Chemical compounds containing nitrogen that are derived from the amino acid tyrosine are known as:
A) adrenalines
B) alpha-adrenergic receptors
C) catecholamines
D) thymosines
C) catecholamines
Norepinephrine and epinephrine are catecholamines (chemical compounds containing nitrogen that are derived from the amino acid tyrosine), which bind to adrenergic receptors and produce sympathetic effects.
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The outer surface of the lungs is covered by the ________
a. hilum b. uvula c. epiglottis d. pleura
Red bone marrow converts to ________ marrow as you age
A) white B) yellow C) pink D) green
An awake but confused patient experiencing an allergic reaction begins to exhibit stridorous respirations. The EMT knows that the underlying condition responsible for this presentation is:
A) constriction of the small airways. B) spasm of the lower airway. C) swelling to the upper airway. D) loss of the gag reflex.
Increased fremitus over part of the patient's chest wall may indicate:
A) pneumonia. B) emphysema. C) pleural effusion. D) pneumothorax.