A physician orders 500 mg of an antibiotic for a patient. The antibiotic is available in 125-mg tablets. How many tablets should be given to the patient?

________ is when a cell membrane cannot respond normally to further stimulation

A) The refractory period B) Threshold C) Repolarization D) Action potential

A(n) ____contains three serotypes of polio and is typically administered to children under 5 years of age.

A. PC3V B. TOPV C. MMR vaccine D. HEPA vaccine