Which of the following signs and symptoms indicate that the application of NPPV is being successful? I. improvement of vital signs II. absence of respiratory muscle effort III. gas exchange improvement within 1 hour IV. decreased patient agitation and anxiety

In which of the following scenarios is the EHR functioning in an order management capacity, as described by the IOM?

A) When a physician types the prescribed dose of a particular medication into a patient's electronic health record, the system generates a warning stating that this dose is dangerously high and may have been entered incorrectly. B) Whenever a particular drug is recalled, a practice's electronic records system generates a list of all patients who are taking this medication so they can be immediately notified of the recall. C) After a patient undergoes laboratory testing to determine his serum cholesterol levels, the electronic health records system automatically emails him a copy of the test results. D) Each week, a hospital's electronic health records system transmits information regarding all new cases of reportable diseases to the county health department.

What are the current guidelines for physical activity in the U.S.?