Which of the following would explain why a person might need an implanted pacemaker device?
A) There is a problem with the electrical system in the heart.
B) The heart muscle is damaged and is unable to contract.
C) Their potassium levels are too low which prevents depolarization.
D) They have malfunctioning valves between the cardiac chambers.
Answer: A
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Halon is a compound that damages the _____________, so scientists have urged restriction of its use
a. oxygen layer b. Earth's ozone layer c. carbon dioxide layer d. Sun's UV rays
Which instructions would you provide to the Emergency Medical Responders when treating a patient who was punched in the eye and has blood visible in the anterior chamber?
A) "It is important to keep pressure down in the eye, so we will transport the patient in a sitting position." B) "Let's apply a cold pack to the eye and immobilize the patient for transport." C) "Let's put a shield over the eye and bandage it in place to apply some pressure to the eye." D) "We will need to cover both eyes with patches before we transport the patient."
Near-infrared spectroscopy monitors O2 saturation in the field of _____.
A. neurosurgery B. cardiovascular surgery C. neonatal ICU D. all of the above
The key elements of a registry includes a data source (or multiple data sources) for a defined area (assume an entire country), a standardized set of items that can be repeated on a regular basis (annually for example), and feedback to the responsible health agencies.
Answer the following statement true (T) or false (F)