The middle muscular layer of the heart is called the:
A. pericardium.
B. myocardium.
C. epicardium.
D. endocardium.
Answer: B. myocardium.
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When administering continuous positive airway pressure (CPAP) to a patient, you would recognize that the patient is benefiting from the treatment when the:
A) Patient states he is breathing easier B) Heart rate increases from baseline by 10 percent C) Systolic blood pressure drops below 100 mmHg D) Patient can resume control of his airway
The study of ethical issues resulting from technologic and scientific advances is called _____
A) bioethics B) eugenics C) Medical technology D) The scientific method
You arrive at the scene where a 49 year old woman is found semiconscious on the floor of her living room. The patient's husband tells you that they were watching TV when this condition suddenly developed. No trauma was involved. The patient moans occasionally and has slight cyanosis to her lips. After performing a head tilt-chin lift maneuver on this patient, you should next
A. assess her respirations B. determine the need for oxygen C. insert an oropharyngeal airway D. insert a nasopharyngeal airway
Which of the following interactions with matter results in a radiograph with higher contrast?
a. Compton scattering b. coherent scatter c. photoelectric interactions d. photodisintegration