________________________ is a naturally occurring hormone released by the posterior pituitary gland
a. Oxytocin
b. Thyroxine
c. Adrenalin
d. Norepinephrine
a
Rationale: a. Correct.
b. Thyroxine is released by the thyroid.
c. Adrenalin is released by the adrenal gland.
d. Norepinephrine is a neurotransmitter released at neuronal synapses.
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Your patient is an 86-year-old man with a cardiac history. He takes blood thinners and a beta blocker for his heart. He is quite cool to the touch and his pulse oximeter reading is 87 percent. This is concerning because you know that:
A) the beta blocker can cause hypothermia in the elderly population. B) hypothermia causes a shift in the oxygen-hemoglobin dissociation curve. C) beta blockers suppress hemoglobin leading to a decreased oxygen level. D) hypothermia leads to an increased risk of pulmonary embolism.
What term is used to describe a red blood cell (RBC) count that is below normal values?
a. Leukocytosis b. Leukopenia c. Anemia d. Polycythemia