Which of the following is a medical risk factor for premature labor?

What is the difference between the simple face mask and the nonrebreather face mask?

A) The nonrebreather may feel confining to the patient, the simple will not. B) The nonrebreather has a reservoir bag and rubber flaps over the inlet/outlet ports, the simple does not. C) The nonrebreather requires a tight face seal, the simple does not. D) All of the above are correct.

All of the following are considered "do's" when using e-mail, EXCEPT

A) use all upper case letters B) delete all e-mails in which the sender cannot be identified C) include part of the original e-mail you are responding to D) keep e-mail address book up to date