The buffer area must be which class of ISO environment?

When caring for an older patient who is hearing-impaired, you should:

A. speak very loudly to be sure the patient can hear you. B. speak directly into the patient's ear or maintain eye contact for lip readers. C. assume that the patient can read lips. D. not attempt to communicate because it will only frustrate the patient.

Lopressor is a beta-blocker, which blocks epinephrine receptors

Indicate whether the statement is true or false