transporting a 6-year-old male patient who weighs 24 kg and is only responsive to deep painful stimuli. You suspect he has an upper respiratory infection and is breathing at 30 times per minute, heart rate of 140, and blood pressure of 90/50. You have the patient on a non-rebreather mask at 12-15 lpm. Over the last 2 minutes, the heart rate and blood pressure have to dropped significantly while respirations have increased to 36. Which of the following should you perform?

You are called to assess a very tall, 24-year-old male with a diagnosed history of Marfan’s Syndrome who is complaining of severe chest pain. Lung sounds are equal and his 12-lead is normal. He rates the pain as a 10 and indicates it is a tearing sensation located immediately between his shoulder blades. You suspect the patient has a dissecting aortic aneurysm. Which of the following medications would be the most appropriate to treat this patient?

An ALS ambulance responds emergency mode to an apartment building where a 25-year-old male has ingested some type of chemical from the kitchen. The patient is confused and nauseated. After assuring the airway is self-maintained, what information will be most valuable for the paramedics to collect?