Which of the following statements regarding plastic construction materials is MOST accurate?
A. Materials are inorganic.
B. Materials are human-made.
C. Materials are much less strong than wood.
D. Materials are often used for structural applications.
B
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As brain herniation occurs, the body responds by:
A) increasing blood pressure to perfuse the brain. B) increasing the heart rate to circulate oxygen-rich blood faster. C) decreasing blood pressure to decrease pressure within the skull. D) discharging cerebrospinal fluid to decrease pressure within the skull.
On inspection of a patient's ECG strip, you note no identifiable P waves; rapid irregular undulations of the isoelectric line; and an irregular ventricular rhythm. In addition, the precordial cardiac rate is greater than the peripheral pulse rate. The most likely problem is:
A. 2nd degree (Wenckebach) heart block B. ventricular fibrillation C. atrial fibrillation D. ventricular tachycardia