Alpha2-receptors are often used in:
A) increasing renin release from the kidneys
B) reducing blood pressure
C) raising blood pressure
D) increasing plasma concentrations of norepinephrine
B) reducing blood pressure
Alpha2-receptors are often used in reducing blood pressure. They are believed to be located on the presynaptic neurons and seem to function as controllers of neurotransmitter release by the presynaptic neurons.
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In which of the following conditions does the arterial-mixed venous O2 content difference (a–O2 difference) become misleading when it is used to assess tissue O2 extraction?
A. cardiogenic shock B. septic shock C. neurogenic shock D. anaphylactic shock
Brian has come to the physician's office complaining of pain and stiffness in his left elbow. He is a member of the crew team at his college, and the stiffness is affecting his ability to row. Which types of testing would you expect the physician to perform first?
A. Mobility and muscle strength testing B. Muscle strength and gait testing C. Gait testing and blood testing D. Blood testing and posture testing E. Posture testing and muscle strength testing
Because Occupational Safety and Health Administration (OSHA) standards have become very strict, there are a variety of safety devices to _______ or withdraw contaminated needles
a. sterilize b. cover c. remove d. contain
What is the rate of wandering atrial pacemaker rhythm (WAP)?
A. 40 to 60 beats per minute B. 60 to 100 beats per minute C. Greater than 150 beats per minute D. 100 to 150 beats per minute