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Moving air into and out of the chest requires an airway that is:

The cervical spine is formed by:

A patient with tachycardia will likely experience:

How will bradycardia affect the cardiac output?

25 year old female with a history of obesity but no other PMH reports irregular menstrual periods and an inability to conceive.  The patient reports she gets her periods only few times a year.  Each menstruation typically last for a few weeks.  Last LMP was few months ago.  The patient also reports she has been trying to get pregnant for about 6 months with no luck.  The patient denies any recent significant weight loss or weight gain.  On exam, patient is no distress.  She is significantly overweight.  (+) visible facial hair.  Skin is significant for diffuse acne.  On pelvic exam: cervix is closed with no lesions, uterus non-tender, no adnexal masses, no pelvic motion tenderness.  Otherwise, exam is unremarkable.  VS: BP: 120/70 mmHg Rt arm sitting; HR:70 bpm, T: 98.6F oral, RR: 16 bpm unlabored. Please provide differential diagnosis for this presentation (list at least 5) AND what imaging would be indicated for this case.  

Medical direction has asked you to give the patient three nitroglycerin tablets. Which of the following responses to medical control is best?

A patient who called 911 is now refusing transport. You should:

Match the following pathophysiological terms with their correct definitions:  

A general release of a harmful substance into the environment is called a:

The National Highway Safety Act charged which government entity with developing an EMS system and upgrading prehospital emergency care?