On an EKG, the EMT would understand the QRS to represent:
A) contraction of the atria.
B) contraction of the ventricles.
C) contraction of both the atria and ventricles.
D) the heart at rest following contraction.
B
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True or false (circle one). The very act of touching another person with focused attention is therapeutic, which is why palpation becomes treatment quite rapidly
Indicate whether the statement is true or false.
A microbiology student has walking pneumonia due to Mycoplasma pneumoniae. He decides to self-medicate with the leftover penicillin tablets he had from his last case of Streptococcus pyogenes. What is the fault in his thought process?
A) Mycoplasma pneumoniae does not possess porins to take in the antibiotic. B) Penicillin is destroyed due to beta-lactamase production by M. pneumoniae. C) Penicillin is not routinely used to treat group A Streptococcus pharyngitis. D) M. pneumoniae does not possess a cell wall.