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Nebulas contract due to the force of

What evidence do astronomers point to as an example of the Nebular Contraction Theory?

Planets orbit the Sun counter-clockwise since the nebula was spinning counter-clockwise. 

The client returns from the post-anesthesia care unit (PACU) with the following order: morphine 3 mg IV every 2 hours as needed for relief of pain The vial reads morphine, 4 mg/mL. How many milliliters of morphine will the nurse administer? Round to the nearest hundredth. 

The nurse, working on the maternity unit, receives a call from a pregnant woman asking how she can know whether a medication is safe to take while pregnant. What is the nurse’s best response?

The nurse is initiating discharge teaching with the newly diagnosed patient with diabetes. Which statement indicates that the patient needs additional teaching? 

A nurse is educating a patient about a new medication with a half-life of 8 hours. Which of the following statements best explains the concept of half-life?

A nurse is reviewing a patient’s medication regimen and notes that one of the drugs is classified as FDA Pregnancy Category D. What does this classification indicate?

A nurse is providing education about insulin administration and storage. Which of the following should be included in the education? Select all that apply. 

Which of the following is a primary mechanism of action of empagliflozin?