During DNA replication in prokaryotes, what mechanism allows RNA polymerase to move in just one direction toward a single replication fork, even though the leading and lagging strands are oriented on opposite directions?

Which of these structures are purines?

The patient you are caring for has a DEXA scan scheduled.  You are correct in stating which of the following: 

You have been asked to provide patient education regarding vaccines to adults aged 50 and older.  Which of the following vaccines should be screened for and/or given in this age group?  (select all that apply)

A nurse is preparing to teach a client who has hearing loss. Which of the following actions should the nurse plan to take? 

          A nurse is caring for a patient who is diagnosed with terminal cancer. The patient asks several questions about the nurse’s religious beliefs related to death and dying. An appropriate nursing response is to:

An elderly patient dying from heart failure states that he knows he is dying and is worried about what will happen to his wife when he is gone. In planning care for this patient, the nurse understands which type of grief is being demonstrated. 

The nurse is caring for older adults in an adult senior center.  Which findings related to the normal aging process would the nurse be likely to observe?  Select three (3) correct answers from the options below. 

Identify the following risk factors as modifiable or nonmodifiable.  Match each option with the correct category. 

The nurse is caring for a dying patient whose family member asks, “how much longer until he passes?” The nurse is aware of signs of impending death. Which of the following are clinical signs of impending or approaching death?  Select three correct answers from the options below.