The general function of both sets of valves in the heart is to prevent blood from flowing back to the chamber it just left.
a. true
b. false

Rectangle pqrs has vertices p(1, 4), q(6, 4), r(6, 1), and s(1, 1). without graphing, find the new coordinates of the vertices of the rectangle after a reflection over the x-axis and then another reflection over the y-axis.

Anurse is reviewing the medical record of a client who is receiving vancomycin daily. the nurse should review which of the following laboratory results prior to administering the next dose? a. blood glucose level b. serum creatinine level c. total iron-binding count d. thyroid-stimulating hormone level

Anurse is administering medications to a client and mistakenly gives hydroxyzine instead of hydralazine. the nurse should monitor the client for which of the following adverse effects? a. edema b. diplopia c. fever d. sedation