What is the refractory period? why would it be beneficial for cardiac muscle to have a long absolute refractory period?

Anurse is discussing adverse reactions to pain medications in older adult clients with a newly licensed nurse. which of the following findings should the nurse include as risk factors for an adverse drug reaction? (select all that apply.) a. decreased percentage of body fat b. polypharmacy c. multiple health problems d. increased rate of absorption e. decreased renal function