Closure of the tricuspid and mitral valves occurs during:

Which of the following are clinical indicators of respiratory failure?

The first arriving paramedics administered 6 mg of adenosine prior to your arrival. You then administer a second dose of 12 mg. How many total mg has the patient received?

You hear about a med error where another paramedic administered 10 times the normal dose of pediatric epinephrine. If your protocol calls for 0.06 mg, how many mg did the paramedic give during the med error? 

A 35-year-old female complains of arm pain where she was bitten by a male attacker. You observe teeth marks, slight bleeding, and bruising to the area. She tells you she doesn’t want to go to the hospital, and she just wants you to look at it. You should:

A 48-year-old female has fatigue and shortness of breath. She has a history of sickle cell anemia and tells you she is in crisis. Her lungs are clear to auscultation. Her vital signs are P 98, R 20, BP 148/84, and SpO2 is 93% on room air. You should suspect:

An 86-year-old female is confused and is sitting leaning to the left in a chair. You hear snoring respirations. After you reposition her, the snoring stops, and you auscultate clear lung sounds. She tries to answer your questions, but her speech is garbled. Her vital signs are P 94, R 18, BP 138/82, and SpO2 is 91% on room air. Her blood glucose level is 74 mg/dL. You should:

An 82-year-old male complains of foot pain after he stepped on a rusty nail. You observe a small puncture wound but no further bleeding. You should:

During your resuscitation efforts, you have defibrillated an unresponsive 42-year-old male twice. While your partner is performing chest compressions, it appears that the patient is taking breaths. You should suspect:

You are resuscitating an 81-year-old female who is in cardiac arrest. Why is it important that you maximize the time you are compressing her chest?