A 45-year-old male was involved in a MVA. The patient is complaining of shortness of breath and chest pain. You recognize that the patient has JVD and the patient's pulse is weak and thready. You believe the patient has a pericardial tamponade. You distinguish that this is the problem with the patient by nothing or discovering
A. decreased heart sounds
B. patient has JVD
C. narrowing pulse pressure
D. patient is complaining of chest pain
Answer: C. narrowing pulse pressure
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An EMT is presenting a continuing education class on the care of the pregnant female. When discussing the amniotic sac, he is correct to emphasize which of the following points?
A) "It contains fluid and surrounds and protects the uterus." B) "It contains a fluid called Wharton's jelly that enables the baby to breathe and move." C) "It must rupture during the second trimester of pregnancy for fetal development to progress." D) "It protects and insulates the baby during pregnancy."
Occlusion of this artery is associated with the development of second- and third-degree heart blocks
A) MA B) PDA C) LAD D) RCA
Which of the following indicate severely impaired oxygenation requiring high FiO2s and positive end expiratory pressure?
1. PaO2–PaO2 greater than 350 mm Hg on 100% O2 2. VC less than 10 ml/kg 3. PaO2/FiO2 less than 200 4. PaCO2 greater than 45 mm Hg a. 1 and 4 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 4 only
____ occurs frequently at altitudes above 14,000 feet and is caused by a lack of oxygen to the retina.
A. High altitude retinal hemorrhage B. Optic neuritis C. Snow blindness D. Strabismus