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What part of the airway functions as a direct conduit for air to reach the alveoli?

Why do we strive to reduce interruptions during CPR?

Markets tend toward equilibrium and, as a result, will tend to eliminate shortages and surpluses. Explain why. 

For each activity, select the appropriate categories of: cannot count toward fieldwork hours, restricted activity, or unrestricted activity.

2. The amniotic fluid serves to:A) transfer oxygen to the fetus.B) insulate and protect the fetus.C) remove viruses from the fetus.D) assist in fetal development.

When preparing a pregnant patient for delivery, you should position her:A) in a supine position with her legs spread.B) on her left side with the right leg elevated.C) in a sitting position with her hips elevated 12 inches.D) on a firm surface with her hips elevated two to four inches.

Which of the following statements regarding a breech presentation is correct? A) A breech presentation occurs when the buttocks are the presenting part.B) There is minimal risk of trauma to the infant with a breech presentation.C) It is impossible to deliver a breech presentation in the prehospital setting.D) Breech deliveries occur rapidly, so the EMT should deliver at the scene.  

A precipitous (done sudden) labor and delivery is most common in women who:A) have gestational diabetes.B) are younger than 30 years of age. C) have delivered a baby before.  D) are pregnant for the first time.

A pregnant trauma patient might lose a significant amount of blood before showing signs of shock because:A) pregnant patients can dramatically increase their heart rate. B) pregnancy causes vasodilation and a lower blood pressure.C) pregnant patients have an overall increase in blood volume.D) blood is shunted to the uterus and fetus during major trauma.

Which of the following is an indication of imminent birth?A) Rupture of the amniotic sacB) Crowning of the baby’s headC) Irregular contractions lasting 10 minutesD) Expulsion of the mucus plug from the vagina