The nurse is examining the waveform produced by central venous pressure (CVP) catheter. Passive filling of the atria occurs at which point on the waveform?

A nurse is caring for a patient who is recovering from total hip replacement surgery. The patient has required increasing doses of IV morphine for pain control. The patient is again reporting 10/10 pain despite receiving 10 mg of morphine from the nurse, which is the top of the range ordered by the physician. The nurse monitors which of the following most closely?

The patient with palpitations and sharp chest pain that is worse with inspiration than expiration is brought to the emergency department (ED). Upon auscultation of heart sounds, the nurse notes a scratching noise, like leather rubbing together. Breath sounds are clear and equal bilaterally. Complete blood count is notable for leukocytosis; cardiac enzymes are within normal limits. The nurse prepares the patient for which treatment?