The vaccine vial when mixed with a powder and diluent, should be inverted ____ to ____ times to mix.

You are getting the past medical history of a patient who suffered the sudden onset of right-side weakness. Which one of the following statements made by the patient should you recognize as increasing the patient's risk of stroke?

A) "I take an aspirin every morning." B) "My blood pressure runs low." C) "I have a history of migraines." D) "I have an irregular heartbeat."

Which item of pre-incident plan data is particularly critical for size-up?

a. use and occupancy b. access c. lockbox location d. ownership