The two main adrenergic receptors are alpha and beta. Whereas alpha-adrenergic receptors respond to adrenaline, beta-adrenergic receptors respond to:
A) nicotine
B) sympathomimetics
C) acetylcholine
D) norepinephrine or epinephrine
D) norepinephrine or epinephrine
Beta-adrenergic receptors respond to norepinephrine or epinephrine and are found on smooth and cardiac muscle membranes. Beta-receptor antagonists work primarily on cardiac muscle, competitively blocking beta-adrenergic receptors within the heart.
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Which statement is true regarding care of the multisystem trauma patient?
A) Any threat to life should be managed as it is identified B) All care should be provided en route to the hospital C) Spinal motion restriction precautions can be foregone if the patient is near death D) Advanced life support by paramedics is the definitive care for multisystem trauma patients
Accounts payable refers to the money the provider:
a. brings in. b. pays out. c. balances. d. sends to collections.
Which movement involves the hand moving from a palm up position to a palm down position?
A) wrist pronation B) wrist supination C) radial deviation D) ulnar deviation
A 5% (W/V) dextrose solution would be expressed as:
A. 5 g dextrose/100 mL of water. B. 5 mL dextrose/100 mL of solution. C. 5 g dextrose/100 mL of solution. D. 5 mL of dextrose/100 g of water.